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<RECORD 1>

 

Accession number:20100212633423

Title:A 2.5 Gbit/s free space transmission link over 1km

Authors:Lu, Hongqiang (1); Zhao, Wei (1); Wang, Wei (1); Hu, Hui (1); Xie, Xiaoping (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119; (2) Graduate School of Chinese, Academy of Sciences, Beijing 100039, China

Corresponding author:Lu, H.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7632

Monograph title:Optical Transmission Systems, Switching, and Subsystems VII

Issue date:2009

Publication year:2009

Article number:76321J

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819480347

Document type:Conference article (CA)

Conference name:Optical Transmission Systems, Switching, and Subsystems VII

Conference date:November 2, 2009 - November 6, 2009

Conference location:Shanghai, China

Conference code:79103

Sponsor:Optical Society of America; IEEE Photonics Society; The International Society for Optical Engineering (SPIE); Chinese Optical Society; China Institute of Communications

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:We demonstrate error free transmission of a single 2.5Gbit/s NRZ data channel at 1550nm over 1 km of free space, and the results of 3Gbit/s experiment are given at the same time. The transmitted beam is detected by avalanche photodiode (APD), Bit Error Rate (BER), Signal-to-Noise Ratio (SNR) and Jitter of the detected signals are measured and compared. &copy;2009 SPIE-OSA-IEEE.

Number of references:14

Main heading:Bit error rate

Controlled terms:Jitter - Light transmission - Optical communication - Signal to noise ratio

Uncontrolled terms:1550 nm - Data channels - Error free transmission - Free space - Free-space communication - Free-space transmission - Transmitted beams

Classification code:723.1 Computer Programming - 722.3 Data Communication, Equipment and Techniques - 718 Telephone Systems and Related Technologies; Line Communications - 741.1 Light/Optics - 717.1 Optical Communication Systems - 716.1 Information Theory and Signal Processing - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication

DOI:10.1117/12.852520

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 2>

 

Accession number:20093312247275

Title:First-principles study of the electronic and optical properties of ZnO nanowires

Authors:Zhang, Fu-Chun (1); Zhang, Zhi-Yong (4); Zhang, Wei-Hu (1); Yan, Jun-Feng (4); Yong, Jiang-Ni (4)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; (2) Graduate University, Chinese Academy of Sciences, Beijing 100049, China; (3) College of Physics and Electronic Information, Yan'an University, Shaanxi Yan'an 716000, China; (4) Information Science and Technology Institution, Northwest University, Xi'an 710127, China

Corresponding author:Zhang, Z.-Y.(zhangzy@nwu.edu.cn)

Source title:Chinese Physics B

Abbreviated source title:Chin. Phys.

Volume:18

Issue:6

Issue date:2009

Publication year:2009

Pages:2508-2513

Language:English

ISSN:16741056

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:The geometric, energetic, electronic structures and optical properties of ZnO nanowires (NWs) with hexagonal cross sections are investigated by using the first-principles calculation of plane wave ultra-soft pseudo-potential technology based on the density functional theory (DFT). The calculated results reveal that the initial Zn-O double layers merge into single layers after structural relaxations, the band gap and binding energies decrease with the increase of the ZnO nanowire size. Those properties show great dimension and size dependence. It is also found that the dielectric functions of ZnO NWs have different peaks with respect to light polarization, and the peaks of ZnO NWs exhibit a significant blueshift in comparison with those of bulk ZnO. Our results gives some reference to the thorough understanding of optical properties of ZnO, and also enables more precise monitoring and controlling during the growth of ZnO materials to be possible. &copy; 2009 Chin. Phys. Soc. and IOP Publishing Ltd.

Number of references:32

Main heading:Density functional theory

Controlled terms:Binding energy - Electric wire - Electronic properties - Electronic structure - Growth (materials) - Light transmission - Nanowires - Optical properties - Semiconducting zinc compounds - Solid state physics  - Structural properties - Zinc - Zinc oxide

Uncontrolled terms:Band gaps - Blue shift - Dielectric functions - Double layers - First-principles calculation - First-principles study - Hexagonal cross-sections - Plane wave - Potential technologies - Precise monitoring  - Single layer - Size dependence - ZnO - ZnO nanowires - ZnO NWs

Classification code:931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics - 922.1 Probability Theory - 933 Solid State Physics - 933.1.2 Crystal Growth - 933.3 Electronic Structure of Solids - 951 Materials Science - 933.1.1 Crystal Lattice - 804.2 Inorganic Compounds - 546.3 Zinc and Alloys - 701.1 Electricity: Basic Concepts and Phenomena - 708.2 Conducting Materials - 712.1 Semiconducting Materials - 408 Structural Design - 712.1.2 Compound Semiconducting Materials - 761 Nanotechnology - 801.4 Physical Chemistry - 802.3 Chemical Operations - 741.1 Light/Optics

DOI:10.1088/1674-1056/18/6/065

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 3>

 

Accession number:20102012936015

Title:An algorithm for moving multi-target prediction in a celestial background

Authors:Zhang, Lu (1); Hu, Bingliang (1); Li, Yun (1); Yu, Weiwei (1)

Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy Sciences, Xi'an 710119, China; (2) Graduate University, Chinese Academy Sciences, Beijing 100049, China

Corresponding author:Zhang, L.

Source title:Communications in Computer and Information Science

Abbreviated source title:Commun. Comput. Info. Sci.

Volume:61

Monograph title:Signal Processing, Image Processing and Pattern Recognition: International Conference, SIP 2009, Held as Part of the Future Generation Information Technology Conference, FGIT 2009, Jeju Island, Korea

Issue date:2009

Publication year:2009

Pages:41-47

Language:English

ISSN:18650929

ISBN-13:9783642105456

Document type:Conference article (CA)

Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany

Abstract:Nowadays, there are thousands of in-orbit spacecrafts. It is of strategic significance to identify, track the space targets, and calculate their orbits and coverage area. In the celestial space observation of space targets on a micro spacecraft detector, it is difficult to observe and track targets because of their small size, unobvious geometric shape, and the complex movements relative to observed targets, background and detectors. The prediction algorithm of space targets must satisfy the demands of high reliability, low computation, real-time processing and so on. Based on multi-thread image processing and the Kalman algorithm, a new algorithm is proposed for multi-target prediction. Using this approach, the coordinates of targets can be predicted in real-time and precisely. Through theoretical calculation and computer simulation, this algorithm has shown that it is simple, effective and can satisfy the requirement of working conditions of the micro spacecraft detector well. &copy; 2009 Springer-Verlag Berlin Heidelberg.

Number of references:3

Main heading:Targets

Controlled terms:Algorithms - Computer simulation - Detectors - Forecasting - Image processing - Imaging systems - Kalman filters - Pattern recognition - Signal processing - Spacecraft equipment

Uncontrolled terms:Coverage area - Geometric shape - High reliability - Image block processing - Image blocks - In-orbit - Micro spacecrafts - Multi-thread - Multitarget - Prediction algorithms  - Realtime processing - Small size - Space observations - Space targets - Theoretical calculations - Working conditions

Classification code:746 Imaging Techniques - 751.1 Acoustic Waves - 912.2 Management - 741.1 Light/Optics - 914 Safety Engineering - 922.2 Mathematical Statistics - 932.1.1 Particle Accelerators - 921 Mathematics - 741 Light, Optics and Optical Devices - 703.2 Electric Filters - 716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 655.1 Spacecraft, General - 723 Computer Software, Data Handling and Applications - 723.5 Computer Applications - 731.1 Control Systems - 723.2 Data Processing and Image Processing

DOI:10.1007/978-3-642-10546-3_6

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 4>

 

Accession number:20093112231233

Title:Optimal design of multichannel fiber bragg grating filters with small dispersion and low index modulation

Authors:Gong, Yongkang (1); Liu, Xueming (1); Wang, Leiran (1); Hu, Xiaohong (1); Lin, Aoxiang (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Gong, Y.

Source title:Journal of Lightwave Technology

Abbreviated source title:J Lightwave Technol

Volume:27

Issue:15

Issue date:August 1, 2009

Publication year:2009

Pages:3235-3240

Language:English

ISSN:07338724

CODEN:JLTEDG

Document type:Journal article (JA)

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:We have proposed an effective method to synthesize and optimize multichannel fiber Bragg grating filters (MCFBGFs). The novel method contains two steps, i.e., the discrete layer peeling algorithm generates the excellent initial guess values and, successively, the nonlinear least squares method reconstructs and optimizes the expected fiber Bragg grating parameters from the initial guess in the previous step. Design examples demonstrate that the proposed method has unique merits to optimize the reflectivity and dispersion of MCFBGFs and effectively reduce their index modulation simultaneously. &copy; 2009 IEEE.

Number of references:33

Main heading:Fibers

Controlled terms:Dispersions - Fiber Bragg gratings - Fiber optic components - Fiber optic sensors - Modulation - Optical filters - Optimization - Signal filtering and prediction

Uncontrolled terms:Discrete layers - Fiber grating synthesis - Index modulation - Index modulation reduction - Initial guess - Low index - Multi-channel fiber bragg grating - Multichannel fiber Bragg grating filters (MCFBGFs) - Nonlinear least squares methods - Novel methods  - Optimal design - Optimization method - Small dispersion

Classification code:741.3 Optical Devices and Systems - 801.3 Colloid Chemistry - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 921.5 Optimization Techniques - 951 Materials Science - 741.1.2 Fiber Optics - 716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 717 Optical Communication - 717.2 Optical Communication Equipment - 718 Telephone Systems and Related Technologies; Line Communications - 731.1 Control Systems - 732.2 Control Instrumentation

DOI:10.1109/JLT.2009.2015339

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 5>

 

Accession number:20094812500418

Title:Characteristic research of photoconductive antenna for broadband THz generation

Authors:Xue, Bing (1); Fan, Wen-Hui (1); Yang, Jian (1); Liu, Hai-Liang (1); Zhang, Tong-Yi (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Xue, B.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7385

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Terahertz and High Energy Radiation Detection Technologies and Applications

Issue date:2009

Publication year:2009

Pages:73851U

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476661

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:78571

Sponsor:Photoelectric Technology Professional Committee; Chinese Society of Astronautics

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:Photoconductive effect based on femtosecond laser pulses to generate terahertz (THz) pulses has been analyzed, and broadband THz radiation has been detected effectively by using the free space electro-optic sampling (FE-EOS). Furthermore, THz pulses generated by the home-made photoconductive antenna and transmitted through the air have been detected by the THz time domain spectroscopy (THz-TDS) system, and the influences under different conditions employed on photoconductive antenna for THz generation have been measured and discussed. &copy; 2009 SPIE.

Number of references:7

Main heading:Pulsed laser applications

Controlled terms:Antennas - High energy physics - Lasers - Microwave antennas - Photoconductivity - Pulse generators - Ultrashort pulses

Uncontrolled terms:Broadband THz radiation - Electrooptic sampling - Femto-second laser - Femtosecond laser pulse - Free space - Optical rectifications - Photoconductive antennas - Photoconductive effect - Tera Hertz - Terahertz pulse  - THz generation - THz pulse - THz time domain spectroscopy

Classification code:932.1 High Energy Physics - 744.9 Laser Applications - 744.1 Lasers, General - 741.1 Light/Optics - 716 Telecommunication; Radar, Radio and Television - 713.4 Pulse Circuits - 701.1 Electricity: Basic Concepts and Phenomena

DOI:10.1117/12.835723

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 6>

 

Accession number:20091512025464

Title:The estimation of charge footprint size of ultraviolet photon counting imaging detector with induction readout

Authors:Zhang, Xinghua (1); Zhao, Baosheng (1); Zhao, Feifei (1); Liu, Yong'An (1); Miao, Zhenhua (1); Zhu, Xiangping (1); Yan, Qiurong (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 710119 Xi'an, China; (2) Graduate University, Chinese Academy of Sciences, 100039 Beijing, China

Corresponding author:Zhang, X.(xinghua146@yahoo.com.cn)

Source title:Review of Scientific Instruments

Abbreviated source title:Rev. Sci. Instrum.

Volume:80

Issue:3

Issue date:2009

Publication year:2009

Article number:033101

Language:English

ISSN:00346748

CODEN:RSINAK

Document type:Journal article (JA)

Publisher:American Institute of Physics, 2 Huntington Quadrangle, Suite N101, Melville, NY 11747-4502, United States

Abstract:The structure and work principle of an ultraviolet photon counting imaging detector based on wedge and strip anode with induction readout mode are introduced. Two methods of estimating the charge footprint size are presented. One way is theoretical calculation and simulation. The physical course of electrons is simulated from the microchannel plate output side to the readout anode. The calculated results show that the final charge footprint size is sensitive to the thickness of ceramic and not sensitive to the charge footprint size on the Ge layer. The other way is experimental image estimation. The final charge footprint size can be estimated according to the position where the light line of resolution board image begins to bend. Both methods show that the charge footprint size is sensitive to the ceramic substrate. The two methods are simple and effective for estimation of charge footprint size of photon counting imaging detector with induction readout. &copy; 2009 American Institute of Physics.

Number of references:18

Main heading:Electromagnetic induction

Controlled terms:Ceramic materials - Detectors - Estimation - Germanium - Photons

Uncontrolled terms:Ceramic substrates - Image estimations - Imaging detectors - Light lines - Micro channel plates - Photon-counting - Theoretical calculations - Ultraviolet photons - Work principles

Classification code:931.3 Atomic and Molecular Physics - 921 Mathematics - 914 Safety Engineering - 812.1 Ceramics - 804 Chemical Products Generally - 741.1 Light/Optics - 701.2 Magnetism: Basic Concepts and Phenomena - 701.1 Electricity: Basic Concepts and Phenomena - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals

DOI:10.1063/1.3090891

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 7>

 

Accession number:20095012544236

Title:Development of diode lasers for pumping high power ultrashort pulse lasers

Authors:Liu, Xingsheng (1); Wang, Yishan (1); Wang, Jingwei (1); Zhang, Entao (1); Xiong, Lingling (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.

Source title:Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest

Abbreviated source title:Pacif Rim Conf Lasers Electro Opt CLEO Tech Dig

Monograph title:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Issue date:2009

Publication year:2009

Article number:5292308

Language:English

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Conference date:August 30, 2009 - September 3, 2009

Conference location:Shanghai, China

Conference code:78645

Sponsor:Chinese Institute of Electronics; Chinese Optical Society; Chinese Physical Society; National Natural Science Foundation of China

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

DOI:10.1109/CLEOPR.2009.5292308

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 8>

 

Accession number:20095012544084

Title:Polarization and wavelength channel drop filters based on two-dimensional photonic crystal

Authors:Zhang, Wenfu (1); Liu, Jihong (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100049, China; (3) Department of Electronic and Information Engineering, Xi'an Institute of Post and Telecommunications, Xi'an 710061, China

Corresponding author:Zhang, W.(wfu.zhang@gmail.com)

Source title:Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest

Abbreviated source title:Pacif Rim Conf Lasers Electro Opt CLEO Tech Dig

Monograph title:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Issue date:2009

Publication year:2009

Article number:5292143

Language:English

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Conference date:August 30, 2009 - September 3, 2009

Conference location:Shanghai, China

Conference code:78645

Sponsor:Chinese Institute of Electronics; Chinese Optical Society; Chinese Physical Society; National Natural Science Foundation of China

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:A new type of device named polarization and wavelength channel drop filter (PW-CDF) designed by two-dimensional photonic crystal is proposed. The PW-CDF has compound functions of polarization beam splitter (PBS) and CDF at the operating wavelength. &copy; 2009 IEEE.

Number of references:7

Main heading:Crystal filters

Controlled terms:Optical filters - Photonic crystals - Polarization - Two dimensional

Uncontrolled terms:Operating wavelength - Polarization beam splitters - Two-dimensional photonic crystals - Wavelength channels

Classification code:933.1 Crystalline Solids - 902.1 Engineering Graphics - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 723.5 Computer Applications - 717.2 Optical Communication Equipment - 711.1 Electromagnetic Waves in Different Media - 703.2 Electric Filters - 701.1 Electricity: Basic Concepts and Phenomena

DOI:10.1109/CLEOPR.2009.5292143

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 9>

 

Accession number:20095112566694

Title:Thermal effect in high-power Yb<sup>3+</sup>-doped photonic crystal fiber lasers

Authors:Han, Xiaoming (1); Yang, Dexing (1); Zhao, Jianlin (1); Hou, Jianping (1); Duan, Kailiang (2); Wang, Yishan (2)

Author affiliation:(1) Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China; (2) State Key Laboratory of Transient Optics and Photonics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China

Corresponding author:Zhao, J.(jlzhao@nwpu.edu.cn)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:11

Issue date:November 2009

Publication year:2009

Pages:2822-2826

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:Temperature and thermal stress of high-power photonic crystal fiber (PCF) lasers were numerically simulated and analyzed. Equivalent thermal conductivity was introduced to simplify the structure of photonic crystal fiber, and then three dimensional temperature field model of photonic crystal fiber laser was established. By using the finite element method, the distributions of the temperature in fiber and the thermal stress in end-surface of fiber were numerically simulated and analyzed with natural and forced convection heat transfer, respectively. The results show that the selected PCF can support the pumped power of 1000 W under forced convection heat transfer, but improving the parameters of fiber is required to further enhance the output power by supporting higher pump power.

Number of references:13

Main heading:Photonic crystal fibers

Controlled terms:Cantilever beams - Crystal structure - Crystal whiskers - Fiber lasers - Fibers - Finite element method - Forced convection - Heat exchangers - Laser pulses - Lasers  - Nonlinear optics - Photonic crystals - Simulators - Thermal effects - Thermal stress - Thermoelasticity - Three dimensional - Ytterbium

Uncontrolled terms:Equivalent thermal - Forced convection heat transfer - High-power - In-fiber - Numerical simulation - Output power - Pump power - Three dimensional temperature fields

Classification code:817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 801.4 Physical Chemistry - 741.1.1 Nonlinear Optics - 744.4 Solid State Lasers - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 744.1 Lasers, General - 819.4 Fiber Products - 902.1 Engineering Graphics - 951 Materials Science - 933.1.1 Crystal Lattice - 933.1 Crystalline Solids - 931.2 Physical Properties of Gases, Liquids and Solids - 931.1 Mechanics - 921.6 Numerical Methods - 723.5 Computer Applications - 631.1 Fluid Flow, General - 621 Nuclear Reactors - 616.1 Heat Exchange Equipment and Components - 408.2 Structural Members and Shapes - 547.2 Rare Earth Metals - 531 Metallurgy and Metallography - 421 Strength of Building Materials; Mechanical Properties - 531.2 Metallography - 641 Heat and Mass Transfer; Thermodynamics - 641.2 Heat Transfer - 671 Naval Architecture - 662.1 Automobiles - 657.1 Solar Energy and Phenomena - 655.2 Satellites - 654.1 Rockets and Missiles - 641.3 Mass Transfer

DOI:10.3788/CJL20093611.2822

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 10>

 

Accession number:20101412821586

Title:Modified SPIHT based image compression algorithm for hardware implementation

Authors:Wang, Jianjun (1); Liu, Bo (2)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing, China

Corresponding author:Wang, J.(dayu504@126.com)

Source title:2nd International Workshop on Computer Science and Engineering, WCSE 2009

Abbreviated source title:Int. Workshop Comput. Sci. Eng., WCSE

Volume:2

Monograph title:2nd International Workshop on Computer Science and Engineering, WCSE 2009

Issue date:2009

Publication year:2009

Pages:572-576

Article number:5403201

Language:English

ISBN-13:9780769538815

Document type:Conference article (CA)

Conference name:2nd International Workshop on Computer Science and Engineering, WCSE 2009

Conference date:October 28, 2009 - October 30, 2009

Conference location:Qingdao, China

Conference code:79686

Sponsor:Qingdao University of Science and Technology; Peoples' Friendship University of Russia; Nanchang HangKong University; National Chung Hsing University; Hunan Agricultural University

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:Among all wavelet transform and zero-tree quantization based image coding algorithms, set partitioning in hierarchical trees (SPIHT) is well known for its simplicity and efficiency. However, the use of three lists causes a high, variable and data dependant memory requirement, therefore the original SPIHT dose not suit for hardware implementation. In this paper, a Modified SPIHT (MSPIHT) method suitable for image compression's hardware implementation is proposed. Through using two state mark bitmaps to replace three lists of SPIHT, MSPIHT saves memory space and avoids memory dynamic management. Furthermore according to using an array to store the maximum value of zerotree set's coefficients as well as merging the sorting pass and refinement pass as one scan, MSPIHT also enhances the algorithm's iteration efficiency. Experimental results show that this MSPIHT quantization method is simple, efficient, resource saving, and is suitable for real time and low memory implementation. &copy; 2009 IEEE.

Number of references:8

Main heading:Image coding

Controlled terms:Computer hardware - Computer science - Digital image storage - Hardware - Image compression - Visual communication - Wavelet transforms

Uncontrolled terms:Bit maps - Dynamic management - Hardware implementations - Image coding algorithms - Image compression algorithms - Low memory - Maximum values - Memory requirements - Memory space - Real time  - Resource savings - Set partitioning in hierarchical tree - Tree quantization - Two-state - Zerotrees

Classification code:741.3 Optical Devices and Systems - 741 Light, Optics and Optical Devices - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 722.4 Digital Computers and Systems - 921.3 Mathematical Transformations - 722.1 Data Storage, Equipment and Techniques - 721 Computer Circuits and Logic Elements - 717.1 Optical Communication Systems - 716.4 Television Systems and Equipment - 605 Small Tools and Hardware - 722 Computer Systems and Equipment

DOI:10.1109/WCSE.2009.878

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 11>

 

Accession number:20093812313294

Title:Study on the measurement of image motion between sequential images based on optical correlator

Authors:Fan, Chao (1); Li, Ying-Cai (2); Liang, Yi-Tao (1); Sun, Ning-Ning (1)

Author affiliation:(1) College of information Science and Engineering, Henan University of Technology, ZhengZhou, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China

Corresponding author:Fan, C.(anfan2003@gmail.com)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7283

Monograph title:4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment

Issue date:2009

Publication year:2009

Article number:72831H

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819475435

Document type:Conference article (CA)

Conference name:4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment

Conference date:November 19, 2008 - November 21, 2008

Conference location:Chengdu, China

Conference code:76829

Sponsor:The Chinese Optical Society (COS); CAS, The Institute of Optics and Electronics (IOE); State Key Laboratory of Optical Technology for Microfabrication; Sichuan Optical Society (SOS)

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:To measure sub-pixel image motion of sequential images which is captured at high frame rate, the joint transform correlator (JTC) is used. The relative image motion of two adjacent images can be measured by inputting these images into JTC. The principle of this method is described, photo-electrical devices are selected, and an experimental platform is built. Based on which, the measurement performances of JTC are researched, including the influence of scene structure on measurement accuracy, effect of the size of input image on measurement accuracy, and the measurement range of the image motion of JTC. After doing these, the over-all properties of JTC is verified by using a sample which containes 50 different random image motions. The results show that, the JTC can measure sub-pixel image motion of two adjacent images entirely, and the accuracy is not variable with the contents of input images. The measurement error submits to normal distribution, which means zero and RMS is no more than 0.12 pixels under conspicuous level equal to 0.05. Lastly, the source of error which deteriorates measurement accuracy is analyzed simply. &copy; 2009 SPIE.

Number of references:7

Main heading:Pixels

Controlled terms:Information fusion - Measurement theory - Normal distribution - Optical testing - Technology

Uncontrolled terms:Electrical devices - Experimental platform - High frame rate - Image motion - Input image - Joint Transform Correlator - Joint transform correlators - Measurement accuracy - Measurement range - Optical correlators  - Random image - Scene structure - Sequential images - Sub pixels - Sub-pixel

Classification code:941.4 Optical Variables Measurements - 922.1 Probability Theory - 922 Statistical Methods - 903.1 Information Sources and Analysis - 901 Engineering Profession - 742.2 Photographic Equipment - 741.3 Optical Devices and Systems - 723.5 Computer Applications - 722.2 Computer Peripheral Equipment

DOI:10.1117/12.828667

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 12>

 

Accession number:20094012350957

Title:Generation of continuously tunable Terahertz-wave radiation exploited by stimulated polariton scattering

Authors:Xia, C.-P. (1); Li, X.-F. (2); Liu, H.-J. (1); Huang, N. (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Department of Applied Mathematics and Physics of xi'An, Institute of Post and Telecom, Xi'an 710121, China; (3) Graduate School of Chinese Academy of Sciences, Beijing, China

Corresponding author:Xia, C.-P.

Source title:Laser Physics

Abbreviated source title:Laser Phys.

Volume:19

Issue:9

Issue date:September 2009

Publication year:2009

Pages:1897-1903

Language:English

ISSN:1054660X

E-ISSN:15556611

Document type:Journal article (JA)

Publisher:Maik Nauka-Interperiodica Publishing, Profsoyuznaya Ul 90, Moscow, 117997, Russia

Abstract:The characteristics of a coherent tunable terahertz-wave source have been experimentally investigated in detail. By using a difference frequency generation as a result of stimulated Raman scattering by polaritons in MgO:LiNbO<inf>3</inf> crystals, the signal wave was continuously tuned in the range of 1.069-1.075 &mu;m, which corresponded to a terahertz-wave in the wide range from 227 to 104 &mu;m (1.3 to 2.9 THz). The highest output signal pulse energy at the pumping level of 44 mJ/pulse was 1.8 mJ/pulse with 20 mW seeder injection, and the terahertz peak power was 139 mW at the wavelength of 143 &mu;m. This source has the advantages of simple alignment, simplicity of tuning, and compactness that makes the device more attractive. &copy; 2009 Pleiades Publishing, Ltd.

Number of references:32

Main heading:Optical frequency conversion

Controlled terms:Phonons - Photons - Quantum theory

Uncontrolled terms:Difference-frequency generation - MgO:LiNbO - Output signal - Peak power - Polariton scattering - Polaritons - Signal waves - Tera Hertz - Wave radiation

Classification code:741.1 Light/Optics - 741.1.1 Nonlinear Optics - 751.1 Acoustic Waves - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics

DOI:10.1134/S1054660X09170228

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 13>

 

Accession number:20093512273358

Title:Observation of the near transform-limited high-resolution tunable far-ultraviolet light

Authors:Huai-Bin, Zheng (1); Yan-Peng, Zhang (1); Zhi-Qiang, Nie (1); Chang-Biao, Li (1); Jian-Ping, Song (1); Chuang-She, Li (1); Ke-Qing, Lu (2)

Author affiliation:(1) Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China; (2) State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China

Corresponding author:Yan-Peng, Z.(ypzhang@mail.xjtu.edu.cn)

Source title:Chinese Physics B

Abbreviated source title:Chin. Phys.

Volume:18

Issue:7

Issue date:2009

Publication year:2009

Pages:2729-2733

Language:English

ISSN:16741056

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:This paper studies the near transform-limited high-resolution tunable far-ultraviolet light which is generated by narrow-band tunable light both theoretically and experimentally. It shows the theoretical work about conversion efficiency of sum-frequency, which is restricted by phase-matching angle, walk-off angle and phase distortion and so on, and sets experiment to check this work successfully. Also the origin of chirp of dye laser is analysed. &copy; 2009 Chin. Phys. Soc. and IOP Publishing Ltd.

Number of references:11

Main heading:Light transmission

Controlled terms:Conversion efficiency - Dye lasers - Lasers - Optical frequency conversion - Ultraviolet radiation

Uncontrolled terms:Chirp effect - High-resolution - Narrow bands - Narrow-band - Near transform-limited - Phase distortions - Phase matching angle - Sum frequency - Ultra-violet light - Walk-off

Classification code:525.5 Energy Conversion Issues - 741.1 Light/Optics - 741.1.1 Nonlinear Optics - 744 Lasers - 744.1 Lasers, General

DOI:10.1088/1674-1056/18/7/017

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 14>

 

Accession number:20090711909191

Title:Alternating copolymers based on perylene bisimide and oligo(p-phenylene ethynylene) units: Synthesis, characterization, and photoinduced energy and electron transfer processes of a new class of donor-acceptor systems

Authors:Wang, Hong-Yu (1); Pu, Kan-Yi (1); Huang, Shu (1); Liu, Feng (1); Peng, Bo (1); Wei, Wei (1)

Author affiliation:(1) State Key Laboratory for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and precision Mechanics, Chinese Academy of Science (CAS), Xi'an, Shaanxi 710119, China

Corresponding author:Peng, B.(bpeng@fudan.edu.cn)

Source title:Reactive and Functional Polymers

Abbreviated source title:React Funct Polym

Volume:69

Issue:2

Issue date:February 2009

Publication year:2009

Pages:117-123

Language:English

ISSN:13815148

CODEN:RFPOF6

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:A Hagihara-Sonogashira cross-coupling reaction has been used to synthesize a new copolymer consisting of electron-accepting perylene bisimide (PBI) and electron-donating oligo(p-phenylene ethynylene) (OPE) units. Photoinduced singlet energy transfer and charge separation have been studied in solution via steady-state absorption, excitation, fluorescence, and theoretical calculations. The electron transfer from the OPE excited state competes with a singlet energy transfer state to the PBI unit. The results show that the excitation of the OPE unit in the polymer results in energy and electron transfers, while the excitation of the PBI unit in the polymer only result in electron transfer. &copy; 2008 Elsevier Ltd. All rights reserved.

Number of references:24

Main heading:Polyethylenes

Controlled terms:Aromatic compounds - Copolymerization - Electron transitions - Electrons - Energy transfer - Organic polymers - Polymers - Separation

Uncontrolled terms:Alternating copolymers - Charge separation - Donor-acceptor systems - Electron transfer process - Electron transfers - Electron-accepting - Electron-donating - New class - Oligo(p-phenylene ethynylene) - Perylene bisimide  - Photo-induced - Photoinduced energies - Sonogashira cross-coupling reactions - Steady-state absorptions - Theoretical calculations

Classification code:815.2 Polymerization - 815.1.1 Organic Polymers - 815.1 Polymeric Materials - 804.1 Organic Compounds - 931.3 Atomic and Molecular Physics - 802.3 Chemical Operations - 701.1 Electricity: Basic Concepts and Phenomena - 641.2 Heat Transfer - 525.4 Energy Losses (industrial and residential) - 711.1 Electromagnetic Waves in Different Media

DOI:10.1016/j.reactfunctpolym.2008.11.008

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 15>

 

Accession number:20101212792274

Title:A moving multi-target capture algorithm for a celestial background

Authors:Yu, Wei-Wei (1); Shao, Xiu-Juan (1); Hu, Bing-Liang (1); Zhang, Lu (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy Science, Xi'an, China; (2) Graduate Student College, Chinese Academy Science, Xi'an, China

Corresponding author:Yu, W.-W.(yuweiwei@opt.ac.cn)

Source title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Abbreviated source title:Proc. - Int. Conf. Inf. Eng. Comput. Sci., ICIECS

Monograph title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Issue date:2009

Publication year:2009

Article number:5364677

Language:English

ISBN-13:9781424449941

Document type:Conference article (CA)

Conference name:2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Conference date:December 19, 2009 - December 20, 2009

Conference location:Wuhan, China

Conference code:79561

Sponsor:Wuhan University; Huazhong Normal University; Wuhan University of Technology; National Technology University of Ukraine; Columbia University

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:The main task of MTD (micro-spacecraft target detector) is to identify the targets in the celestial space. There are movements relative to targets, background and MTD in the space. In order to capture the targets intermixed in the celestial background, a new method is introduced. Firstly, the effective background dots in the frame are labeled and those pixels firstly labeled in their dots remain while others are made zero; secondly, the image registration is achieved between the two first-labeled images which have been compressed. After matching, the firstlabeled difference algorithm is used to wipe off the first-labeled pixels which represent noise points and stars. Lastly, according to the values of those non-zero pixels that remain, we obtain the targets. Based on theoretical calculations and computer simulation, this method can reduce the calculation amount significantly. The multi-target capture can be timely achieved. &copy;2009 IEEE.

Number of references:12

Main heading:Targets

Controlled terms:Algorithms - Computer science - Computer simulation - Image registration - Pixels

Uncontrolled terms:Compression - Difference algorithms - First-labeled pixels - Labeled images - Main tasks - Micro spacecrafts - Multitarget - Target detectors - Theoretical calculations

Classification code:932.1.1 Particle Accelerators - 921 Mathematics - 742.2 Photographic Equipment - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 722.2 Computer Peripheral Equipment - 722 Computer Systems and Equipment - 721 Computer Circuits and Logic Elements

DOI:10.1109/ICIECS.2009.5364677

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 16>

 

Accession number:20093212244618

Title:Dynamic characteristic of FOG and its structure optimization

Authors:Liu, Ying (1); Li, Yan (1); Xu, Jin-Tao (2)

Author affiliation:(1) Faculty of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of Chinese Acad. of Sci., Xi'an 710119, China

Corresponding author:Liu, Y.(ly676@163.com)

Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering

Abbreviated source title:Hongwai yu Jiguang Gongcheng

Volume:38

Issue:3

Issue date:June 2009

Publication year:2009

Pages:520-524

Language:Chinese

ISSN:10072276

Document type:Journal article (JA)

Publisher:Editorial Board of Infrared and Laser Engineering, P.O.Box 225-32, Tianjin, 300192, China

Abstract:According to the working environment and structural characteristics of fiber optical gyroscope (FOG), the sensitivity of the natural frequency of structural parts to its structural parameter was analyzed using the finite element method. A small and light design of some type FOG was carried out without reducing the natural frequency, based on the influence of the structural geometry on the natural frequency. The volume of the improved design reduced 49.56%, its mass lighted 37%, and its one order resonance frequency increased 19.1%. Optimization of the assembly process can also improve the performance of FOG under vibration environment. Shortest electronic circuits using insulator and no free pigtail fiber for all optical element device were implemented, and the reliability and consistency of FOG were improved through welding spot protection. Experiment verifies that the precision of improved FOG in vibration condition approaches to that in static environment.

Number of references:7

Main heading:Finite element method

Controlled terms:Electron tubes - Fiber optics - Fibers - Fog - Gyroscopes - Natural frequencies - Optical materials - Structural optimization

Uncontrolled terms:All-optical - Assembly process - Dynamic characteristics - Electronic circuits - Fiber optic gyro - Fiber optical gyroscopes - Finite element - Parameter sensitivity - Pigtail fibers - Resonance frequencies  - Static environment - Structural characteristics - Structural geometry - Structural parameter - Structural parts - Structure optimization - Vibration condition - Vibration environment - Working environment

Classification code:943.1 Mechanical Instruments - 921.6 Numerical Methods - 921.5 Optimization Techniques - 819.4 Fiber Products - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 751.1 Acoustic Waves - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 741.1 Light/Optics - 714.1 Electron Tubes - 711.1 Electromagnetic Waves in Different Media - 443.1 Atmospheric Properties

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 17>

 

Accession number:20140817362449

Title:Development of diode lasers for pumping high power ultrashort pulse lasers

Authors:Li, Xingsheng (1); Wang, Yishan (1); Wang, Jingwei (1); Zhang, Entao (1); Xiong, Lingling (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Source title:Optics InfoBase Conference Papers

Abbreviated source title:Opt.InfoBase Conf. Papers

Monograph title:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

Issue date:2009

Publication year:2009

Language:English

E-ISSN:21622701

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

Conference date:August 30, 2009  -  September 3, 2009

Conference location:Shanghai, China

Conference code:102747

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 18>

 

Accession number:20091011942728

Title:Reply to "Comment on 'The Imbert-Fedorov shift of paraxial light beams'"

Authors:Li, Chun-Fang (1)

Author affiliation:(1) Department of Physics, Shanghai University, 99 Shangda Road, Baoshan District, 200444 Shanghai, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, CAS, 710119 Xi'an, China

Corresponding author:Li, C.-F.(cfli@shu.edu.cn)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:8

Issue date:April 15, 2009

Publication year:2009

Pages:1523-1525

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:This is a reply to the Comment by Bliokh on our paper that appeared in Opt. Commun. 281 (2008) 3427. After a brief introduction of the representation theory of vector electromagnetic beams advanced in a recent paper, I point out that the Imbert-Fedorov effect is the evidence of the change of the beam parameter &Theta; and the polarization ellipticity &sigma; caused by the reflection or transmission process in the linear approximation. Then I explain that it is because the linear approximation of the incident beam that we used in our paper had been assumed in previous works that we reproduced their results. &copy; 2009 Elsevier B.V. All rights reserved.

Number of references:18

Main heading:Paper

Uncontrolled terms:Beam parameters - Electromagnetic beams - Incident beams - Linear approximations - Paraxial light beams - Representation theories

Classification code:811.1 Pulp and Paper

DOI:10.1016/j.optcom.2008.12.080

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 19>

 

Accession number:20103113112787

Title:Design of a compact photonic-crystal-based polarization channel drop filter

Authors:Zhang, Wenfu (1); Liu, Jihong (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100049, China; (3) Department of Electronic and Information Engineering, Xi'An Institute of Post and Telecommunications, Xi'an 710061, China

Corresponding author:Zhang, W.(wfu.zhang@gmail.com)

Source title:IEEE Photonics Technology Letters

Abbreviated source title:IEEE Photonics Technol Lett

Volume:21

Issue:11

Issue date:June 1, 2009

Publication year:2009

Pages:739-741

Language:English

ISSN:10411135

CODEN:IPTLEL

Document type:Journal article (JA)

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:We design a compact photonic-crystal-based polarization channel drop filter (PhC-PCDF) using the triangular lattice air holes PhC, which would be an essential device in future integrated polarization and wavelength-division- multiplexed (PWDM) system. The PhC-PCDF contains two line waveguides and a resonating system between them. In the line waveguide, the transverse-electric (TE) polarization and the transverse-magnetic (TM) are guided by photonic bandgap effect and total internal reflection effect, respectively. By resonating the system, a narrow bandwidth TE polarization is dropped from one waveguide to the other, leaving other components of the PWDM signal without any disturbance. The transmission efficiency for TM polarization and TE polarization are both over 95%. The quality factor of the TE PCDF is about 1800. The whole size of the designed PhC-PCDF can be 20a &times; 12a. &copy; 2009 IEEE.

Number of references:14

Main heading:Polarization

Controlled terms:Drops - Multiplexing equipment - Optical waveguides - Photonic crystals - Photonic devices - Refractive index - Waveguides - Wavelength division multiplexing

Uncontrolled terms:Air holes - Narrow bandwidth - Photonic bandgap effect - Polarization channels - Quality factors - Resonating systems - TM polarization - Total internal reflections - Transmission efficiency - Transverse-electric polarizations  - Triangular lattice - Two-line

Classification code:718 Telephone Systems and Related Technologies; Line Communications - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744 Lasers - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 933.1 Crystalline Solids - 717.2 Optical Communication Equipment - 443.1 Atmospheric Properties - 443.2 Meteorological Instrumentation - 701.1 Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 714.3 Waveguides - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication

DOI:10.1109/LPT.2009.2017503

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 20>

 

Accession number:20092112092532

Title:Sol-gel matrix modified microstructured optical fibre towards a fluoride sensitive optical probe

Authors:Yang, Xinghua (1); Wang, Jian (1); Wang, Lili (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Information Road 17, Xi'an, Shannxi 710119, China

Corresponding author:Wang, L.(Wangll@opt.ac.cn)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:13

Issue date:July 1, 2009

Publication year:2009

Pages:2502-2505

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:In this article, we report an optical fluoride probe based on microstructured polymer optical fibers (MPOFs) which is modified with morin-Al complex doped silica gel film. This probe is fabricated by sol-gel fluxion coating process. Sol solution doped with morin-Al is directly inhaled into array holes of MPOF and then forms morin-Al-gel matrix film in them. The sensing probe shows different fluorescence intensity to different fluoride ion concentrations in the aqueous solution. The range of response is 5-50 mmol/L, under the condition of pH 4.6. Crown Copyright &copy; 2009.

Number of references:29

Main heading:Sol-gel process

Controlled terms:Aluminum - Antibodies - Doping (additives) - Fiber optics - Fibers - Gelation - Optical fiber fabrication - Optical fibers - Optical materials - Polymers  - Probes - Silica - Silica gel - Sol-gels - Sols

Uncontrolled terms:Al complexes - Aqueous solutions - Coating process - Fluorescence intensities - Fluoride ions - Fluoride sensing - Gel matrixes - Microstructured polymer optical fiber - Optical fibres - Optical probes  - Optical sensing - Probe-based - Sensing probes - Silica gel films - Sol solutions - Sol-gel matrixes

Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 804.2 Inorganic Compounds - 812 Ceramics, Refractories and Glass - 812.3 Glass - 813.1 Coating Techniques - 815.1 Polymeric Materials - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 804 Chemical Products Generally - 461.9.1 Immunology - 482.2 Minerals - 541.1 Aluminum - 712.1 Semiconducting Materials - 802.3 Chemical Operations - 714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 801 Chemistry - 801.3 Colloid Chemistry - 741.1.2 Fiber Optics

DOI:10.1016/j.optcom.2009.03.027

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 21>

 

Accession number:20095012544486

Title:Linear-cavity mode-locked fiber laser based on semiconductor optical amplifier

Authors:Yan, Shuangyi (1); Zhang, Jian-Guo (3); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100039, China; (3) Department of Electrical, Computer and Communications Engineering, London South Bank University, 103 Borough Road, London SE1 0AA, United Kingdom

Corresponding author:Yan, S.(nechoyan@gmail.com)

Source title:Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest

Abbreviated source title:Pacif Rim Conf Lasers Electro Opt CLEO Tech Dig

Monograph title:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Issue date:2009

Publication year:2009

Article number:5292569

Language:English

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Conference date:August 30, 2009 - September 3, 2009

Conference location:Shanghai, China

Conference code:78645

Sponsor:Chinese Institute of Electronics; Chinese Optical Society; Chinese Physical Society; National Natural Science Foundation of China

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:A SOA-based linear cavity mode-locked fiber laser is proposed with an external pulse sequence in this paper. 4.8ps pulse sequence at 10GHz is achieved successfully with time jitter about 60fs in a simple configuration. &copy; 2009 IEEE.

Number of references:4

Main heading:Semiconductor lasers

Controlled terms:Fiber lasers - Jitter - Lasers - Optoelectronic devices - Pulsed laser applications

Uncontrolled terms:Cavity mode - Linear cavity - Mode-locked laser - Pulse sequence - Time jitters

Classification code:744.9 Laser Applications - 744.4.1 Semiconductor Lasers - 744.4 Solid State Lasers - 744.1 Lasers, General - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 722.3 Data Communication, Equipment and Techniques - 718 Telephone Systems and Related Technologies; Line Communications - 717.2 Optical Communication Equipment - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 714.2 Semiconductor Devices and Integrated Circuits - 712.1 Semiconducting Materials

DOI:10.1109/CLEOPR.2009.5292569

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 22>

 

Accession number:20093612284563

Title:Temporal resolution technology of a soft X-ray picosecond framing camera based on Chevron micro-channel plates gated in cascade

Authors:Yang, Wenzheng (1); Bai, Yonglin (1); Liu, Baiyu (1); Bai, Xiaohong (2); Zhao, Junping (2); Qin, Junjun (2)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China; (2) Key Laboratory of Ultra-fast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China

Corresponding author:Yang, W.(ywz@opt.ac.cn)

Source title:Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Abbreviated source title:Nucl Instrum Methods Phys Res Sect A

Volume:608

Issue:2

Issue date:September 11, 2009

Publication year:2009

Pages:291-296

Language:English

ISSN:01689002

CODEN:NIMAER

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:We describe a soft X-ray picosecond framing camera (XFC) based on Chevron micro-channel plates (MCPs) gated in cascade for ultra-fast process diagnostics. The micro-strip lines are deposited on both the input and the output surfaces of the Chevron MCPs and can be gated by a negative (positive) electric pulse on the first (second) MCP. The gating is controlled by the time delay T<inf>d</inf> between two gating pulses. By increasing T<inf>d</inf>, the temporal resolution and the gain of the camera are greatly improved compared with a single-gated MCP-XFC. The optimal T<inf>d</inf>, which results in the best temporal resolution, is within the electron transit time and transit time spread of the MCP. Using 250 ps, &plusmn;2.5 kV gating pulses, the temporal resolution of the double-gated Chevron MCPs camera is improved from 60 ps for the single-gated MCP-XFC to 37 ps for T<inf>d</inf>=350 ps. The principle is presented in detail and accompanied with a theoretic simulation and experimental results. &copy; 2009 Elsevier B.V. All rights reserved.

Number of references:13

Main heading:Image storage tubes

Controlled terms:Cameras - Motion picture cameras

Uncontrolled terms:Electric pulse - Electron transit time - Framing Camera - Gating pulse - Micro channel plate - Micro-channel plate (MCP) - Microstrip-line - Picoseconds - Soft X-ray - Soft X-ray framing camera  - Temporal resolution - Transit time spread - Ultra-fast - Ultra-fast diagnostics

Classification code:714.1 Electron Tubes - 742.2 Photographic Equipment

DOI:10.1016/j.nima.2009.06.110

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 23>

 

Accession number:20092912204126

Title:Facile synthesis and systematic investigations of a series of novel bent-shaped two-photon absorption chromophores based on pyrimidine

Authors:Li, Lin (1); Tian, Yu-Peng (1); Yang, Jia-Xiang (1); Sun, Ping-Ping (1); Wu, Jie-Ying (1); Zhou, Hong-Ping (1); Zhang, Sheng-Yi (1); Jin, Bao-Kang (1); Xing, Xiao-Juan (3); Wang, Chuan-Kui (3); Li, Ming (4); Cheng, Guang-Hua (4); Tang, Huo-Hong (5); Huang, Wen-Hao (5); Tao, Xu-Tang (2); Jiang, Min-Hua (2)

Author affiliation:(1) Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University, Hefei 230039, China; (2) State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China; (3) Department of Physics, Shandong Normal University, Jinan 250014, China; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China; (5) Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230026, China

Corresponding author:Tian, Y.-P.(yptian@ahu.edu.cn)

Source title:Chemistry - An Asian Journal

Abbreviated source title:Chem. Asian J.

Volume:4

Issue:5

Issue date:May 4, 2009

Publication year:2009

Pages:668-680

Language:English

ISSN:18614728

E-ISSN:1861471X

Document type:Journal article (JA)

Publisher:John Wiley and Sons Ltd, Southern Gate, Chichester, West Sussex, PO19 8SQ, United Kingdom

Abstract:The synthesis, structure, and single- and two-photon spectroscopic properties of a series of pyrimidinebased (bent-shaped) molecules are reported. All these stable heterocyclic compounds are fully characterized, and exhibit intense single- and two-photon excited fluorescence (SPEF and TPEF) over a wide spectral range from blue to red, with the spectral peak position of the SPEF being basically the same as that of the TPEF. The well-conjugated p-systems, observed from the crystalstructure, indicate the charge transfer feature of the ground state. Meanwhile, the theoretical and experimental studies indicate that the charge transfer from donor to acceptor is greatly enhanced in the excited states and the different substituted donor groups on the pyrimidine have a large effect on the optical and electrochemical properties. Based on typical structure data and comprehensive spectral data, the following structure-property relationships can be determined: for such bentshaped chromophores, the absorption and the fluorescence wavelength maximum of the SPEF and TPEF, and twophoton absorption cross sections show a similar trend with increasing electron- donating strength of the corresponding terminal group and the number of branches, while the average bond lengths of the p-linkage and HOMO-LUMO energy levels show an inverse trend. Experimental data and theoretical calculation provide a coherent picture. With these findings, bentshaped quadrupolar chromophores combining peak TPA cross sections (up to 2280 GM), broad TPA bands throughout the whole 700-900 nm range, and high fluorescence quantum yields could, thus, be obtained. Such compounds are of particular interest for TPEF microscopy, as well as optical data storage in the visible and NIR regions. A data recording experiment proved the potential application of these materials. &copy; 2009 Wiley-VCH Verlag GmbH&amp;Co. KGaA, Weinheim.

Number of references:93

Main heading:Optical data storage

Controlled terms:Absorption - Charge transfer - Chromophores - Complexation - Electrochemical properties - Fluorescence - Ion exchange - Light absorption - Luminescence of organic solids - Mass transfer  - Multiphoton processes - Optical data processing - Optical materials - Optical microscopy - Optical properties - Organic polymers - Photons - Structural properties - Sulfur compounds

Uncontrolled terms:Donor groups - Electron-donating - Experimental data - Experimental studies - Facile synthesis - Fluorescence quantum yield - Fluorescence wavelength - Heterocyclic compound - HOMO-LUMO energies - NIR regions  - P systems - Potential applications - Spectral data - Spectral peak positions - Spectroscopic property - Structure data - Structure-property relationships - Systematic investigations - Terminal groups - Theoretical calculations  - TPA cross sections - Two photon - Two-photon absorption - Two-photon absorption chromophores - Two-photon absorption cross section - Two-photon excited fluorescence - Wide spectral range

Classification code:802.2 Chemical Reactions - 802.3 Chemical Operations - 804.1 Organic Compounds - 951 Materials Science - 804.2 Inorganic Compounds - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 815.1.1 Organic Polymers - 801.4.1 Electrochemistry - 744.1 Lasers, General - 408 Structural Design - 641.3 Mass Transfer - 722.1 Data Storage, Equipment and Techniques - 723.2 Data Processing and Image Processing - 741.1 Light/Optics - 741.3 Optical Devices and Systems

DOI:10.1002/asia.200800402

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20091912071663

Title:Principle and analysis of a polarization imaging spectrometer

Authors:Mu, Tingkui (1); Zhang, Chunmin (1); Zhao, Baochang (2)

Author affiliation:(1) School of Science, Xi'an Jiaotong University, Xi'an 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Zhang, C.(zcm@mail.xjtu.edu.cn)

Source title:Applied Optics

Abbreviated source title:Appl. Opt.

Volume:48

Issue:12

Issue date:April 20, 2009

Publication year:2009

Pages:2333-2339

Language:English

ISSN:1559128X

E-ISSN:15394522

CODEN:APOPAI

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:A polarization imaging spectrometer based on a modified Savart polariscope with a moving wedge prism is presented. The principle of the instrument is described, and the optical path difference as a function of the moving wedge prism's moving displacement is calculated and analyzed. It employs a common-path configuration and is not sensitive to the nonuniform variation of moving speed and environmental vibrations. In comparison with the polarization imaging spectrometer based on the Savart polariscope, this spectrometer is a framing instrument rather than a pushbrooming device. Only the transmission of birefringent materials and detector sensitivity limit the available spectral range of such an instrument. &copy; 2009 Optical Society of America.

Number of references:19

Main heading:Spectrometry

Controlled terms:Birefringence - Polariscopes - Polarization - Prisms - Ray tracing - Spectrometers

Uncontrolled terms:Birefringent materials - Common paths - Detector sensitivities - Environmental vibrations - Moving speed - Non-uniform - Optical path differences - Polarization-imaging - Savart polariscopes - Spectral ranges  - Wedge prisms

Classification code:941.3 Optical Instruments - 801 Chemistry - 741.3 Optical Devices and Systems - 941.4 Optical Variables Measurements - 741.1 Light/Optics - 711.1 Electromagnetic Waves in Different Media - 701.1 Electricity: Basic Concepts and Phenomena - 723.5 Computer Applications

DOI:10.1364/AO.48.002333

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093512277734

Title:Host dependence of spectroscopic properties of Dy<sup>3+</sup>- Doped and Dy<sup>3+</sup>, Tm<sup>3+</sup>-codped Ge-Ga-S-CdI<inf>2</inf> chalcohalide glasses

Authors:Guo, Haitao (1); Liu, Lei (1); Wang, Yongqian (1); Hou, Chaoqi (1); Li, Weinan (1); Lu, Min (1); Zou, Kuaisheng (1); Peng, Bo (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an, Shanxi 710119, China

Corresponding author:Guo, H.

Source title:Optics Express

Abbreviated source title:Opt. Express

Volume:17

Issue:17

Issue date:August 17, 2009

Publication year:2009

Pages:15350-15358

Language:English

E-ISSN:10944087

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:Two serial Dy<sup>3+</sup>-doped and Dy<sup>3+</sup>, Tm <sup>3+</sup>-codoped (100x)(0.8GeS<inf>2</inf>-0.2Ga<inf>2</inf>S <inf>3</inf>)-&times;CdI<inf>2</inf> (0&le;&times;&le;20) chalcohalide glasses were prepared and characterized. By analyzing the absorption and emission measurements of the two serial chalcohalide glasses with the Judd-Ofelt analysis, we were able to calculate its Judd-Ofelt strength parameters, (t = 2, 4, 6), transition probabilities, exited state lifetimes, branching ratios, and emission crosssections. In the Dy<sup>3+</sup>-doped glasses, increase of CdI<inf>2</inf> had positive effect up to 1330nm fluorescence and the emission cross section (&sigma;<inf>emi</inf>) was estimated to be 4.19 &times; 10- <sup>20</sup> cm<sup>2</sup> for the 0.2wt% Dy<sup>3+</sup>-doped 64GeS <inf>2</inf>-16Ga<inf>2</inf>S<inf>3</inf>&middot;20CdI<inf>2</inf> glass. In the Dy<sup>3+</sup>, Tm<sup>3+</sup>-codoped glasses, increase of CdI <inf>2</inf> diminished the amount of ethane-like units [S<inf>3</inf>(Ga)Ge- Ge(Ga)S<inf>3</inf>], improved the Tm<sup>3+</sup>: <sup>3</sup>F <inf>4</inf>&rarr; Dy<sup>3+</sup>: <sup>6</sup>H<inf>11/2</inf> energy transfer efficiency and intensified the mid-infrared emissions. The emission cross sections (&sigma;<inf>emi</inf>) of the 2900 and 4300nm fluorescences were estimated to be 1.68 &times; 10<sup>-20</sup> and 1.20 &times; 10 <sup>-20</sup>Cm<sup>2</sup> respectively for the 0.2wt% Dy<sup>3+</sup> and 0.5wt% Tm<sup>3+</sup> codoped 64GeS<inf>2</inf>-16Ga<inf>2</inf>S <inf>3</inf>-20CdI<inf>2</inf> glass. These novel chalcohalide glasses are promising candidate materials for fiber-amplifiers and mid-infrared laser devices. &copy;2009 Optical Society of America.

Number of references:16

Main heading:Glass

Controlled terms:Doping (additives) - Energy transfer - Ethane - Fiber amplifiers - Fluorescence - Gallium - Germanium - Infrared devices - Optical parametric oscillators

Uncontrolled terms:Branching ratio - Candidate materials - Chalcohalide glass - Co-doped - Co-doped glass - Doped glass - Emission cross section - Emission measurement - Energy transfer efficiency - Exited state  - Judd-Ofelt - Judd-Ofelt analysis - Mid-infrared emission - Midinfrared lasers - Positive effects - Spectroscopic property - Strength parameters - Transition probabilities

Classification code:741.3 Optical Devices and Systems - 744.4 Solid State Lasers - 744.9 Laser Applications - 801 Chemistry - 804 Chemical Products Generally - 804.1 Organic Compounds - 812.3 Glass - 741.1.2 Fiber Optics - 525.4 Energy Losses (industrial and residential) - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 641.2 Heat Transfer - 712.1 Semiconducting Materials - 713.2 Oscillators - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics

DOI:10.1364/OE.17.015350

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:12841916

Title:Algorithmic research on multi-target capture for microspacecraft

Authors:Liu, Xiang (1); Hu, Bing-Liang (1); Shao, Xiu-Juan (1); Wei, Cui-Yu (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy Science, Xi'an 710068, China; (2) Graduate Student College, Chinese Academy Science, Beijing 100039, China

Corresponding author:Liu, X.(liuxiang@opt.ac.cn)

Source title:Yuhang Xuebao/Journal of Astronautics

Abbreviated source title:Yuhang Xuebao

Volume:30

Issue:4

Issue date:July 2009

Publication year:2009

Pages:1415-1420

Language:Chinese

ISSN:10001328

CODEN:YUXUD6

Document type:Journal article (JA)

Publisher:China Spaceflight Society, 2 Yuetan Beixiaojie, Beijing, 100830, China

Abstract:In order to capture the targets which were intermixed in the space background, a comparative different method based on the integration of eliminating rotation and distilling the centroid was introduced. Firstly, the effective background dots in the frame were labeled and centroid was distilled. Then, according to the referenced angle provided by the satellite orientation system, appropriate registration was made which can eliminate the rotation. Thirdly, according to the principle that the number of centroid which has the same coordinates reach the maximum when it is totally registration, the coordinates of the effective dots in the referenced frame were deleted, so gained the registration coordinates. At the last, comparative difference algorithm was used to wipe off the same background dots and obtain the targets. The stimulation result showed that the calculation was little; the probability of error was small. It can fit the multi-target capture of microspacecraft timely.

Number of references:7

Main heading:Algorithms

Controlled terms:Rotation - Targets

Uncontrolled terms:Algorithmic research - Centroid registration - Difference algorithms - Micro spacecrafts - Multitarget - Probability of errors

Classification code:601.1 Mechanical Devices - 723 Computer Software, Data Handling and Applications - 921 Mathematics - 931.1 Mechanics - 932.1.1 Particle Accelerators

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20101112774592

Title:Single-mode solid-core tellurite glass fiber with large mode area and low loss for infrared applications

Authors:Lin, Aoxiang (1); Zhang, Aidong (1); Bushong, Elizabeth J. (1); Toulouse, Jean (1)

Author affiliation:(1) Center for Optical Technologies and Physics Department, Lehigh University, Bethlehem, PA 18015, United States; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China

Corresponding author:Lin, A.(aoxiang.research@gmail.coma)

Source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Abbreviated source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Monograph title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Issue date:2009

Publication year:2009

Article number:5377147

Language:English

ISBN-13:9781557528773

Document type:Conference article (CA)

Conference name:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Conference date:November 2, 2009 - November 6, 2009

Conference location:Shanghai, China

Conference code:79515

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:We report on the fabrication of a single-mode solid-core tellurite glass fiber with large mode area of 103 &mu;m<sup>2</sup> and low loss of 0.24-0.7 dB/m at 1550 nm. By using the continuous-wave self-phase modulation method, the non-resonant nonlinear refractive index n<inf>2</inf> is estimated to be 3.8x10<sup>-19</sup> m<sup>2</sup>/W at 1550 nm. &copy;2009 Optical Society of America.

Number of references:6

Main heading:Glass fibers

Controlled terms:Amplification - Refractive index - Tellurium compounds

Uncontrolled terms:1550 nm - Continuous waves - Infrared applications - Large mode area - Low loss - Nonlinear refractive index - Nonresonant - Single mode - Tellurite glass fiber

Classification code:812.3 Glass - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 819.2 Synthetic Fibers - 741.1.2 Fiber Optics - 713.1 Amplifiers - 413 Insulating Materials - 741.1 Light/Optics

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092212102878

Title:A new photon counting imaging detector for the Chinese ChangE-2 EUV explorer mission

Authors:Zhu, Xiangping (1); Zhao, Baosheng (1); Liu, Yongan (1); Zhang, Xinghua (1); Miao, Zhenhua (1); Wei, Yonglin (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 710119, Xi'an

Corresponding author:Zhu, X.(xpzhu@opt.ac.cn)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7126

Monograph title:28th International Congress on High-Speed Imaging and Photonics

Issue date:2009

Publication year:2009

Article number:712617

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:28th International Congress on High-Speed Imaging and Photonics

Conference date:November 9, 2008 - November 14, 2008

Conference location:Canberra, Australia

Conference code:77144

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:This paper describes the preliminary design and performances of a new developed photon counting imaging detector for Chinese ChangE-2 EUV explorer mission. The detector consists of microchannel plate (MCP) stacks and wedge and strip anode and corresponding data read out electronics. The experimental results shows that the new developed detector has a spatial resolution of about 75um, image distortions are small and dark noise count rate less than 0.4 counts cm<sup>-2</sup>s<sup>-1</sup>. The pulse height distribution vs MCP operating voltages and the flat field performances are also discussed. &copy; 2009 SPIE.

Number of references:8

Main heading:Image storage tubes

Controlled terms:Detectors - Microchannels - Photons - Ultraviolet devices

Uncontrolled terms:Count rates - Dark noise - EUV - Explorer missions - Field performance - Image distortions - Imaging detector - Micro channel plate - MicroChannel plates (MCP) - Operating voltage  - Photon counting - Photon counting imaging - Preliminary design - Pulse height distribution - Readout Electronics - Spatial resolution - Wedge and strip anode

Classification code:931.3 Atomic and Molecular Physics - 914 Safety Engineering - 741.3 Optical Devices and Systems - 942.2 Electric Variables Measurements - 741.1 Light/Optics - 631 Fluid Flow - 604 Metal Cutting and Machining - 714.1 Electron Tubes

DOI:10.1117/12.821888

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092712164615

Title:Optimal method of designing triangular-spectrum fiber Bragg gratings with low index modulation and chirp-free structure

Authors:Gong, Yongkang (1); Lin, Aoxiang (1); Hu, Xiaohong (1); Wang, Leiran (1); Liu, Xueming (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.(liuxm@opt.ac.cn)

Source title:Journal of the Optical Society of America B: Optical Physics

Abbreviated source title:J Opt Soc Am B

Volume:26

Issue:5

Issue date:May 1, 2009

Publication year:2009

Pages:1042-1048

Language:English

ISSN:07403224

CODEN:JOBPDE

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:Combining the traditional nonlinear least squares (NLLS) method with a discrete layer peeling (DLP) algorithm, we propose a new method (for the first time to our knowledge) to synthesize triangular-spectrum fiber Bragg gratings (TS-FBGs) with chirp-free structures. In this method, the DLP algorithm is used to generate an appropriate initial value, and the NLLS method is successfully used to optimize the design parameters from the initial value in the previous step. Numerical results show that our method can design both single- and multiple-channel TS-FBGs with their maximum index modulations being effectively suppressed to a feasible level. These novel TS-FBGs thus designed can act as wavelength readout devices and provide potential applications to wavelength interrogation in optical sensor systems. &copy; 2009 Optical Society of America.

Number of references:32

Main heading:Fiber Bragg gratings

Controlled terms:Curve fitting - Fiber optic components - Fiber optic sensors - Modulation

Uncontrolled terms:Can design - Design parameters - Discrete layers - Free structures - Index modulation - Initial values - Low index - Multiple-channel - Nonlinear least squares - Numerical results  - Optimal methods - Potential applications - Wavelength interrogation

Classification code:922.2 Mathematical Statistics - 921.6 Numerical Methods - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 732.2 Control Instrumentation - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television

DOI:10.1364/JOSAB.26.001042

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 30>

 

Accession number:20093512273356

Title:Mode field diameter and nonlinear properties of air-core nanowires

Authors:Xiao-Hong, Hu (1); Wei, Zhao (1); Yong-Kang, Gong (1); Lei-Ran, Wang (1); Ke-Qing, Lu (1); Xue-Ming, Liu (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School of the Chinese, Academy of Sciences, Beijing 100049, China

Corresponding author:Xue-Ming, L.(liuxm@opt.ac.cn)

Source title:Chinese Physics B

Abbreviated source title:Chin. Phys.

Volume:18

Issue:8

Issue date:2009

Publication year:2009

Pages:3183-3188

Language:English

ISSN:16741056

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:Exact solutions of Maxwell's equations describing the lightwave through 3-layer-structured cylindrical waveguide are obtained and the mode field diameter and nonlinear coefficient of air-core nanowires (ACNWs) are numerically calculated. The simulation results show that ACNWs offer some unique optical properties, such as tight field confining ability and extremely high nonlinearity. At a certain wavelength and air core radius, we optimize the waveguide design to maximize the nonlinear coefficient and minimize the mode field diameter. Our results show that the ACNWs may be powerful potential tools for novel micro-photonic devices in the near future. &copy; 2009 Chin. Phys. Soc. and IOP Publishing Ltd.

Number of references:15

Main heading:Optical properties

Controlled terms:Electric wire - Maxwell equations - Nanowires - Nonlinear equations - Optical materials - Optoelectronic devices - Waveguides

Uncontrolled terms:Air-core - Cylindrical waveguide - Exact solution - High nonlinearity - Maxwell's equations - Mode field diameter - Nonlinear coefficient - Nonlinear properties - Numerical calculation - Potential tool  - Simulation result - Waveguide design

Classification code:921.2 Calculus - 921.1 Algebra - 761 Nanotechnology - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 933 Solid State Physics - 717.2 Optical Communication Equipment - 714.2 Semiconductor Devices and Integrated Circuits - 708.2 Conducting Materials - 701.2 Magnetism: Basic Concepts and Phenomena - 701.1 Electricity: Basic Concepts and Phenomena - 714.3 Waveguides

DOI:10.1088/1674-1056/18/8/015

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20140817362134

Title:Linear-cavity mode-locked fiber laser based on semiconductor optical amplifier

Authors:Yan, Shuangyi (1); Zhang, Jian-guo (3); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics, Photonics Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School of Chinese Academy of Sciences, Beijing 100039, China; (3) Department of Electrical, Computer and Communications Engineering, London South Bank University, 103 Borough Road, London SE1 OAA, United Kingdom

Source title:Optics InfoBase Conference Papers

Abbreviated source title:Opt.InfoBase Conf. Papers

Monograph title:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

Issue date:2009

Publication year:2009

Language:English

E-ISSN:21622701

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

Conference date:August 30, 2009  -  September 3, 2009

Conference location:Shanghai, China

Conference code:102747

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:SOA-based linear cavity mode-locked fiber laser is proposed with an external pulse sequence in this paper. 4.8ps pulse sequence at 10GHz is achieved successfully with time jitter about 60fs in a simple configuration. &copy; 2009 IEEE.

Number of references:4

Main heading:Locks (fasteners)

Controlled terms:Fiber lasers - Mode-locked fiber lasers - Semiconductor lasers

Uncontrolled terms:Linear cavity - Mode-locked laser - Pulse sequence - Time jitters

Classification code:601.3 Mechanisms - 744 Lasers

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093912340016

Title:Effects of organic surfactant on fluorescence concentration quenching of Nd<sup>3+</sup>-doped LaF<inf>3</inf> nanoparticles

Authors:Kai, Cui (1); Chao, Gao (1); Xiaoxia, Cui (1); Chaoqi, Hou (1); Jiangbo, She (1); Bo, Peng A. (1); Wei, Wei (2)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences (CAS), Xi'an Shaanxi, 710119, China; (2) Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Corresponding author:Bo, P. A.(bpeng@opt.ac.cn)

Source title:Optics Letters

Abbreviated source title:Opt. Lett.

Volume:34

Issue:18

Issue date:September 15, 2009

Publication year:2009

Pages:2826-2828

Language:English

ISSN:01469592

E-ISSN:15394794

CODEN:OPLEDP

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:Distinct effects of organic surfactant [ammonium di-n- octadecyldithioposhate (ADDP)] on the fluorescent property of Nd <sup>8+</sup>-doped LaF<inf>3</inf> nanoparticles were demonstrated by incorporating different amounts of organic surfactant on the nanoparticles. The photoluminescence spectra and fluorescence quenching concentrations of the nanoparticles were measured. A high fluorescence quenching concentration (of about 23.4 wt. %) for the LnF<inf>2.36</inf>ADDP<inf>0.64</inf> nanoparticles was observed. The quenching concentration could be adjusted by varying the amount of organic surfactant. This phenomenon is ascribed to the protection of organic surfactants coordinated on nanoparticles' fluorescent centers. &copy; 2009 Optical Society of America.

Number of references:10

Main heading:Quenching

Controlled terms:Ammonium compounds - Concentration (process) - Fluorescence - Nanoparticles - Neodymium - Surface active agents

Uncontrolled terms:Concentration quenching - Fluorescence quenching - Fluorescent property - Organic surfactants - Photoluminescence spectrum - Quenching concentration

Classification code:933 Solid State Physics - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 761 Nanotechnology - 741.1 Light/Optics - 712.2 Thermionic Materials - 708 Electric and Magnetic Materials - 547.2 Rare Earth Metals - 537.1 Heat Treatment Processes

DOI:10.1364/OL.34.002826

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092212102858

Title:The designs of optical system with laser illumination for shooting positions measurement

Authors:Bai, Qinglan (1); Li, Hua (1); Xiong, Wang-E (1)

Author affiliation:(1) Xi'an Institute of Optics and Mechanics, Chinese Academy of Sciences, Xi'an, 710068

Corresponding author:Bai, Q.(baiqinglan@opt.ac.cn)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7126

Monograph title:28th International Congress on High-Speed Imaging and Photonics

Issue date:2009

Publication year:2009

Article number:71261R

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:28th International Congress on High-Speed Imaging and Photonics

Conference date:November 9, 2008 - November 14, 2008

Conference location:Canberra, Australia

Conference code:77144

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The principle of a shooting positions measurement system with laser illumination is introduced. A narrow band-pass filter is used to suppress background radiation except the laser band for detecting small, high-speed, dark objects. The maximal angle of the entrance ray is limited in the case of using the narrow band-pass filter, so different designs of optical systems with a wide field of view are discussed. The result of telecentric objective with 54&deg; field of view and a relative aperture 1/2 is given. &copy; 2009 SPIE.

Number of references:3

Main heading:Optical systems

Controlled terms:Lasers - Photolithography

Uncontrolled terms:Background radiation - Field of views - High-speed - Laser bands - Laser illumination - Maximal angle - Measurement system - Narrow-band pass filters - Shooting positions measurement - Telecentric objective at image space  - Wide field of view

Classification code:714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 745.1 Printing

DOI:10.1117/12.823824

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092312108353

Title:Generation of fiber tunable high-power picosecond laser pulse

Authors:Liu, Hongjun (1); Gao, Cunxiao (1); Tao, Jintao (1); Zhao, Wei (1); Wang, Yishan (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an

Corresponding author:Liu, H.(liuhongjun@opt.ac.cn)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7126

Monograph title:28th International Congress on High-Speed Imaging and Photonics

Issue date:2009

Publication year:2009

Article number:712618

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:28th International Congress on High-Speed Imaging and Photonics

Conference date:November 9, 2008 - November 14, 2008

Conference location:Canberra, Australia

Conference code:77144

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:A fiber tunable high-power picosecond laser system has been demonstrated. A gain switch semiconductor laser diode was introduced as seed source, and a multi-stage single mode Yb-doped fiber amplifier was combined with a single mode double-clad Yb-doped fiber amplifier and a PCF amplifier to construct the amplification system. High stability and good beam quality pulses with 1MHz tunable repetition rate, 6.8W average power, 90ps pulse duration, and central wavelength tunable from 1053 nm to 1073 nm were generated. The completely fiber-integrated approach has the potential to be scaled to significantly higher average powers. &copy; 2009 SPIE.

Number of references:13

Main heading:Pulsed laser applications

Controlled terms:Amplification - Architectural design - Fiber amplifiers - Fibers - Laser pulses - Lasers - Semiconductor lasers - Ytterbium

Uncontrolled terms:Average power - Central wavelength - Double-clad - Gain switch - Good beam quality - High stability - High-power - Integrated approach - Multi-stage - Picosecond laser  - Picosecond laser pulse - Pulse durations - Repetition rate - Seed source - Semiconductor laser diodes - Single mode - Yb-doped fibers

Classification code:744.1 Lasers, General - 744.4 Solid State Lasers - 744.4.1 Semiconductor Lasers - 744.9 Laser Applications - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 741.1.2 Fiber Optics - 402 Buildings and Towers - 408.1 Structural Design, General - 547.2 Rare Earth Metals - 712.1 Semiconducting Materials - 713.1 Amplifiers - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics

DOI:10.1117/12.821882

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094312398169

Title:Design and simulation of the circuit of SWIR hyper-spectral imaging spectrometer

Authors:Ren, Bin (1); Li, Zi-Tian (1); Meng, Nan (3)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Xi'an, Shaanxi, 710119, China; (2) Gradute School of the Chinese Academy of Sciences, Beijing, 100039, China; (3) PLA Xi'an Communication Collage, Xi'an, Shaanxi, 710106, China

Corresponding author:Ren, B.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7383

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Advances in Infrared Imaging and Applications

Issue date:2009

Publication year:2009

Article number:73832N

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476647

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:77315

Sponsor:Chinese Soci. Astronaut. Photoelectr. Technol. Prof. Comm.

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:With the requirement of the SWIR Hyper-spectral Imaging Spectrometer, this article describes a project of SWIR image circuit based on IRFPA detector. First, the structure of the SWIR Hyper-spectral Imaging Spectrometer is introduced in this paper, and then the infrared imaging circuit design is proposed, which is based on MCT SWIR FPA with 500*256 pixels, the detector NEPTURN, in Safradir Company. According to the scheme, several key technologies have been studied in particular, such as driving circuit, time control circuit, high-speed A/D converter, LVDS (Low Voltage Differential Signaling) transmission circuit. At last, An improved two-point Correction Method was chosen to correct the Non-uniformity of image. The simulation results demonstrate that the proposed method can effectively suppress noises and work with low power consumption. The electric system not only has the advantages of simplicity and compactness but also can work stably, providing 500&times;256 image at the frame frequency of 200 Hz in good quality. &copy; 2009 SPIE.

Number of references:4

Main heading:Thermography (imaging)

Controlled terms:Analog to digital conversion - Detectors - Electric network analysis - Field programmable gate arrays (FPGA) - Imaging systems - Infrared devices - Integrated circuit manufacture - Spectrometers - Spectrometry

Uncontrolled terms:A/D converter - Circuit designs - Design and simulation - Driving circuits - Electric systems - FPGA - High-speed - Hyperspectral Imaging - IRFPA - Key technologies  - Low voltage differential signaling - Low-power consumption - LVDS - Non-uniformity correction - Nonuniformity - Simulation result - Time control - Transmission circuits - Two-point correction

Classification code:741.3 Optical Devices and Systems - 742.1 Photography - 746 Imaging Techniques - 801 Chemistry - 914 Safety Engineering - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 741 Light, Optics and Optical Devices - 703.1.1 Electric Network Analysis - 714.2 Semiconductor Devices and Integrated Circuits - 721.2 Logic Elements - 721.3 Computer Circuits - 722.4 Digital Computers and Systems - 722.5 Analog and Hybrid Computers - 723.2 Data Processing and Image Processing

DOI:10.1117/12.835401

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20101912920151

Title:Object trajectory clustering via tensor analysis

Authors:Zhou, Huiyu (1); Tao, Dacheng (2); Yuan, Yuan (3); Li, Xuelong (4)

Author affiliation:(1) Brunel University, Uxbridge, Middlesex, UB8 3PH, United Kingdom; (2) School of Computer Engineering, Nanyang Technological University, Singapore 639798, Singapore; (3) Aston University, Birmingham, B4 7ET, United Kingdom; (4) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an 710119, China

Corresponding author:Zhou, H.

Source title:Proceedings - International Conference on Image Processing, ICIP

Abbreviated source title:Proc. Int. Conf. Image Process. ICIP

Monograph title:2009 IEEE International Conference on Image Processing, ICIP 2009 - Proceedings

Issue date:2009

Publication year:2009

Pages:1945-1948

Article number:5414536

Language:English

ISSN:15224880

ISBN-13:9781424456543

Document type:Conference article (CA)

Conference name:2009 IEEE International Conference on Image Processing, ICIP 2009

Conference date:November 7, 2009 - November 12, 2009

Conference location:Cairo, Egypt

Conference code:79910

Sponsor:The Institute of Electrical and Electronics Engineers; IEEE Signal Processing Society

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:In this paper we present a new video object trajectory clustering algorithm1, which allows us to model and analyse the patterns of object behaviors based on the extracted features using tensor analysis. The proposed algorithm consists of three steps as follows: extraction of trajectory features by tensor analysis, non-parametric probabilistic mean shift clustering and clustering correction. The performance of the proposed algorithm is evaluated on standard data-sets and compared with classical techniques. &copy;2009 IEEE.

Number of references:11

Main heading:Cluster analysis

Controlled terms:Algorithms - Feature extraction - Image processing - Imaging systems - Target tracking - Tensors - Trajectories - Vector quantization

Uncontrolled terms:Classical techniques - Data sets - Mean shift - Non-parametric - Object behavior - Object trajectories - Video objects

Classification code:723.5 Computer Applications - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 922 Statistical Methods - 746 Imaging Techniques - 921 Mathematics - 921.1 Algebra - 751.1 Acoustic Waves - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 404.1 Military Engineering - 654.1 Rockets and Missiles - 655.2 Satellites - 656.1 Space Flight - 716 Telecommunication; Radar, Radio and Television - 716.2 Radar Systems and Equipment

DOI:10.1109/ICIP.2009.5414536

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094512429834

Title:Simulation of supercontinuum generation by using modified split-step fourier algorithm

Authors:Cui, Xiuyan (1); Zhao, Jianlin (1); Yang, Dexing (1); Li, Peng (1); Zhao, Wei (2); Wang, Yishan (2)

Author affiliation:(1) Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an, Shaanxi 710068, China

Corresponding author:Cui, X.(cui543@163.com)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:8

Issue date:August 2009

Publication year:2009

Pages:2046-2051

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:In order to improve the precision of simulated supercontinuum (SC) generation, the split-step Fourier algorithm is modified without increasing the computation amount. Traditional algorithm only refers to the dispersion coefficient of the central frequency. Due to the wide range of the supercontinuum, the error of the result would be big by using the traditional algorithm if the slope of the dispersion coefficient is large. According to the modified algorithm, the pulse could be regarded as the combination of many elements each with only one frequency. The elements with different frequencies could be processed seperately by using the modified algorithm, so the dispersion coefficients of all the frequencies could be refered to. The modified algorithm is applied in simulating the supercontinuum generation in the photonic crystal fibers with one and two zero dispersion wavelengths. And the results are compared with those of traditional algorithm. The simulation results show that the superiority of the modified split-step Fourier algorithm is not obvious in the photonic crystal fibers (PCF) with only one zero dispersion wavelength, but having certain superiorities in simulating the supercontinuum generation of the photonic crystal fibers with two zero dispersion wavelengths.

Number of references:17

Main heading:Photonic crystal fibers

Controlled terms:Algorithms - Boltzmann equation - Crystal whiskers - Dispersions - Fibers - Fourier transforms - Laser pulses - Nonlinear optics - Optical materials - Photonic crystals

Uncontrolled terms:Central frequency - Different frequency - Dispersion coefficient - Modified algorithms - One frequency - Simulation result - Split-step Fourier algorithm - Supercontinuum - Supercontinuum generations - Zero-dispersion wavelength

Classification code:951 Materials Science - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 921 Mathematics - 921.3 Mathematical Transformations - 922 Statistical Methods - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 801.4 Physical Chemistry - 531.2 Metallography - 631 Fluid Flow - 723 Computer Software, Data Handling and Applications - 801.3 Colloid Chemistry - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 741.1.2 Fiber Optics

DOI:10.3788/CJL20093608.2046

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094112365066

Title:Tellurium-enhanced nonresonant third-order optical nonlinearity in a germanosilicate optical fiber

Authors:Lin, Aoxiang (1); Liu, Xueming (3); Watekar, Pramod R. (2); Zhao, Wei (3); Peng, Bo (3); Lu, Min (3); Wei, Wei (3); Sun, Chuandong (3); Wang, Yishan (3); Han, Won-Taek (2); Toulouse, Jean (1)

Author affiliation:(1) Center for Optical Technologies and Physics Department, Lehigh University, Bethlehem, PA 18015, United States; (2) Department of Information and Communications, School of Photon Science and Technology, Gwangju Institute of Science and Technology (GIST), Gwangju 500712, Korea, Republic of; (3) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China

Corresponding author:Lin, A.(aoxiang.research@gmail.com)

Source title:Applied Optics

Abbreviated source title:Appl. Opt.

Volume:48

Issue:26

Issue date:September 10, 2009

Publication year:2009

Pages:4922-4925

Language:English

ISSN:1559128X

E-ISSN:15394522

CODEN:APOPAI

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:A tellurium-doped germanosilicate optical fiber was developed by modified chemical vapor deposition and solution doping techniques. Using the continuous-wave self-phase modulation method, the nonresonant nonlinear refractive index, n2, was measured to be 5:52 &times; 10<sup>-20</sup> m <sup>2</sup>=W, which is 2 to 3 times that of the undoped germanosilicate glass fiber. Polyhedron structures TeO<inf>3</inf> and TeO<inf>4</inf> with GeO <inf>4</inf> and SiO<inf>4</inf> are believed responsible for lower phonon energy, more nonbridging oxygens, and a larger hyperpolarization,leading to the observed higher nonresonant optical nonlinearity. &copy; 2009 Optical Society of America.

Number of references:25

Main heading:Optical materials

Controlled terms:Doping (additives) - Glass fibers - Nonlinear optics - Optical fibers - Oxygen - Refractive index - Silicon compounds - Tellurium - Tellurium compounds

Uncontrolled terms:Continuous waves - Germanosilicate glass fibers - Germanosilicates - Hyperpolarization - Modified chemical vapor depositions - Non-bridging oxygen - Nonlinear refractive index - Nonresonant - Optical nonlinearity - Phonon energies  - Solution-doping technique - Third-order optical nonlinearities

Classification code:741.3 Optical Devices and Systems - 801 Chemistry - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812.3 Glass - 819.2 Synthetic Fibers - 741.1.2 Fiber Optics - 413 Insulating Materials - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 712.1 Semiconducting Materials - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 741.1.1 Nonlinear Optics

DOI:10.1364/AO.48.004922

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092012082774

Title:First-principles calculation of electronic structure and optical properties of AZO(ZnO:Al)

Authors:Zhang, Fuchun (1); Zhang, Zhiyong (4); Zhang, Weihu (1); Yan, Junfeng (4); Yun, Jiangni (4)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; (2) Graduate University, Chinese Academy of Sciences, Beijing 100039, China; (3) College of Physics and Electronic Information, Yan'an University, Yan'an 716000, China; (4) Institute of Information Science and Technology, Northwest University, Xi'an 710069, China

Corresponding author:Zhang, Z.(zhangzy@nwu.edu.cn)

Source title:Guangxue Xuebao/Acta Optica Sinica

Abbreviated source title:Guangxue Xuebao

Volume:29

Issue:4

Issue date:April 2009

Publication year:2009

Pages:1025-1031

Language:Chinese

ISSN:02532239

CODEN:GUXUDC

Document type:Journal article (JA)

Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China

Abstract:The electronic structure and optical properties of ZnO are calculated in different Al doping. The effects of Al doping on the crystal structure, band structure, density of state and optical properties are analysed by using the first-principles calculation of plane wave ultra-soft pseudo-potential technology based on density function theory (DFT). The calculated results reveal that there are lots of carriers in the bottom of conduction bands due to the donor doping, which improve greatly the conductivity of the Al-doped system, and the Fermi level moves into conduction bands (CBs). Moreover, the optical band gap is broadened and moves towards lower energy. The optical transmittance of Al doped AZO is as high as 85% in the visible region, the UV absorption edge is blue shifted greatly with increasing Al doping concentration. All calculated results showe that the AZO materials can be used as excellent transparent conducting films.

Number of references:20

Main heading:Crystal structure

Controlled terms:Aluminum - Conduction bands - Conductive films - Doping (additives) - Electric conductivity - Electron mobility - Electronic properties - Electronic structure - Optical properties - Probability density function  - Semiconducting zinc compounds - Solid state physics - Zinc oxide

Uncontrolled terms:Al doped - Al-doping - Blue-shifted - Density function theories - Density of state - Donor doping - Doped systems - Doping - Electronic structure and optical properties - First-principles  - First-principles calculations - Lower energies - Optical transmittances - Plane waves - Potential technologies - Transparent conducting films - UV absorptions - Visible regions - ZnO

Classification code:804.2 Inorganic Compounds - 921 Mathematics - 922.1 Probability Theory - 931.1 Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.3 Atomic and Molecular Physics - 932.1 High Energy Physics - 933 Solid State Physics - 933.1.1 Crystal Lattice - 801.4 Physical Chemistry - 531.2 Metallography - 541.1 Aluminum - 701.1 Electricity: Basic Concepts and Phenomena - 708.2 Conducting Materials - 712.1 Semiconducting Materials - 712.1.2 Compound Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 741.1 Light/Optics - 801 Chemistry

DOI:10.3788/AOS20092904.1025

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094512438516

Title:Influence of air filling factor on photonic crystal fiber laser

Authors:Huang, Guoling (1); Yang, Dexing (1); Zhang, Yuling (1); Zhao, Jianlin (1); Li, Hailian (1); Liang, Qingwen (1); Wang, Yishan (2); Zhao, Wei (2)

Author affiliation:(1) Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710129, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Huang, G.(huangguoling03@163.com)

Source title:Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams

Abbreviated source title:Qiangjiguang Yu Lizishu

Volume:21

Issue:10

Issue date:October 2009

Publication year:2009

Pages:1462-1466

Language:Chinese

ISSN:10014322

CODEN:QYLIEL

Document type:Journal article (JA)

Publisher:Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China

Abstract:Based on the principle of traditional fiber laser, rate equations and the power transmission equations of the single mode photonic crystal fiber(PCF) laser are given considering the mode field distribution of PCF, and then the characteristics of the ytterbium-doped single mode PCF laser are numerically analyzed. The results show that the air filling factor of PCF does not remarkably affect the output power, pump threshold power and slope efficiency, but markedly influence the non-linear Raman threshold of PCF laser. The PCF laser outputs signal light mainly or signal and Stokes lights simultaneously while the pump power is below or above the Raman threshold, respectively. Therefore, a concept of dual-wavelength fiber laser through controlling the pump power is presented. At the same time, the dual-wavelength laser oscillation with a relatively wide range of output power could be realized by employing the PCF with different structures.

Number of references:19

Main heading:Photonic crystal fibers

Controlled terms:Crystal whiskers - Fiber lasers - Fibers - Laser pulses - Nonlinear optics - Photonic crystals - Pumping (laser) - Pumps - Ytterbium

Uncontrolled terms:Air filling factors - Different structure - Dual wavelength fiber lasers - Dual-wavelength laser - Laser output - Mode-field distribution - Non-linear - Non-linear Raman threshold - Output power - Power transmission equations  - Pump power - Pump threshold - Rate equations - Signal light - Single mode - Single mode photonic crystal fiber - Slope efficiencies - Ytterbium-doped

Classification code:801.4 Physical Chemistry - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 951 Materials Science - 744.4 Solid State Lasers - 531.2 Metallography - 547.2 Rare Earth Metals - 618.2 Pumps - 741.1.1 Nonlinear Optics - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094712477960

Title:Analysis of signal-to-noise ratio of an ultra-compact static polarization interference imaging spectrometer

Authors:Zhang, Chunmin (1); Zhao, Baochang (3); Yuan, Zhilin (1); Huang, Weijian (1)

Author affiliation:(1) Non-equilibrium Condensed Matter and Quantum Engineering Laboratory, Xi'An Jiaotong University, Xi'an 710049, China; (2) School of Science, Xi'An Jiaotong University, Xi'an 710049, China; (3) Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'An 710068, China; (4) Wuhan Research Institute of Post and Telecommunication, Wuhan 430074, China

Corresponding author:Zhang, C.(zcm@mail.xjtu.edu.cn)

Source title:Journal of Optics A: Pure and Applied Optics

Abbreviated source title:J Opt A Pure Appl Opt

Volume:11

Issue:8

Issue date:2009

Publication year:2009

Article number:085401

Language:English

ISSN:14644258

E-ISSN:17413567

CODEN:JOAOF8

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:Based on radiometry, electromagnetism and polarization theories and Fourier transform spectroscopy, an in-depth study is conducted on the signal-to-noise ratio (SNR) of the self-developed ultra-compact static polarization interference imaging spectrometer (USPIIS) both theoretically and experimentally. The theoretical equations of its SNR are deduced. Under the paraxial approximation, the curved line of the SNR with incidence angle changing is given via computer simulation. How the polarizing directions affect the SNR of the USPIIS, which is a particular sign of the polarization interference imaging spectrometer, is closely studied. When modulation depth equals 0.6, 0.7, 0.8, 0.9 and 1.0, the curved lines of the SNR with changing polarizing directions are given; after that, the optimum value is proposed. Under optimum conditions, the changing laws of SNR with the detector element are obtained, the same as the theoretical prediction. The theoretical and experimental results both indicate that the novel imaging spectrometer has the advantages of high throughput and high SNR under the condition of high modulation depth, which is suitable for aeronautics and space remote sensing and weak signal testing. &copy; 2009 IOP Publishing Ltd.

Number of references:22

Main heading:Signal to noise ratio

Controlled terms:Acoustic intensity - Computer simulation - Modulation - Polarization - Ray tracing - Remote sensing - Spectrometers - Spectrometry - Spectroscopy

Uncontrolled terms:Analysis of signal - Curved lines - Detector elements - Fourier Transform spectroscopy - High SNR - High throughput - Imaging spectrometers - In-depth study - Incidence angles - Interference imaging  - Modulation depth - Optimum conditions - Optimum value - Paraxial approximations - Space remote sensing - Static polarization interference imaging spectrometers - Theoretical equation - Theoretical prediction - Weak signals

Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 751.2 Acoustic Properties of Materials - 941.4 Optical Variables Measurements - 801 Chemistry - 932.2 Nuclear Physics - 941.3 Optical Instruments - 931.3 Atomic and Molecular Physics - 731.1 Control Systems - 723.5 Computer Applications - 701.1 Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 716 Telecommunication; Radar, Radio and Television - 716.1 Information Theory and Signal Processing - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications

DOI:10.1088/1464-4258/11/8/085401

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20101112774795

Title:Multiple dissipative soliton evolution in an erbium-doped fiber laser with large normal-cavity-dispersion

Authors:Wang, Leiran (1); Sun, Hongbo (1); Li, Xiaohui (1); Gong, Yongkang (1); Liu, Xueming (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.(liuxm@opt.ac.cn)

Source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Abbreviated source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Monograph title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Issue date:2009

Publication year:2009

Article number:5377363

Language:English

ISBN-13:9781557528773

Document type:Conference article (CA)

Conference name:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Conference date:November 2, 2009 - November 6, 2009

Conference location:Shanghai, China

Conference code:79515

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:Experimental observations of multiple dissipative solitons are reported in a fiber laser with large normal-cavity-dispersion. Eight solitons can be generated from the laser cavity at pump power of about 310mW. Results show that the stable propagation of dissipative solitons may be limited by the accumulation of excessive pulse chirps. &copy; 2009 Optical Society of America.

Number of references:8

Main heading:Fiber lasers

Controlled terms:Dispersion (waves) - Erbium - Pumping (laser) - Solitons

Uncontrolled terms:Dissipative solitons - Erbium doped fiber laser - Experimental observation - Laser cavity - Pulse chirp - Pump power

Classification code:931.3 Atomic and Molecular Physics - 921.1 Algebra - 744.4 Solid State Lasers - 744.1 Lasers, General - 741.1.2 Fiber Optics - 711.1 Electromagnetic Waves in Different Media - 547.2 Rare Earth Metals

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094312391658

Title:A new spectral image assessment based on energy of structural distortion

Authors:Wang, Cailing (1); Liu, Xuebin (1); Hu, Bingliang (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an, 710068, China; (2) Graduate School, Chinese Academy of Science, Beijing, 100039, China

Corresponding author:Wang, C.(azering@opt.ac.cn)

Source title:Proceedings of 2009 International Conference on Image Analysis and Signal Processing, IASP 2009

Abbreviated source title:Proc. Int. Conf. Image Anal. Signal Process., IASP

Monograph title:Proceedings of 2009 International Conference on Image Analysis and Signal Processing, IASP 2009

Issue date:2009

Publication year:2009

Pages:119-122

Article number:5054606

Language:English

ISBN-13:9781424439867

Document type:Conference article (CA)

Conference name:2009 International Conference on Image Analysis and Signal Processing, IASP 2009

Conference date:April 11, 2009 - April 12, 2009

Conference location:Taizhou, China

Conference code:77463

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:We proposed a new method for assessing spectral image quality. It is based on the energy of structural distortion. We compared it with other assessments which have been used to evaluate spectral image before. Numerical results show that the proposed approach runs well. &copy;2009 IEEE.

Number of references:12

Main heading:Image analysis

Controlled terms:Digital image storage - Image compression - Image quality - Signal processing

Uncontrolled terms:Energy of structure distortion - Image structure - Numerical results - Spectral image assessment - Spectral image compression - Spectral image quality - Spectral images - Structural distortions

Classification code:716.1 Information Theory and Signal Processing - 722.1 Data Storage, Equipment and Techniques - 722.4 Digital Computers and Systems - 723.2 Data Processing and Image Processing - 741 Light, Optics and Optical Devices - 741.3 Optical Devices and Systems

DOI:10.1109/IASP.2009.5054606

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093312256972

Title:Broad-bandgap and low-sidelobe surface plasmon polariton reflector with Bragg-grating-based MIM waveguide

Authors:Gong, Yongkang (1); Wang, Leiran (1); Hu, Xiaohong (1); Li, Xiaohui (1); Liu, Xueming (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.(liuxm@opt.ac.cn)

Source title:Optics Express

Abbreviated source title:Opt. Express

Volume:17

Issue:16

Issue date:August 3, 2009

Publication year:2009

Pages:13727-13736

Language:English

E-ISSN:10944087

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:Surface plasmon polariton reflector (SPPR) based on metal-insulator-metal (MIM) Bragg grating waveguide is numerically studied. A quasi-chirped technique is applied to the engraved grooves in the surface of the MIM waveguide, and a new kind of broad-bandgap SPPR is achieved. Meanwhile, by optimizing the profile of gap width between the metal and dielectric, the spectral sidelobe of SPPR is effectively suppressed and thus the performance of the SPPR is further improved. &copy; 2009 Optical Society of America.

Number of references:46

Main heading:MIM devices

Controlled terms:Energy gap - Metal insulator boundaries - Phonons - Photons - Plasmons - Quantum theory - Reflection - Surface plasmon resonance - Waveguides

Uncontrolled terms:Band gaps - Gap widths - Metal insulator metals - Side lobes - Surface plasmon polaritons

Classification code:932.3 Plasma Physics - 931.4 Quantum Theory; Quantum Mechanics - 931.3 Atomic and Molecular Physics - 751.1 Acoustic Waves - 741.1 Light/Optics - 714.3 Waveguides - 714.2 Semiconductor Devices and Integrated Circuits - 712.1 Semiconducting Materials - 711 Electromagnetic Waves

DOI:10.1364/OE.17.013727

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093312251393

Title:A novel combined focusing-deflection system for streak image tube

Authors:Kang, Yifan (1); Feng, Dayi (1); Zhou, Libin (2); Wang, Chao (3); Tian, Xiaona (3); Tian, Jinshou (4); Liu, Hulin (4); Tang, Tiantong (3)

Author affiliation:(1) Science Institute, Air Force Engineering University, Xi'an 710051, China; (2) Faculty of Science, Shaanxi University of Science and Technology, Xi'an 710021, China; (3) Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; (4) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Kang, Y.(yifan440@126.com)

Source title:Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams

Abbreviated source title:Qiangjiguang Yu Lizishu

Volume:21

Issue:7

Issue date:July 2009

Publication year:2009

Pages:993-997

Language:Chinese

ISSN:10014322

CODEN:QYLIEL

Document type:Journal article (JA)

Publisher:Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China

Abstract:A novel multiple-electrode electrostatic deflector (petal-like) is introduced. It can be got by symmetrically slotting a cylindrical electrode into eight separate parts. The Fourier analysis of the potential distribution on the circumference of the electrode circle has elicited the principle for electrode potential settings to generate a nearly transversely-uniform deflecting field. Based on the rotational symmetry in its shape and the harmonicity of the solution of Laplace equation, multipole fields generated by the petal-like electrode would not affect the focusing property of the conventional electrostatic lens in the paraxial region, when the focusing potential additionally applied. Therefore, the introduced multiple-electrode petal-like defector can be combined with the commonly used cylindrical focusing electrode in a streak tube to form a combined focusing-deflection system, of which the focusing and deflecting properties have been verified by the related qualitative analysis. And the optimized system has provided the possibility for the miniaturization of streak tubes.

Number of references:14

Main heading:Quality control

Controlled terms:Deflection (structures) - Electron optics - Electrostatic lenses - Electrostatics - Focusing - Fourier analysis - Fourier transforms - Image converters - Image storage tubes - Laplace equation  - Lenses - Miniature instruments - Streak cameras - Tubes (components)

Uncontrolled terms:Combined focusing-deflection systems - Cylindrical electrodes - Deflecting field - Deflection systems - Electrode potentials - Electrostatic deflectors - Focusing properties - Harmonicity - Miniaturization - Multipole fields  - Optimized system - Paraxial - Petal-like deflector - Potential distributions - Qualitative analysis - Rotational symmetries - Streak image tube - Streak tubes

Classification code:752 Sound Devices, Equipment and Systems - 913.3 Quality Assurance and Control - 921 Mathematics - 921.2 Calculus - 921.3 Mathematical Transformations - 751.1 Acoustic Waves - 931.3 Atomic and Molecular Physics - 941 Acoustical and Optical Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 932.1 High Energy Physics - 751 Acoustics, Noise. Sound - 421 Strength of Building Materials; Mechanical Properties - 482.1 Mineralogical Techniques - 511.2 Oil Field Equipment - 616.1 Heat Exchange Equipment and Components - 619.1 Pipe, Piping and Pipelines - 408.2 Structural Members and Shapes - 701.1 Electricity: Basic Concepts and Phenomena - 714.1 Electron Tubes - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 711.1 Electromagnetic Waves in Different Media

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094212387801

Title:Comparison analysis on the diffractive efficiency of single-layer and double-layer harmonic diffractive optical element

Authors:Sun, Ting (1); Jiao, Ming-Yin (1); Zhang, Yu-Hong (2)

Author affiliation:(1) Xi'an Institute of Applied Optics, Xi'an 710065, China; (2) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710068, China

Corresponding author:Sun, T.(sunting@opt.ac.cn)

Source title:Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering

Abbreviated source title:Hongwai yu Jiguang Gongcheng Infrared Laser Eng.

Volume:38

Issue:4

Issue date:2009

Publication year:2009

Pages:622-624

Language:Chinese

ISSN:10072276

Document type:Journal article (JA)

Publisher:Chinese Society of Astronautics, P.O. Box 225-32, Tianjin, 300192, China

Abstract:Single-layer harmonic diffractive optical element (HDOE) can only blaze at the harmonic wavelength. The diffractive efficiency will rapidly drop, as the wavelength deviates with harmonic wavelength, which will lead to bad imaging quality over wide wave band. In order to extend the application of HDOE to wide wave band, the diffractive efficiency of double-layer HDOE which was equivalent to common single-layer diffractive optical element (DOE) was analyzed. The result shows that the diffractive efficiency of the double-layer HDOE is evidently higher than that of single-layer HDOE, and the spectral distribution of the diffractive efficiency basically keeps balance over the whole design wave band. The diffractive efficiency of single-layer and double-layer HDOE made of ZF7 or QK3 was simulated by Matlab software respectively, which was used widely in the visible light wave band. The results show that the numerical simulation quantitative analysis is consistent with the theoretic qualitative analysis. The above method and results will provide powerful theoretical foundation for double-layer HDOE application in the imaging field over wide wave band.

Number of references:8

Main heading:Harmonic analysis

Controlled terms:Computer simulation - Density (optical) - Diffractive optical elements - MATLAB - Quality control

Uncontrolled terms:Comparison analysis - Design wave - Diffractive efficiency - Double layers - Harmonic diffractive optical element - Harmonic wavelengths - Imaging fields - Imaging quality - Matlab- software - Numerical simulation  - Qualitative analysis - Quantitative analysis - Single layer - Single-layer and double-layer harmonic diffractive optical element - Spectral distribution - Theoretical foundations - Visible light - Wavebands - Wide wave band

Classification code:921.6 Numerical Methods - 921 Mathematics - 913.3 Quality Assurance and Control - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 723.5 Computer Applications - 723.1.1 Computer Programming Languages

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094012348807

Title:Embedded geometric active contour with shape constraint for mass segmentation

Authors:Wang, Ying (1); Gao, Xinbo (1); Li, Xuelong (2); Tao, Dacheng (3); Wang, Bin (1)

Author affiliation:(1) School of Electronic Engineering, Xidian University, Xi'an 710071, China; (2) State Key Laboratory of Transient Optics and Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (3) School of Computer Engineering, Nanyang Technological University, 639798 Singapore, Singapore

Corresponding author:Wang, Y.

Source title:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abbreviated source title:Lect. Notes Comput. Sci.

Volume:5702 LNCS

Monograph title:Computer Analysis of Images and Patterns - 13th International Conference, CAIP 2009, Proceedings

Issue date:2009

Publication year:2009

Pages:995-1002

Language:English

ISSN:03029743

E-ISSN:16113349

ISBN-10:3642037666

ISBN-13:9783642037665

Document type:Conference article (CA)

Conference name:13th International Conference on Computer Analysis of Images and Patterns, CAIP 2009

Conference date:September 2, 2009 - September 4, 2009

Conference location:Munster, Germany

Conference code:77256

Sponsor:University of Munster; International Association for Pattern Recognition; Olympus Soft Imaging Solutions GmbH; Philips

Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany

Abstract:Mass boundary segmentation plays an important role in computer aided diagnosis (CAD) system. Since the shape and boundary are crucial discriminant features in CAD, the active contour methods are more competitive in mass segmentation. However, the general active contour methods are not so effective for some cases, because most masses possess very blurry margin that easily induce the contour leaking. To the end, this paper presents an improved geometric active contour for mass segmentation. It firstly introduces the morphological concentric layer model for automatically initializing. Then an embedded level set is used to extract the adaptive shape constraints. For refining the boundary, a new shape constraint function and stopping function are designed for the enhanced geometric active contour method. The proposed method is tested on real mammograms containing masses, and the results suggest that the proposed method could effectively restrain the contour leaking and get better segmented results than general active contour methods. &copy; 2009 Springer Berlin Heidelberg.

Number of references:17

Main heading:Computational methods

Controlled terms:Computer aided diagnosis - Image analysis - Level measurement - Mammography - X ray screens

Uncontrolled terms:Active contour - Embedded level set - Mammogram - Mass segmentation - Shape constraint

Classification code:943.2 Mechanical Variables Measurements - 921 Mathematics - 746 Imaging Techniques - 741 Light, Optics and Optical Devices - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 462.1 Biomedical Equipment, General - 461.7 Health Care - 461.1 Biomedical Engineering - 422.1 Strength of Building Materials : Test Equipment

DOI:10.1007/978-3-642-03767-2_121

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20091111950704

Title:Erratum: Principle and analysis of the moving-optical-wedge interferometer (Applied Optics (2008) 47 (2186))

Authors:Yang, Qinghua (1); Zhou, Renkui (1); Zhao, Baochang (1)

Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China; (2) Graduate University, Chinese Academy of Sciences, Beijing, 100039, China

Corresponding author:Yang, Q.(y00102@gmail.com)

Source title:Applied Optics

Abbreviated source title:Appl. Opt.

Volume:48

Issue:5

Issue date:February 10, 2009

Publication year:2009

Pages:957

Language:English

ISSN:00036935

CODEN:APOPAI

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Avenue NW, Washington, DC 20036-1023, United States

DOI:10.1364/AO.48.000957

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 49>

 

Accession number:20094712478941

Title:Spatially modulated interference hadamard transform spectral imager

Authors:Zhou, Jin-Song (1); Xiangli, Bin (1); Wei, Ru-Yi (1)

Author affiliation:(1) Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate University, Chinese Academy of Sciences, Beijing 100049, China; (3) Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100190, China

Corresponding author:Zhou, J.-S.(jszhou@opt.ac.cn)

Source title:Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis

Abbreviated source title:Guang Pu Xue Yu Guang Pu Fen Xi

Volume:29

Issue:11

Issue date:November 2009

Publication year:2009

Pages:3163-3166

Language:Chinese

ISSN:10000593

CODEN:GYGFED

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:The principle and instrumental structure of dispersion Hadamard transform spectral imager were briefly described in the present paper, and the disadvantages of the imager both in dislocation of spatial and spectral information and in spectral resolution limited by the width of Hadamard encoding mask were pointed out. A new instrumental principle and design of spatially modulated interference Hadamard transform spectral imager was proposed. A lateral shearing interferometer was used to acquire interference signals of all the Hadamard encoding information at different optical path difference. Then the methods of Fourier transform and Hadamard transform for interferogram were performed to acquire the spectra of objectives. Theory analysis of this imager demonstrated that the modulation of interferogram would not be affected by some factors such as the form and size of Hadamard encoding mask, and the spectral resolution would not be influenced by the size of Hadamard encoding mask. Furthermore, such technique not only effectively eradicated the dislocation of spatial information and spectral information existing in dispersion Hadamard transform spectral imager, but also made it convenient to image with high-throughput, high spatial resolution and high spectral resolution.

Number of references:14

Main heading:Fourier transforms

Controlled terms:Dispersions - Encoding (symbols) - Image sensors - Interferometry - Modulation - Shearing - Spectral resolution

Uncontrolled terms:Encoding informations - Encoding masks - Hadamard - Hadamard transform - Hadamard transforms - High spatial resolution - High spectral resolution - High-throughput - Interference signal - Interferograms  - Lateral shearing interferometer - Optical path difference - Spatial informations - Spatial modulation - Spectral imager - Spectral information

Classification code:941.4 Optical Variables Measurements - 921.3 Mathematical Transformations - 801.3 Colloid Chemistry - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 951 Materials Science - 723.2 Data Processing and Image Processing - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 604.1 Metal Cutting - 535.1 Metal Rolling - 718 Telephone Systems and Related Technologies; Line Communications

DOI:10.3964/j.issn.1000-0593(2009)11-3163-04

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20090511880362

Title:Experimental investigation into femtosecond fiber ring laser with passive mode locking

Authors:Xie, Xiaoping (1); Zhang, Jian-Guo (1); Wen, Yu (2); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17 Xinxi Road, Xi'an, Shaanxi 710000, China; (2) Xi'An Communication College, Chang'an District, Xi'an, Shaanxi 710000, China; (3) Department of Electrical, Computer and Communications Engineering, London South Bank University, 103 Borough Road, London SE1 0AA, United Kingdom

Corresponding author:Xie, X.(westforumer@gmail.com)

Source title:Microwave and Optical Technology Letters

Abbreviated source title:Microwave Opt Technol Lett

Volume:51

Issue:1

Issue date:January 2009

Publication year:2009

Pages:63-67

Language:English

ISSN:08952477

CODEN:MOTLEO

Document type:Journal article (JA)

Publisher:John Wiley and Sons Inc., P.O.Box 18667, Newark, NJ 07191-8667, United States

Abstract:A passively mode-locked Er<sup>3+</sup>-doped fiber ring laser is experimentally investigated, with the emphasis on its practical design by considering the effects of ring cavity length, pumping light power, and optical amplification on the femtosecond optical pulses obtained. It is shown that the designed fiber ring laser can operate at the center wave-length of 1550 nm to produce a train of periodic optical pulses with full width at half maximum (FWHM) of 270 fs, repetition frequency of 20 MHz, and average output optical power of 146 &mu;W. The resulting femtosecond optical pulses are then amplified by using three kinds of Er<sup>3+</sup>-doped optical fibers with different lengths and Er<sup>3+</sup>-doped concentrations, respectively, while employing the same pumping laser. In the experiments, both the FWHM of amplified optical pulses and the amplifier gain are measured under different conditions. The optimization of optical pulse width is also carried out in terms of pumping light power. &copy; 2008 Wiley Periodicals, Inc.

Number of references:14

Main heading:Pulsed laser applications

Controlled terms:Amplification - Electromagnetic pulse - Erbium - Fiber lasers - Fibers - Full width at half maximum - Laser mode locking - Laser pulses - Lasers - Light pulse generators  - Optical fibers - Polarization - Pumping (laser) - Pumps - Ring lasers - Rotation

Uncontrolled terms:Er<sup>3+</sup>-doped fiber - Femtosecond fiber laser - Fiber ring laser - Nonlinear polarization rotation - Passively mode-locked laser - Ultra-short optical pulses

Classification code:744 Lasers - 744.1 Lasers, General - 744.4 Solid State Lasers - 744.9 Laser Applications - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 921 Mathematics - 931.1 Mechanics - 741.3 Optical Devices and Systems - 547.2 Rare Earth Metals - 601.1 Mechanical Devices - 618.2 Pumps - 701 Electricity and Magnetism - 701.1 Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 713.1 Amplifiers - 741.1 Light/Optics - 741.1.2 Fiber Optics

DOI:10.1002/mop.23985

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 51>

 

Accession number:20101212792261

Title:Application of pseudo-random sequence in lidar ranging

Authors:Ye, Shun-Liu (1); Zhu, Shao-Lan (1); Sun, Qi-Bing (1); Yan, De-Ke (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate University, Chinese Academy of Sciences, Beijing 100039, China

Corresponding author:Ye, S.-L.(yeshunliu@opt.ac.cn)

Source title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Abbreviated source title:Proc. - Int. Conf. Inf. Eng. Comput. Sci., ICIECS

Monograph title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Issue date:2009

Publication year:2009

Article number:5364645

Language:English

ISBN-13:9781424449941

Document type:Conference article (CA)

Conference name:2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Conference date:December 19, 2009 - December 20, 2009

Conference location:Wuhan, China

Conference code:79561

Sponsor:Wuhan University; Huazhong Normal University; Wuhan University of Technology; National Technology University of Ukraine; Columbia University

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:A way of laser ranging was proposed based on autocorrelation property of pseudo-random sequence. The hardware platform of laser ranging was designed and the plan of echo-signal's recognition was given in which the bit width and the period of pseudo-random sequence were detected. The delaying time of the echo signal was also determined according to the auto-correlation properties of pseudo-random sequence. The influences of the coherent accumulation gain and the error bits of the echo signal on the accuracy of laser ranging were analyzed later. The simulation results show that the coherent accumulation gain can improve the signal to noise rate (SNR) and error bits must be less than 13 in 31-bit pseudo-random sequence. &copy;2009 IEEE.

Number of references:6

Main heading:Bit error rate

Controlled terms:Computer science - Correlation detectors - Error analysis - Optical radar - Signal to noise ratio

Uncontrolled terms:Autocorrelation properties - Autocorrelation property - Bit-Width - Echo signals - Echo-signal - Hardware platform - Laser ranging - Pseudorandom sequences - Signal to noise rate - Simulation result

Classification code:741.3 Optical Devices and Systems - 723.1 Computer Programming - 723 Computer Software, Data Handling and Applications - 722 Computer Systems and Equipment - 721 Computer Circuits and Logic Elements - 921.6 Numerical Methods - 718 Telephone Systems and Related Technologies; Line Communications - 716.2 Radar Systems and Equipment - 716.1 Information Theory and Signal Processing - 716 Telecommunication; Radar, Radio and Television - 713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers - 717 Optical Communication

DOI:10.1109/ICIECS.2009.5364645

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 52>

 

Accession number:20100912741043

Title:Active optics application in correcting the surface quality of traditional mirrors

Authors:Duan, Xueting (1); Zhou, Renkui (1); Wei, Shungen (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an, Shaanxi 710119, China; (2) Graduate University of Chinese Acad. of Sci., Beijing 100049, China

Corresponding author:Duan, X.(duanxt126@126.com)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:SUPPL. 2

Issue date:December 2009

Publication year:2009

Pages:58-61

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:The active optical technique on traditional optical accessory especially on large aperture mirrors in order to get better surface quality and small wavefront error of the optical system is discussed. The test is based on &phi;640 mm spherical surface, which is made of K9 optical glass. The surface quality is corrected by active controller, and the wavefront error of the system is reduced in evidence. The results show that the active optical technique can also be applied on traditional optical accessory.

Number of references:6

Main heading:Optical collimators

Controlled terms:Mirrors - Optical glass - Optical systems - Wavefronts

Uncontrolled terms:Active controller - Active Optics - Focal lengths - Large aperture - Optical accessories - Optical fabrication - Optical technique - Spherical surface - Surface qualities - Wavefront errors

Classification code:711 Electromagnetic Waves - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 751.1 Acoustic Waves - 812.3 Glass - 941.3 Optical Instruments

DOI:10.3788/CJL200936s2.0058

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092812177183

Title:Optical absorption spectra and motion of polarization wavepacket in semiconductor superlattices driven by terahertz fields

Authors:Zhang, Tongyi (1); Zhao, Wei (1); Fan, Wenhui (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 910119, China

Corresponding author:Zhang, T.(tyzhang@opt.ac.cn)

Source title:Guangxue Xuebao/Acta Optica Sinica

Abbreviated source title:Guangxue Xuebao

Volume:29

Issue:SUPPL.

Issue date:June 2009

Publication year:2009

Pages:125-129

Language:Chinese

ISSN:02532239

CODEN:GUXUDC

Document type:Journal article (JA)

Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China

Abstract:Under the one-dimensional tight-binding miniband and contact interaction approximation, the extended semiconductor Bloch equation is employed to investigate the optical absorption spectra and evolution of the polarization wavepacket in semiconductor superlattices driven by a terahertz field, after the excitation by a femtosecond laser pulse. Under a direct current (DC) bias, the optical absorption spectrum changes from the absorption band in the case of zero field into a series of equal-distant peaks, so-called Wannier-Stark ladder, with the energy distance being proportional to the field strength. The Wannier-Stark ladder is the counterpart (in the frequency domain) of the periodic oscillation of electrons and holes in real space and in momentum space, i.e. Bloch oscillation. Under a THz alternating current (AC) field, the absorption spectrum also consists of a series of peaks, called dynamical Stark ladder, however, the energy distance is equal to the photon energy of the applied THz field and is independent on the field strength. Furthermore, the absorption edge is shifted. When a DC field and a THz field present simultaneously, the absorption edge does not shift, and the spectrum becomes richer. But the complicated features can be interpreted and identified by the combination of the Wannier-Stark ladder and the dynamical Stark ladder. The ratio of the Bloch frequency to the frequency of THz field and the ratio of field strength of the THz field to the frequency of THz field are two determinant quantities. If the ratio of the Bloch frequency to the frequency of THz field is an integer n, then n-order harmonic wave of THz photon is generated in one Bloch frequency. If the ratio of the Bloch frequency to the frequency of THz field is a fraction, then dynamical fractional Stark ladder is formed. On the contrary to this, the ratio of field strength of the THz field to the frequency of THz field determines the spatial extension of the polarization wavepacket.

Number of references:14

Main heading:Semiconductor superlattices

Controlled terms:Absorption - Absorption spectra - Absorption spectroscopy - Equations of motion - Excitons - Ladders - Laser excitation - Light absorption - Light polarization - Optical materials  - Photons - Polarization - Pulsed laser applications - Spectrum analysis - Ultrashort pulses - Wave packets

Uncontrolled terms:Absorption band - Absorption edges - Alternating current fields - Bloch frequency - Bloch oscillations - Contact interaction - DC field - Direct current - Electrons and holes - Femtosecond laser pulse  - Field strengths - Frequency domains - Harmonic wave - Integer-N - Miniband - Momentum spaces - Optical absorption spectrum - Optical polarization - Periodic oscillation - Photon energy  - Real-space - Semiconductor Bloch equation - Semiconductor Bloch equations - Spatial extension - Stark ladder - Terahertz field - Terahertz fields - THz fields - THz photon - Tight binding  - Wannier-Stark ladder - Zero fields

Classification code:944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 931.3 Atomic and Molecular Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 931.1 Mechanics - 922.2 Mathematical Statistics - 921.2 Calculus - 921 Mathematics - 931.4 Quantum Theory; Quantum Mechanics - 941 Acoustical and Optical Measuring Instruments - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 942 Electric and Electronic Measuring Instruments - 943 Mechanical and Miscellaneous Measuring Instruments - 933.1 Crystalline Solids - 802.3 Chemical Operations - 801.4 Physical Chemistry - 405.1 Construction Equipment - 701.1 Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 711.2 Electromagnetic Waves in Relation to Various Structures - 712.1 Semiconducting Materials - 714.2 Semiconductor Devices and Integrated Circuits - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 744.9 Laser Applications - 801 Chemistry

DOI:10.3788/AOS200929S1.125

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20084711722815

Title:Spectrum shape compression and pedestal elimination employing a Sagnac loop

Authors:Jintao, Tao (1); Hongjun, Liu (1); Cunxiao, Gao (1); Wei, Zhao (1); Yishan, Wang (1); Guofu, Chen (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, P.O. Box Xi'an 80(25), Xi'an, China

Corresponding author:Hongjun, L.(liuhongjun@opt.ac.cn)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:1

Issue date:January 1, 2009

Publication year:2009

Pages:74-77

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:We report on the experimental demonstration of a spectrum shaping filter, which is formed by inserting a fiber polarization controller (PC) in to a Sagnac loop. Pedestal free and narrow spectrum with line width at 1.4-1.7 nm is obtained, which is advantageous for further power amplification and effective frequency doubling. &copy; 2008 Elsevier B.V. All rights reserved.

Number of references:9

Main heading:Power spectrum

Controlled terms:Amplification - Data compression

Uncontrolled terms:Line widths - Pedestal elimination - Polarization controllers - Power amplifications - Sagnac loop - Sagnac loops - Spectrum compression - Spectrum shapes - Spectrum shaping

Classification code:941 Acoustical and Optical Measuring Instruments - 921 Mathematics - 751.1 Acoustic Waves - 741.1 Light/Optics - 723.2 Data Processing and Image Processing - 722.3 Data Communication, Equipment and Techniques - 716.1 Information Theory and Signal Processing - 713.1 Amplifiers - 711 Electromagnetic Waves

DOI:10.1016/j.optcom.2008.09.051

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20141617583231

Title:High resolution ultra-rapid-scanning fourier transform spectrometry

Authors:Zhou, Jinsong (1); Wei, Ruyi (1); Li, Siyuan (1); Gao, Xiaohui (1); Jing, Juanjuan (1); Wu, Qiongshui (2)

Author affiliation:(1) Laboratory of Spectral Imaging Technology, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China; (2) Electronic Information School, Wuhan University, Wuhan, 430079, China

Corresponding author:Wei, R.(weiruyi5@yahoo.com.cn)

Source title:Optics InfoBase Conference Papers

Abbreviated source title:Opt.InfoBase Conf. Papers

Monograph title:Fourier Transform Spectroscopy, FTS 2009

Issue date:2009

Publication year:2009

Language:English

E-ISSN:21622701

ISBN-13:9781557528711

Document type:Conference article (CA)

Conference name:Fourier Transform Spectroscopy, FTS 2009

Conference date:April 26, 2009  -  April 30, 2009

Conference location:Vancouver, Canada

Conference code:104332

Publisher:Optical Society of America

Abstract:A new interferometer without cube corner used in ultra-rapid-scanning Fourier Transform spectrometry is described, which is possible to produce much higher spectral resolution with much less bulk, as well as with lower technological requirement. &copy; 2009 Optical Society of America.

Number of references:7

Main heading:Spacecraft instruments

Controlled terms:Spectrometry - Spectroscopy

Uncontrolled terms:Fourier transform spectrometry - High resolution

Classification code:655.1 Spacecraft, General - 801 Chemistry

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094812500421

Title:Simulation analysis of the antenna structure for terahertz generation

Authors:Yang, Jian (1); Fan, Wen-Hui (1); Xue, Bing (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, Shaanxi, China

Corresponding author:Fan, W.-H.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7385

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Terahertz and High Energy Radiation Detection Technologies and Applications

Issue date:2009

Publication year:2009

Pages:73851X

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476661

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:78571

Sponsor:Photoelectric Technology Professional Committee; Chinese Society of Astronautics

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The research on terahertz (THz) fields exists for decades of years, because of its promising applications in imaging, medical diagnosis, security inspection, information communication, etc. There are many ways to generate THz pulses, such as photoconductive effect, optical rectification, photomixing, and so on. For the detection of THz pulses, two methods, free space electro-optic sampling (FS-EOS) and photoconductive (PC) sampling, can be normally used. In our previous experiments, the photoconductive effect has been utilized to generate THz radiation from a piece of semiconductor with antenna structure. The amplitude of THz signals was found to be proportional to the magnitude of the electric field. To understand this more clearly and try to get better THz signals, simulation analysis of the electric field in between the electrodes of the photoconductive antenna has been done, and a optimized antenna structure which will be more efficient than the parallel dipolar electrodes has been designed based on the simulation analysis. &copy; 2009 SPIE.

Number of references:10

Main heading:Pulse generators

Controlled terms:Antennas - Diagnosis - Electric field measurement - Electric fields - Electrodes - High energy physics - Medical imaging - Microwave antennas - Optical communication - Photoconductivity  - Signal detection

Uncontrolled terms:Antenna structures - Electric field simulation - Electrooptic sampling - Free space - In-between - Information communication - Medical diagnosis - Optical rectifications - Photoconductive antennas - Photoconductive effect  - Photomixing - Simulation analysis - Terahertz - Terahertz generation - Terahertz pulse - THz pulse - THz radiation - THz signal

Classification code:717.1 Optical Communication Systems - 723.2 Data Processing and Image Processing - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 746 Imaging Techniques - 932.1 High Energy Physics - 942.2 Electric Variables Measurements - 716.1 Information Theory and Signal Processing - 461.1 Biomedical Engineering - 461.6 Medicine and Pharmacology - 701.1 Electricity: Basic Concepts and Phenomena - 704.1 Electric Components - 713.4 Pulse Circuits - 714.1 Electron Tubes - 716 Telecommunication; Radar, Radio and Television

DOI:10.1117/12.835803

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20091311979746

Title:Modeling and analysis of dialyte-lens auto-focusing technology for theodolite

Authors:Wu, Lin-Tao (1); Qiao, Yan-Feng (1); Wu, Deng-Ke (2); Cai, Sheng (1)

Author affiliation:(1) Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100039, China; (3) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an 710119

Corresponding author:Wu, L.-T.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7160

Monograph title:2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications

Issue date:2009

Publication year:2009

Article number:71602E

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications

Conference date:November 16, 2008 - November 19, 2008

Conference location:Beijing, China

Conference code:75971

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:In order to realize real-time auto-focusing for theodolite, lens-apart method was designed with the corresponding math model built and analyzed. An Object beam splitted after the first image surface of the theodolite traveled through two dialyte lens and then was imaged on CCD. The distance between two spots when exactly focused was set as the calibration value, and the relationship between defocus distance and spot offset was given. The influence of tracking center shift and divergence angle etc. on focusing accuracy was analyzed. Compared with the traditional focusing method, this scheme has a higher accuracy, faster calculation , higher tolerance for environment temperature and a simpler construction. The experiment result exhibited a resolution higher than 0.056mm, which shows a bright engineering application prospect for this method. &copy; 2009 SPIE.

Number of references:9

Main heading:Optical instruments

Controlled terms:Applications - Charge coupled devices - Focusing - Lenses - Measurement theory - Model buildings - Technology

Uncontrolled terms:Auto-focusing - Calibration values - Defocus distances - Dialyte lens - Divergence angles - Engineering applications - Environment temperatures - Image surfaces - Math models - Modeling and analysis  - Object beams - Shift ands - Theodolite

Classification code:922 Statistical Methods - 901 Engineering Profession - 751.1 Acoustic Waves - 741.3 Optical Devices and Systems - 941.3 Optical Instruments - 741.1 Light/Optics - 711.1 Electromagnetic Waves in Different Media - 451.2 Air Pollution Control - 402 Buildings and Towers - 714.2 Semiconductor Devices and Integrated Circuits

DOI:10.1117/12.806990

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093912340060

Title:Solid-core tellurite glass fiber for infrared and nonlinear applications

Authors:Lin, Aoxiang (1); Zhang, Aidong (1); Bushong, Elizabeth J. (3); Toulouse, Jean (1)

Author affiliation:(1) Center for Optical Technologies, Physics Department, Lehigh University, Bethlehem, PA 18015, United States; (2) State Key Laboratory of Transient Optics and Photonics, Xian Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China; (3) Franklin and Marshall College, Lancaster, PA 17604, United States

Corresponding author:Lin, A.(aoxiang.research@email.com)

Source title:Optics Express

Abbreviated source title:Opt. Express

Volume:17

Issue:19

Issue date:September 14, 2009

Publication year:2009

Pages:16716-16721

Language:English

E-ISSN:10944087

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:By optimizing glass composition and using a multistage dehydration process, a ternary 80TeO<inf>2</inf>- 10ZnO-10Na<inf>2</inf>O glass is obtained that shows excellent transparency in the wavelength range from 0.38 &mu;m up to 6.10 &mu;m. Based on this optimized composition, we report on the fabrication of a single-mode solid-core tellurite glass fiber with large mode area of 103 &mu;m<sup>2</sup> and low loss of 0.24&sim;0.7 dB/m at 1550 nm. By using the continuous-wave self-phase modulation method, the non-resonant nonlinear refractive index n<inf>2</inf> and the effective nonlinear parameter y of this made tellurite glass fiber were estimated to be 3.8&times;10<sup>-19</sup> m<sup>2</sup>/W and 10.6 W<sup>1</sup>&middot;km<sup>1</sup> at 1550 nm, respectively. &copy; 2009 Optical Society of America.

Number of references:15

Main heading:Glass fibers

Controlled terms:Dehydration - Refractive index - Sodium - Tellurium compounds - Zinc oxide

Uncontrolled terms:1550 nm - Continuous waves - Dehydration process - Glass compositions - Large mode area - Low loss - Non-linear parameters - Nonlinear applications - Nonlinear refractive index - Nonresonant  - Single mode - Tellurite glass fiber - Wavelength ranges - ZnO

Classification code:819.2 Synthetic Fibers - 812.3 Glass - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 802.2 Chemical Reactions - 741.1.2 Fiber Optics - 741.1 Light/Optics - 549.1 Alkali Metals - 413 Insulating Materials

DOI:10.1364/OE.17.016716

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093812841916

Title:Algorithmic research on multi-target capture for microspacecraft

Authors:Liu, Xiang (1); Hu, Bing-Liang (1); Shao, Xiu-Juan (1); Wei, Cui-Yu (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy Science, Xi'an 710068, China; (2) Graduate Student College, Chinese Academy Science, Beijing 100039, China

Corresponding author:Liu, X.(liuxiang@opt.ac.cn)

Source title:Yuhang Xuebao/Journal of Astronautics

Abbreviated source title:Yuhang Xuebao

Volume:30

Issue:4

Issue date:July 2009

Publication year:2009

Pages:1415-1420

Language:Chinese

ISSN:10001328

CODEN:YUXUD6

Document type:Journal article (JA)

Publisher:China Spaceflight Society, 2 Yuetan Beixiaojie, Beijing, 100830, China

Abstract:In order to capture the targets which were intermixed in the space background, a comparative different method based on the integration of eliminating rotation and distilling the centroid was introduced. Firstly, the effective background dots in the frame were labeled and centroid was distilled. Then, according to the referenced angle provided by the satellite orientation system, appropriate registration was made which can eliminate the rotation. Thirdly, according to the principle that the number of centroid which has the same coordinates reach the maximum when it is totally registration, the coordinates of the effective dots in the referenced frame were deleted, so gained the registration coordinates. At the last, comparative difference algorithm was used to wipe off the same background dots and obtain the targets. The stimulation result showed that the calculation was little; the probability of error was small. It can fit the multi-target capture of microspacecraft timely.

Number of references:7

Main heading:Algorithms

Controlled terms:Rotation - Targets

Uncontrolled terms:Algorithmic research - Centroid registration - Difference algorithms - Micro spacecrafts - Multitarget - Probability of errors

Classification code:601.1 Mechanical Devices - 723 Computer Software, Data Handling and Applications - 921 Mathematics - 931.1 Mechanics - 932.1.1 Particle Accelerators

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093712301277

Title:Fast haar transform based feature extraction for face representation and recognition

Authors:Pang, Yanwei (1); Li, Xuelong (2); Yuan, Yuan (3); Tao, Dacheng (4); Pan, Jing (5)

Author affiliation:(1) School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, Shaanxi, China; (3) School of Engineering and Applied Science, Aston University, Birmingham B4 7ET, United Kingdom; (4) School of Computer Engineering, Nanyang Technological University, Singapore 639798, Singapore; (5) Electronic Engineering Department, Tianjin University of Technology and Education, Tianjin 300222, China

Corresponding author:Pang, Y.(pyw@tju.edu.cn)

Source title:IEEE Transactions on Information Forensics and Security

Abbreviated source title:IEEE Trans. Inf. Forensics Secur.

Volume:4

Issue:3

Issue date:September 2009

Publication year:2009

Pages:441-450

Article number:5159453

Language:English

ISSN:15566013

Document type:Journal article (JA)

Publisher:Institute of Electrical and Electronics Engineers Inc., 3 Park Avenue, 17th Floor, New York, NY 10016-5997, United States

Abstract:Subspace learning is the process of finding a proper feature subspace and then projecting high-dimensional data onto the learned low-dimensional subspace. The projection operation requires many floating-point multiplications and additions, which makes the projection process computationally expensive. To tackle this problem, this paper proposes two simple-but-effective fast subspace learning and image projection methods, fast Haar transform (FHT) based principal component analysis and FHT based spectral regression discriminant analysis. The advantages of these two methods result from employing both the FHT for subspace learning and the integral vector for feature extraction. Experimental results on three face databases demonstrated their effectiveness and efficiency. &copy; 2006 IEEE.

Number of references:28

Main heading:Feature extraction

Controlled terms:Discriminant analysis - Face recognition - Principal component analysis

Uncontrolled terms:Face database - Face representation and recognition - Face representations - Fast algorithm - Fast Haar transforms - Feature subspace - Floating point multiplication - Haar transform - High dimensional data - Image projection  - Low-dimensional subspace - Subspace analysis - Subspace learning

Classification code:922.2 Mathematical Statistics - 922 Statistical Methods - 903.1 Information Sources and Analysis - 751.1 Acoustic Waves - 741.1 Light/Optics - 723.5 Computer Applications - 716 Telecommunication; Radar, Radio and Television

DOI:10.1109/TIFS.2009.2026455

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20100212625394

Title:Research progress of rare earth ions doped chalcogenide glasses for mid-infrared luminescence

Authors:Guo, Haitao (1); Lu, Min (1); Tao, Guangming (2); Feng, Lei (2); Peng, Bo (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Procession Mechanics, Chinese Academy of Science, Xi'an 710119, China; (2) State Key Laboratory for Advanced Photonic Materials and Devices, Fudan University, Shanghai 200433, China

Corresponding author:Peng, B.(bpeng@opt.ac.cn)

Source title:Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

Abbreviated source title:Kuei Suan Jen Hsueh Pao

Volume:37

Issue:12

Issue date:December 2009

Publication year:2009

Pages:2150-2156

Language:Chinese

ISSN:04545648

CODEN:KSYHA5

Document type:Journal article (JA)

Publisher:Chinese Ceramic Society, Baiwanzhuang, Beijing, 100831, China

Abstract:The mid-infrared laser in the range of 2-5 &mu;m has been developed to apply to the fields of remote sensing, ranging, environmental monitoring, biological engineering and medical treatment, etc.. Luminescence emission from the rare-earth ions in chalcogenide glass fiber which was pumped by solid-state laser is an effective and direct way to obtain the mid-infrared laser in the region of 2-5 &mu;m. This review represents the recent development on the studies of rare-earth doped chalcogenide glass for mid-infrared luminescence abroad and analyzed the factors influencing the mid-infrared luminescence in chalcogenide glass. Further studies on this aspect were mentioned and prospected.

Number of references:40

Main heading:Infrared lasers

Controlled terms:Glass fibers - Glass lasers - Infrared devices - Lasers - Luminescence - Metal ions - Optical parametric oscillators - Pumping (laser) - Rare earth elements - Rare earths  - Remote sensing - Research

Uncontrolled terms:Biological engineering - Chalcogenide glass - Chalcogenide glass fibers - Chalcohalide glass - Environmental Monitoring - Luminescence emission - Medical treatment - Midinfrared - Midinfrared lasers - Rare earth doped  - Rare earth ions - Research progress

Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 901.3 Engineering Research - 744.9 Laser Applications - 812.3 Glass - 819.2 Synthetic Fibers - 804.2 Inorganic Compounds - 741.1 Light/Optics - 731.1 Control Systems - 413 Insulating Materials - 481.2 Geochemistry - 531.1 Metallurgy - 533 Ore Treatment and Metal Refining - 547.2 Rare Earth Metals - 713.2 Oscillators

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 62>

 

Accession number:20101212791967

Title:Image denoising algorithm via doubly bilateral filtering

Authors:Zhou, Zuo-Feng (1); Cao, Jian-Zhong (1); Wang, Hao (1); Liu, Wei-Hua (2)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China; (2) School of Electronics and Information, Northwestern Polytechnical University, Xi'an, China

Corresponding author:Zhou, Z.-F.(zfzhou@opt.ac.cn)

Source title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Abbreviated source title:Proc. - Int. Conf. Inf. Eng. Comput. Sci., ICIECS

Monograph title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Issue date:2009

Publication year:2009

Article number:5363149

Language:English

ISBN-13:9781424449941

Document type:Conference article (CA)

Conference name:2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Conference date:December 19, 2009 - December 20, 2009

Conference location:Wuhan, China

Conference code:79561

Sponsor:Wuhan University; Huazhong Normal University; Wuhan University of Technology; National Technology University of Ukraine; Columbia University

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:The classical bilateral filtering is a simple and effective non-iterative image denoising method in spatial domain which can smooth the noisy images while preserving edges well. To further improve the denoising performance, an image deonoising algorithm via doubly bilateral filtering is proposed. We first use the bilateral filtering to get the pilot image. Then, using the information of the pilot image, the second bilateral filtering is used to get the final denoised image. Experiment results show that the proposed image denoising algorithm achieves better performance than the classical bilateral filtering method. &copy;2009 IEEE.

Number of references:12

Main heading:Edge detection

Controlled terms:Computer science - Image enhancement

Uncontrolled terms:Bilateral filtering - De-noising - Image de-noising - Image denoising algorithm - Image denoising methods - Noisy image - Non-iterative - Spatial domains

Classification code:751.1 Acoustic Waves - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 722 Computer Systems and Equipment - 721 Computer Circuits and Logic Elements - 716 Telecommunication; Radar, Radio and Television

DOI:10.1109/ICIECS.2009.5363149

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20093812313371

Title:Research on focal length determination technique of laser test system based on Talbot effect

Authors:Wu, Ling-Ling (1); Zheng, Li (4); Wu, Guo-Jun (1); Cang, Yu-Ping (1); Chen, Liang-Yi (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School of the Chinese, Academy of Sciences, Beijing 100039, China; (3) Measurement and Control Technology and Instrumentation, School of Optoelectronic Engineering, Xi'an Technological University, Xi'an 710032, China; (4) Henan Institute of Metrology, Zhengzhou 450008, China

Corresponding author:Wu, L.-L.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7283

Monograph title:4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment

Issue date:2009

Publication year:2009

Article number:72834H

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819475435

Document type:Conference article (CA)

Conference name:4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment

Conference date:November 19, 2008 - November 21, 2008

Conference location:Chengdu, China

Conference code:76829

Sponsor:The Chinese Optical Society (COS); CAS, The Institute of Optics and Electronics (IOE); State Key Laboratory of Optical Technology for Microfabrication; Sichuan Optical Society (SOS)

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:A method for measuring focal length based on Talbot effect is put forward, which suits determining focal length of long-focus lens. The variation of Moire&acute; fringes occurs after typical phase object of measuring lens is laid between two gratings. The images of fringes taken by CCD camera are processed with MATLAB. The focal length of measuring lens is figured out accurately after calculating the slope of fringes, the separation angle between two grating lines and measuring the distance between lens and the second grating. Experimental data indicate that, for a system with laser wavelength of 0.65&mu;m, measuring lens wth focal length of 420mm, the measurement accuracy is 0.10%.So this method has advantages of simple device, fast processing speed and high precision. It satisfies focal length determination of long focal-length lens used in SG-III Facility. &copy; 2009 SPIE.

Number of references:7

Main heading:Focusing

Controlled terms:Cameras - Lenses - MATLAB - Measurement theory - Optical data processing - Optical instruments - Optical testing - Optical variables measurement - Technology

Uncontrolled terms:Experimental data - Focal length determination - Focal lengths - Focus lens - High precision - Laser test - Laser wavelength - Measurement accuracy - Optical measurement - Phase object  - Processing speed - Talbot effect - Talbot effects

Classification code:941.4 Optical Variables Measurements - 941.3 Optical Instruments - 922 Statistical Methods - 921 Mathematics - 901 Engineering Profession - 751.1 Acoustic Waves - 742.2 Photographic Equipment - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 723.1.1 Computer Programming Languages - 711.1 Electromagnetic Waves in Different Media

DOI:10.1117/12.828827

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20140817361937

Title:Polarization and wavelength channel drop filters based on two-dimensional photonic crystal

Authors:Zhang, Wenfu (1); Liu, Jihong (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; (3) Department of Electronic and Information Engineering, Xi'an Institute of Post and Telecommunications, Xi'an 710061, China

Source title:Optics InfoBase Conference Papers

Abbreviated source title:Opt.InfoBase Conf. Papers

Monograph title:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

Issue date:2009

Publication year:2009

Language:English

E-ISSN:21622701

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2009

Conference date:August 30, 2009  -  September 3, 2009

Conference location:Shanghai, China

Conference code:102747

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:A new type of device named polarization and wavelength channel drop filter (PW-CDF) designed by two-dimensional photonic crystal is proposed. The PW-CDF has compound functions of polarization beam splitter (PBS) and CDF at the operating wavelength. &copy; 2009 IEEE.

Number of references:7

Main heading:Polarization

Controlled terms:Photonic crystals

Uncontrolled terms:Operating wavelength - Polarization beam splitters - PW-CDF - Two-dimensional photonic crystals - Wavelength channels

Classification code:711.1 Electromagnetic Waves in Different Media - 933.1 Crystalline Solids

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 65>

 

Accession number:20100412666509

Title:Ultrafast laser propagation in waveguide arrays

Authors:Zhang, Yan (1); Huo, Guang-Wen (1); Wang, Yi-Shan (1); Zhao, Wei (1); Cheng, Guang-Hua (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100049, China

Corresponding author:Zhang, Y.(zhangyan@opt.ac.cn)

Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser

Abbreviated source title:Guangdianzi Jiguang

Volume:20

Issue:12

Issue date:December 2009

Publication year:2009

Pages:1584-1588

Language:Chinese

ISSN:10050086

CODEN:GUJIE9

Document type:Journal article (JA)

Publisher:Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China

Abstract:Nonlinear refractive index generated by ultrashort pulse laser in waveguide array leads normally to discrete nonlinear localization and discrete spatial soliton. By the simulation, it is shown that the nonlinear localization depends on the refractive index changes of waveguide array. While refractive index changes of waveguide array is small, the delocalization is possible. Nonlinear localization and delocalization are decided by the relationship between initiate refractive index change of waveguide array, nonlinear refractive index, and saturation refractive index change which corresponds to optimal coupling constant. The nonlinear localization and delocalization are also observed by using a high repetition- rate femtosecond laser inscription waveguide array injected by low repetition rate femtosecond laser.

Number of references:18

Main heading:Refractometers

Controlled terms:Light refraction - Pulsed laser applications - Refractive index - Semiconductor quantum wells - Solitons - Ultrafast lasers - Ultrashort pulses - Waveguides

Uncontrolled terms:Coupling constants - Delocalizations - Discrete spatial solitons - Femto-second laser - High repetition - Low repetition rate - Nonlinear localization - Nonlinear refractive index - Refractive index changes - Ultra-short pulse laser  - Ultrafast laser - Waveguide array

Classification code:941.3 Optical Instruments - 931.3 Atomic and Molecular Physics - 921.1 Algebra - 744.9 Laser Applications - 744.1 Lasers, General - 741.1 Light/Optics - 714.3 Waveguides - 714.2 Semiconductor Devices and Integrated Circuits - 712.1 Semiconducting Materials

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092712172184

Title:Enhancement method for X-ray image using rough sets and human visual system

Authors:Ouyang, Chengsu (1); Yuan, Jun (2); Tian, Junwei (1); Huang, Yongxuan (1)

Author affiliation:(1) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China; (2) Xi'an Xijing Optical and Electrical Instrument Co. Ltd., Xi'an 710068, China

Corresponding author:Ouyang, C.

Source title:Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University

Abbreviated source title:Hsi An Chiao Tung Ta Hsueh

Volume:43

Issue:6

Issue date:June 2009

Publication year:2009

Pages:48-51+56

Language:Chinese

ISSN:0253987X

CODEN:HCTPDW

Document type:Journal article (JA)

Publisher:Xi'an Jiaotong University, West Xian Ning Road 28, Xi'an, 710049, China

Abstract:The X-ray image from direct digital radiography system is captured in non-uniform and low illumination conditions,and is blurred by noise. A new enhancing method is proposed on the basis of rough set theory and human visual system (HREM). The grays of the original image are stretched, and then the stretched image is used to generate two new images (edge-detail image and smooth image) using the rough set theory and the human visual system. The edge-detail and smooth images are enhanced by the exponential transform and histogram equalization, respectively. Finally, the two enhanced images are overlapped into one image, and the random impulse noise in the overlapped image is reduced. Experimental results show that the HREM method can suppress noise while preserving edge and detail element, and enhance visual effect effectively.

Number of references:15

Main heading:Rough set theory

Controlled terms:Fuzzy sets - Image enhancement - Visual communication - X ray analysis - X ray apparatus - X ray radiography

Uncontrolled terms:Digital radiography - Histogram equalizations - Human visual system - Illumination conditions - Nonuniform - Original images - Random impulse - Rough set - Visual effects - X-ray image

Classification code:951 Materials Science - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 921 Mathematics - 801 Chemistry - 741 Light, Optics and Optical Devices - 723.2 Data Processing and Image Processing - 717.1 Optical Communication Systems - 716.4 Television Systems and Equipment - 462.1 Biomedical Equipment, General - 461.1 Biomedical Engineering - 422.2 Strength of Building Materials : Test Methods - 422.1 Strength of Building Materials : Test Equipment - 421 Strength of Building Materials; Mechanical Properties

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20092212102846

Title:Research on some problems for rotating mirror camera

Authors:Jingzhen, Li (1); Xianxian, Tan (2); Fengshan, Sun (3); Xiangdong, Gong (1); Hongbin, Huang (1)

Author affiliation:(1) College of Electronic Science and Technology, Shenzhen University, Shenzhen, 518060, China; (2) Institute of Fluid Physics, China Academy of Engineering Physics, 610003, China; (3) Xian Institute of Optics and Precision Mechanics, Academia Sinica, Xian, 710000, China

Corresponding author:Jingzhen, L.(lijz@szu.edu.cn)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7126

Monograph title:28th International Congress on High-Speed Imaging and Photonics

Issue date:2009

Publication year:2009

Article number:71261E

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:28th International Congress on High-Speed Imaging and Photonics

Conference date:November 9, 2008 - November 14, 2008

Conference location:Canberra, Australia

Conference code:77144

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:Up to date, there has still been no electronic camera that can match a rotating mirror camera with film for the main features; therefore, it is necessary to further make R&amp;D work in field of rotating mirror cameras. In this paper, some key problems for this kind of camera have been discussed in detail, which cover the new information theory, the advanced techniques of the optical accelerating, the shape and size calculation of rotating mirror surface in any case, the non-beryllium rotating mirror with the same deformation as beryllium rotating mirror, and the perfect designing theory of camera obscura. &copy; 2009 SPIE.

Number of references:16

Main heading:Mirrors

Controlled terms:Beryllium - Cameras - Design - Image registration - Information theory - Rotation

Uncontrolled terms:Alveolate lateral structure - Non-beryllium rotating mirror - Oblique incidence - Optical accelerating - Spatial information factor - Temporal information factor

Classification code:902.1 Engineering Graphics - 742.2 Photographic Equipment - 741.3 Optical Devices and Systems - 723.2 Data Processing and Image Processing - 931.1 Mechanics - 716.1 Information Theory and Signal Processing - 549 Nonferrous Metals and Alloys - 542.1 Beryllium and Alloys - 408 Structural Design - 601.1 Mechanical Devices

DOI:10.1117/12.821433

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20094812508897

Title:Influence analysis of the scroll on the image quality of the satellite camera

Authors:Fan, Chao (1); Yi, Hong-Wei (2); Liang, Yi-Tao (1)

Author affiliation:(1) College of Information Science and Engineering, Henan University of Technology, Zheng Zhou; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China

Corresponding author:Fan, C.(anfan2003@tom.com)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7384

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Advances in Imaging Detectors and Applications

Issue date:2009

Publication year:2009

Article number:73840A

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476654

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:78570

Sponsor:Photoelectric Technology Professional Committee; Chinese Society of Astronautics

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The object distance of the high-resolution satellite camera will be changed when the camera is scroll imaging, which will cause not only the alteration of the image scale, but also the variation of the velocity-height ratio (V/H) of the satellite. The change of the V/H of the camera will induce the asynchronization between the image motion and the traveling of the charge packet on the focal plane, which will deteriorate the image quality of camera seriously. Thus, the variable regulation of the relative velocity and the height of the scroll imaging of the satellite were researched, and the expression the V/H was deduced. Based on this, the influence of the V/H on the image quality was studied from two variable factors: the latitude and the scroll angle. To illustrate this effect quantitatively, using a given round polar orbit, the deterioration of the image quality caused by the scroll imaging was calculated for different integral number of the camera, and regulation interval of the row integration time and the range of the scroll angle were computed. The results showed that, when the integral number of the camera is equal to 32 and 64, the permitted scroll angle are equal to 29.5&deg; and 16&deg; respectively for MTFimage motion &gt;0.95, which will give some helpful engineering reference to learn how the image quality changes during scroll imaging of the satellite camera. &copy; 2009 SPIE.

Number of references:5

Main heading:Image quality

Controlled terms:Cameras - Detectors - Laws and legislation - Satellites - Velocity

Uncontrolled terms:Asynchronization - Charge packets - Focal Plane - Height ratio - High resolution - Image motion - Image scale - Influence analysis - Integral numbers - Integration time  - Object distance - Polar orbit - Relative velocity - Satellite cameras

Classification code:971 Social Sciences - 931.1 Mechanics - 914 Safety Engineering - 902.3 Legal Aspects - 742.2 Photographic Equipment - 741 Light, Optics and Optical Devices - 655.2 Satellites

DOI:10.1117/12.834163

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 69>

 

Accession number:20141617587055

Title:Composition optimization of tellurite glass for low-loss and robust fiber fabrication

Authors:Lin, Aoxiang (1); Zhang, Aidong (1); Toulouse, Jean (1)

Author affiliation:(1) Center for Optical Technologies and Physics Department, Lehigh University, Bethlehem, PA 18015, United States; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy of Sciences (CAS), Xi'an 710119, China

Source title:Optics InfoBase Conference Papers

Abbreviated source title:Opt.InfoBase Conf. Papers

Monograph title:Asia Communications and Photonics Conference and Exhibition, ACP 2009

Issue date:2009

Publication year:2009

Language:English

E-ISSN:21622701

ISBN-13:9781557528773

Document type:Conference article (CA)

Conference name:Asia Communications and Photonics Conference and Exhibition, ACP 2009

Conference date:November 2, 2009  -  November 6, 2009

Conference location:Shanghai, China

Conference code:104333

Publisher:Optical Society of America

Abstract:Tellurite glass with composition of 80TeO<inf>2</inf>-10ZnO-10Na<inf>2</inf>O (TZN-80) was made by melting and quenching techniques. This glass shows high transmission (&ge;80%) at 0.87~3.00 &mu;m and good IR transmission up to 6 &mu;m, and exhibits excellent physical properties against surface crystallization during fiber drawing. &copy; 2009 Optical Society of America.

Number of references:5

Main heading:Photonics

Controlled terms:Exhibitions - Glass - Tellurium compounds

Uncontrolled terms:Composition optimization - Fiber drawing - High transmission - Low-loss - Surface crystallization - Tellurite glass

Classification code:712 Electronic and Thermionic Materials - 717 Optical Communication - 744 Lasers - 804.1 Organic Compounds - 812.3 Glass - 902.2 Codes and Standards

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 70>

 

Accession number:20091111950693

Title:Liquid-filled microstructured polymer fibers as monolithic liquid-core array fibers

Authors:Wang, Jian (1); Wang, Lili (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Information Road 17, Xi'an, Shaanxi, 710119, China

Corresponding author:Wang, L.(liliwang@opt.ac.cn)

Source title:Applied Optics

Abbreviated source title:Appl. Opt.

Volume:48

Issue:5

Issue date:February 10, 2009

Publication year:2009

Pages:881-885

Language:English

ISSN:1559128X

E-ISSN:15394522

CODEN:APOPAI

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:Liquid-filled microstructured polymer optical fibers (MPOFs) as monolithic liquid-core array fiber are proposed and prepared by injecting high-refractive-index liquid into the holes array of the MPOFs. One example for potential applications is demonstrated as a new kind of coherent imaging fiber. It provides great potential for applications in chemical sensing, biosensors, and endoscopy, particularly in bifunctional detection. &copy; 2009 Optical Society of America.

Number of references:19

Main heading:Fibers

Controlled terms:Biosensors - Liquids - Optical fibers

Uncontrolled terms:Bifunctional - Chemical sensing - Coherent imaging - Holes arrays - Microstructured polymer optical fibers - Polymer fibers - Potential applications

Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 819.4 Fiber Products - 817 Plastics and Other Polymers: Products and Applications - 812 Ceramics, Refractories and Glass - 801.2 Biochemistry - 741.1.2 Fiber Optics - 732 Control Devices - 462.1 Biomedical Equipment, General - 461.8 Biotechnology

DOI:10.1364/AO.48.000881

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 71>

 

Accession number:20094612453406

Title:Static and transient thermal behavior of high power semiconductor lasers

Authors:Yuan, Zhenbang (1); Wang, Jingwei (2); Wu, Di (3); Chen, Xu (1); Liu, Xingsheng (2)

Author affiliation:(1) School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an, Shaanxi 710119, China; (3) Xi'an Focuslight Optoelectronics Technology Co. Ltd., Xi'an, Shaanxi 710119, China

Corresponding author:Yuan, Z.(yuanzb@focuslight.com.cn)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:8

Issue date:August 2009

Publication year:2009

Pages:1957-1962

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:High power semiconductor lasers have found increasing applications in many areas. The junction temperature rise may not only affect output power, slope efficiency, threshold current and lifetime, but also cause spectral broadening and wavelength shift, which makes thermal management one of the major obstacles of pump laser development. It is more and more crucial to carry out thermal design and optimization. This paper studied the steady and transient thermal behavior of a single-bar CS-packaged 60W 808 nm laser in continuous-wave state using numerical analysis method and experiments. Time constants, as well as thermal resistance and its compositions were quantificationally analyzed. Moreover, high power semiconductor lasers were produced based on the thermal design and optimization.

Number of references:7

Main heading:Semiconductor lasers

Controlled terms:Finite element method - High power lasers - Lasers - Power electronics - Pumping (laser)

Uncontrolled terms:Continuous-wave state - High power semiconductor laser - Junction temperatures - Laser bar - Output power - Pump laser - Slope efficiencies - Spectral broadening - Steady and transient - Thermal behavior  - Thermal behaviors - Thermal designs - Thermal management - Thermal resistance - Threshold currents - Time constants - Wavelength shift

Classification code:921.6 Numerical Methods - 744.4.1 Semiconductor Lasers - 744.1 Lasers, General - 715.2 Industrial Electronic Equipment - 714.2 Semiconductor Devices and Integrated Circuits - 713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 712.1 Semiconducting Materials

DOI:10.3788/CJL20093608.1957

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 72>

 

Accession number:20095112550170

Title:Research and application of multimode fusion technology in target detect and tracking field

Authors:Tian, Yan (1); Xu, Zhaohui (1); Liu, Ailong (1); Cao, Jianzhong (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119

Corresponding author:Tian, Y.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7495

Monograph title:MIPPR 2009 - Automatic Target Recognition and Image Analysis

Issue date:2009

Publication year:2009

Article number:74951L

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819478061

Document type:Conference article (CA)

Conference name:MIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition

Conference date:October 30, 2009 - November 1, 2009

Conference location:Yichang, China

Conference code:78791

Sponsor:Natl. Lab. Multi-spectral Inf. Process. Technol.; Huazhong University of Science and Technology; National Natural Science Foundation of China; China Three Gorges University

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:Aim at one application question: only a single tracking algorithm can not achieve reliable tracking in the entire trip, the distributional fusion system based on two kind of track pattern is proposed in this paper. Two kinds of track pattern are respectively based on the region match related track pattern and based on the characteristic point track pattern. The experiment result testify: the multimode tracking system in this article is availability, and obtain higher levels of tracking performance and tracking stability. &copy; 2009 Copyright SPIE - The International Society for Optical Engineering.

Number of references:5

Main heading:Target tracking

Controlled terms:Automatic target recognition - Image analysis - Image fusion - Targets

Uncontrolled terms:Characteristic point - Fusion image - Multimodes - Pattern tracking - Region match - Target detect - Tracking algorithm

Classification code:932.1.1 Particle Accelerators - 741 Light, Optics and Optical Devices - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 716.2 Radar Systems and Equipment - 716 Telecommunication; Radar, Radio and Television - 656.1 Space Flight - 654.1 Rockets and Missiles - 404.1 Military Engineering

DOI:10.1117/12.832841

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 73>

 

Accession number:20101212791872

Title:Application of multispectral image in the detection of small target

Authors:Yan, Peng (1); Liu, Xue-Bin (1); Hu, Bing-Liang (1); Shao, Xiu-Juan (1)

Author affiliation:(1) Laboratory of Spectral Imaging Technique, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi, 710119, China; (2) Graduate School of Chinese Academy of Science

Corresponding author:Yan, P.(summer_hehe@163.com)

Source title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Abbreviated source title:Proc. - Int. Conf. Inf. Eng. Comput. Sci., ICIECS

Monograph title:Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Issue date:2009

Publication year:2009

Article number:5362752

Language:English

ISBN-13:9781424449941

Document type:Conference article (CA)

Conference name:2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Conference date:December 19, 2009 - December 20, 2009

Conference location:Wuhan, China

Conference code:79561

Sponsor:Wuhan University; Huazhong Normal University; Wuhan University of Technology; National Technology University of Ukraine; Columbia University

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:This paper introduced the detection of small targets using multi-spectral data and the modified method of Constrained Energy Minimization (CEM). Also in this paper, we used Iterative Error Analysis (IEA) method to obtain the endmember and get the spectral data of target s' endmember, then substituted the endmember's spectral date in modified CEM equation to detect the interesting small targets successfully. The simulative results show that this method reduces the false alarm largely and it does not need the object's post spectral information, so it is more applicable. &copy;2009 IEEE.

Number of references:7

Main heading:Computational electromagnetics

Controlled terms:Computer science - Error analysis - Targets

Uncontrolled terms:Constrained Energy Minimization - Endmembers - False alarms - Iterative error analysis - Multi-spectral - Multi-spectral data - Multispectral images - Small targets - Spectral data - Spectral information

Classification code:701 Electricity and Magnetism - 721 Computer Circuits and Logic Elements - 722 Computer Systems and Equipment - 723 Computer Software, Data Handling and Applications - 921.6 Numerical Methods - 932.1.1 Particle Accelerators

DOI:10.1109/ICIECS.2009.5362752

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 74>

 

Accession number:20100912741101

Title:Optical design of three-mirror-anastigmat with fold mirror for space camera

Authors:Li, Xuyang (1); Li, Yingcai (1); Ma, Zhen (1); Yi, Hongwei (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Machanics, Chinese Acad. of Sci., Xi'an, Shaanxi 710119, China; (2) Graduate University of Chinese Academy of Sciences, Beijing 100039, China

Corresponding author:Li, X.(lixuyang2004@126.com)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:SUPPL. 2

Issue date:December 2009

Publication year:2009

Pages:335-340

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:To design high resolution remote camera optical system, this paper researched the issues in the during of the design of reflective optical system, proposed the three-mirror-anastigmat (TMA) optical systems of field bias, full field and annular field according to fields distributing, and finished its optical system design which was characterized by the spectrum band of 500-800 nm, focal length of 6000 mm and F number of 10. The result indicates that the image quality of the optical system approaches or reaches the diffraction limit, which can meet the demand for use of high resolution space cameras. Through analyzing and comparing the difficulty in fabricate and assembling of the three kinds of the three-mirror-anastigmat optical systems, it can be a special reference to the design of other large aperture and long focal length space telescope.

Number of references:11

Main heading:Optical systems

Controlled terms:Cameras - Electromagnetic wave diffraction - Image quality - Mirrors - Optical design

Uncontrolled terms:Bias field - Diffraction limit - Diffraction limits - Full-field - Three mirror anastigmats

Classification code:711 Electromagnetic Waves - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment

DOI:10.3788/CJL200936s2.0335

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 75>

 

Accession number:20095112566728

Title:Determining the glass transition temperature of polymer films with real-time

Authors:Yang, Yanfang (1); Xu, Kai (1); He, Ying (1); Li, Chunfang (1)

Author affiliation:(1) Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, China; (2) State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710068, China

Corresponding author:Yang, Y.(yangyangzhaoyb@yahoo.com.cn)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:11

Issue date:November 2009

Publication year:2009

Pages:3007-3010

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:According to thermal expansion principle, a novel real-time method is proposed in this paper for determining the glass transition temperature (T<inf>g</inf>) of thin polymer films based on the attenuated total reflection technique. The method is that the changing values of the refractive index and the thickness of the polymer film can be determined with the ascending temperature using the real-time system. Experimental results definitely show that curves of temperature dependence of the thermal expansion coefficient (&beta;) and the refractive index (dn/dT) change discontinuously and exist a same intersection point. The temperature of intersection point is the polymeric T<inf>g</inf>. With host-guest DR1/PMMA, the measurement procedures and experimental results are given. The repeatability and reliability of measuring T<inf>g</inf> of polymer by this method are examined.

Number of references:20

Main heading:Glass transition

Controlled terms:Glass - Light refraction - Plastic films - Polymer films - Polymers - Real time systems - Refractive index - Refractometers - Superconducting transition temperature - Thermal expansion  - Thermal stress - Waveguides

Uncontrolled terms:Attenuated total reflections - Glass transition temperature - Host-guests - Intersection points - Measurement procedures - Temperature dependence - Thermal expansion coefficients - Thin polymer films

Classification code:802.3 Chemical Operations - 812.3 Glass - 815.1 Polymeric Materials - 817.1 Polymer Products - 931.2 Physical Properties of Gases, Liquids and Solids - 941.3 Optical Instruments - 951 Materials Science - 741.1 Light/Optics - 421 Strength of Building Materials; Mechanical Properties - 641.1 Thermodynamics - 701.1 Electricity: Basic Concepts and Phenomena - 708.3 Superconducting Materials - 712.1.2 Compound Semiconducting Materials - 714.3 Waveguides - 722.4 Digital Computers and Systems

DOI:10.3788/CJL20093611.3007

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 76>

 

Accession number:20092512135589

Title:Broad-spectrum and long-lifetime emissions of Nd<sup>3+</sup> ions in lead fluorosilicate glass

Authors:Zou, Kuaisheng (1); Guo, Haitao (1); Lu, Min (1); Li, Weinan (1); Hou, Chaoqi (1); Wei, Wei (1); He, Junfang (1); Peng, Bo (1); Xiangli, Bin (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an, Shaanxi 710119, China; (2) Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author:Peng, B.(bpeng@opt.ac.cn)

Source title:Optics Express

Abbreviated source title:Opt. Express

Volume:17

Issue:12

Issue date:June 8, 2009

Publication year:2009

Pages:10001-10009

Language:English

E-ISSN:10944087

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:A novel Nd<sup>3+</sup>-doped lead fluorosilicate glass (NPS glass) is prepared by a two-step melting process. Based on the absorption spectrum a Judd-Ofelt theory analysis is made. The emission line width of NPS glass is 44.2nm, The fluorescence decay lifetime of the <sup>4</sup>F<inf>3/2</inf> level is 586&plusmn;20&mu;misee, and the stimulated emission cross-section is 0.87&times;10<sup>-20</sup>em<sup>2</sup> at 1056nm. A laser oscillation is occurred at 1062nm when pumped by 808nm Diode Laser. The slope efficiency is 23.7% with a 415mJ threshold. It is supposed that NPS glass is a good candidate for using in ultra-short pulse generation and amplification by the broad emission bandwidth and long fluorescence lifetime. &copy; 2009 Optical Society of America.

Number of references:18

Main heading:Emission spectroscopy

Controlled terms:Absorption spectroscopy - Amplification - Fluorescence - Glass - Neodymium - Pumping (laser)

Uncontrolled terms:Broad emission bandwidth - Diode lasers - Emission cross-section - Emission lines - Fluorescence decays - Fluorescence lifetimes - Fluorosilicate glass - Judd Ofelt theory - Laser oscillations - Melting process  - Slope efficiencies - Ultrashort pulse generation

Classification code:941.3 Optical Instruments - 931.3 Atomic and Molecular Physics - 812.3 Glass - 801 Chemistry - 941.4 Optical Variables Measurements - 744.1 Lasers, General - 741 Light, Optics and Optical Devices - 713.1 Amplifiers - 547.2 Rare Earth Metals - 741.1 Light/Optics

DOI:10.1364/OE.17.010001

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 77>

 

Accession number:20095112550191

Title:Automatic detection of small moving targets in a five-ocular composite optical imaging system

Authors:Qu, You-Shan (1); Fan, Xue-Wu (1); Li, Yan (1); Li, Ying-Cai (1)

Author affiliation:(1) Space Optical Laboratory, Xi'an Institute of Optics and Precision Mechanics, CAS, 710119, China

Corresponding author:Qu, Y.-S.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7495

Monograph title:MIPPR 2009 - Automatic Target Recognition and Image Analysis

Issue date:2009

Publication year:2009

Article number:74952B

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819478061

Document type:Conference article (CA)

Conference name:MIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition

Conference date:October 30, 2009 - November 1, 2009

Conference location:Yichang, China

Conference code:78791

Sponsor:Natl. Lab. Multi-spectral Inf. Process. Technol.; Huazhong University of Science and Technology; National Natural Science Foundation of China; China Three Gorges University

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:It is quite difficult to realize the automatic detection and determination of the small moving targets by the images data captured from a mono-aperture imaging system. Therefore a five-ocular composite optical imaging system is designed. The system is constituted by an infrared imaging system in the center and four visible imaging subsystems around the center subsystem. According to the inner feature of the overlapping field of view in the five-ocular composite optical imaging system, the automatic detection and recognition algorithm of the small moving targets for this system is built up. The algorithm is divided into four steps: the first step is preprocessing to get rid of low frequency background pixels, the second step is detecting the candidates of the small moving targets in the high frequency images remained by preprocessing, the third step is determining the true small moving targets from the candidates, and the last step is combining the detecting results of the visible subsystems into the detecting results of the infrared subsystem to determine the small moving targets are "live" or "dead", because the "dead" targets with lower temperature are not observed in the infrared subsystem. The test result in the experimental system indicated that the designed detection and recognition algorithm increased the detecting probability of the small moving targets, and decreased the probability of false alarms. The detection and recognition method was proved to be feasible and effective. &copy; 2009 Copyright SPIE - The International Society for Optical Engineering.

Number of references:15

Main heading:Targets

Controlled terms:Automatic target recognition - Digital image storage - Image processing - Imaging systems - Optical data processing - Optical flows - Optical image storage - Optoelectronic devices - Thermography (imaging)

Uncontrolled terms:Automatic detection - Background pixels - Experimental system - Field of views - High frequency - Low frequency - Optical imaging system - Probability of false alarm - Recognition algorithm - Recognition methods  - Small moving target - Test results - Visible imaging

Classification code:932.1.1 Particle Accelerators - 723.5 Computer Applications - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.1 Photography - 746 Imaging Techniques - 723.2 Data Processing and Image Processing - 722.1 Data Storage, Equipment and Techniques - 717.2 Optical Communication Equipment - 716 Telecommunication; Radar, Radio and Television - 714.2 Semiconductor Devices and Integrated Circuits - 404.1 Military Engineering - 722.4 Digital Computers and Systems

DOI:10.1117/12.833999

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 78>

 

Accession number:20094712459863

Title:Phase-stabilized 167 MHz repetition frequency carbon nanotube fiber laser frequency comb

Authors:Lim, Jinkang (1); Knabe, Kevin (1); Wang, Yishan (1); Amezcua-Correa, Rodrigo (3); Couny, Fran&#231;ois (3); Light, Philip S. (3); Benabid, Fetah (3); Knight, Jonathan C. (3); Corwin, Kristan L. (1); Nicholson, Jeffrey W. (4); Washburn, Brian R. (1)

Author affiliation:(1) 116 Cardwell Hall, Department of Physics, Kansas State University, Manhattan, KS 66506, United States; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an, China; (3) Centre for Photonics and Photonics Materials, Dept. of Physics, University of Bath, BA2, 7AY, United Kingdom; (4) OFS Labs., 19 Schoolhouse Rd, Somerset, NJ 08873, United States

Corresponding author:Lim, J.(jklim@phys.ksu.edu)

Source title:2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009

Abbreviated source title:Conf. Lasers Electro-Opt. Conf. Quantum Electron. Laser Sci. Conf., CLEO/QELS

Monograph title:2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009

Issue date:2009

Publication year:2009

Article number:5224463

Language:English

ISBN-13:9781557528698

Document type:Conference article (CA)

Conference name:2009 Conference on Lasers and Electro-Optics and 2009 Conference on Quantum Electronics and Laser Science Conference, CLEO/QELS 2009

Conference date:June 2, 2009 - June 4, 2009

Conference location:Baltimore, MD, United states

Conference code:78099

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:The frequency comb generated by a high repetition frequency erbium-doped fiber ring laser using carbon nanotube saturable absorber is phase-stabilized for the first time. The comb's stability is compared a photonic crystal fiber acetylene reference. &copy;2009 Optical Society of America.

Number of references:9

Main heading:Photonic crystal fibers

Controlled terms:Acetylene - Carbon fibers - Carbon nanotubes - Electron optics - Erbium - Fiber lasers - Lighting - Photonic crystals - Quantum electronics - Ring lasers

Uncontrolled terms:Carbon nanotube fibers - Erbium doped fiber ring lasers - Frequency combs - High repetition - Laser frequency - Repetition frequency - Saturable absorbers

Classification code:804 Chemical Products Generally - 804.1 Organic Compounds - 817.1 Polymer Products - 931.3 Atomic and Molecular Physics - 931.4 Quantum Theory; Quantum Mechanics - 933.1 Crystalline Solids - 951 Materials Science - 761 Nanotechnology - 547.2 Rare Earth Metals - 701.1 Electricity: Basic Concepts and Phenomena - 707 Illuminating Engineering - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744 Lasers - 744.4 Solid State Lasers

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20091311987726

Title:A static and divided mirror Michelson interferometer for measuring atmospheric winds

Authors:ZhiChao, Bu (1); ChunMin, Zhang (1); Baochang, Zhao (2)

Author affiliation:(1) School of Science, Xi'an Jiaotong University, Xi'an 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an 710068

Corresponding author:ZhiChao, B.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7156

Monograph title:2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

Issue date:2009

Publication year:2009

Article number:71563D

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

Conference date:November 16, 2008 - November 19, 2008

Conference location:Beijing, China

Conference code:75967

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:A static and divided mirror Michelson interferometer is a new version of Michelson interferometer. It is designed to provide simultaneous measurements of dynamical signatures in the atmosphere. In this paper the theory of the survey of upper atmospheric wind field is first introduced. Then the design of this interferometer generally described and requirements of thin films are proposed. Using the software TFCALC, four thin films are successfully simulated, which can realize wide-angle and achromatic at the same time. The accuracy of the thin films can reach to 95.6% in reflection, 2.5&deg; degrees in phase shift and 0.75&deg; degree in wide angle. &copy; 2009 SPIE.

Number of references:11

Main heading:Optical instruments

Controlled terms:Interferometry - Michelson interferometers - Mirrors - Photolithography - Thin films

Uncontrolled terms:Achromatic - Atmospheric winds - Simultaneous measurements - Wide angles - Wide-angle

Classification code:714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 745.1 Printing - 941.3 Optical Instruments - 941.4 Optical Variables Measurements

DOI:10.1117/12.812022

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 80>

 

Accession number:20092312112286

Title:Design of a single-polarization single-mode photonic crystal fiber double-core coupler

Authors:Li, Jianfeng (1); Duan, Kailiang (3); Wang, Yishan (3); Cao, Xiangjie (3); Guo, Yongkang (2); Lin, Xiangdi (2)

Author affiliation:(1) School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, 610054, China; (2) Department of Physics, Institute of Nano Optics, Sichuan University, Chengdu, 610064, China; (3) Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China

Corresponding author:Li, J.(lijianfeng3000@sina.com.cn)

Source title:Optik

Abbreviated source title:Optik

Volume:120

Issue:10

Issue date:June 2009

Publication year:2009

Pages:490-496

Language:English

ISSN:00304026

Document type:Journal article (JA)

Publisher:Urban und Fischer Verlag Jena, P.O. Box 100537, Jena, 07705, Germany

Abstract:A simple single-polarization single-mode (SPSM) photonic crystal fiber (PCF) coupler with two cores is introduced. The full-vector finite-element method (FEM) is applied to analyze the modal interference phenomenon of the even and odd modes of two orthogonal polarizations and the power propagation within the two cores. Meanwhile, the SPSM coupling wavelength range and its corresponding coupling length for different structure parameters are numerically analyzed. The numerical results show that SPSM coupling can be realized with a broad range of wavelength, and the coupling length can be of millimeter magnitude. Moreover, the SPSM coupling wavelength range and the coupling length can be optimized by designing proper mirco-structure parameters of the coupler. &copy; 2008 Elsevier GmbH. All rights reserved.

Number of references:15

Main heading:Photonic crystal fibers

Controlled terms:Crystal atomic structure - Crystal whiskers - Fiber optics - Fibers - Finite element method - Laser pulses - Nonlinear optics - Photonic crystals - Polarization

Uncontrolled terms:Coupling length - Coupling wavelengths - Different structure - Even- and odd-mode - Fiber coupler - Full-vector finite-element method (FEM) - Modal interference - Numerical results - Orthogonal polarizations - PCF  - Single-polarization single-mode - Single-polarization single-mode (SPSM) - Structure parameter

Classification code:817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 921.6 Numerical Methods - 812 Ceramics, Refractories and Glass - 931.3 Atomic and Molecular Physics - 933.1.1 Crystal Lattice - 951 Materials Science - 933.1 Crystalline Solids - 801.4 Physical Chemistry - 701.1 Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 741.1 Light/Optics - 531.2 Metallography - 741.1.1 Nonlinear Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General - 741.1.2 Fiber Optics

DOI:10.1016/j.ijleo.2007.12.002

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 81>

 

Accession number:20095112550743

Title:Birefringence and formed birefringence in photonic crystal line waveguides

Authors:Zhang, Wenfu (1); Liu, Jihong (3); Huang, Wei-Ping (4); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School of the Chinese Academy of Sciences, Beijing 100049, China; (3) Department of Electronic and Information Engineering, Xi'an Institute of Post and Telecommunications, Xi'an 710061, China; (4) Department of Electrical and Computer Engineering, McMaster University, ON, Canada

Corresponding author:Zhang, W.(wfu.zhang@gmail.com)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7516

Monograph title:Photonics and Optoelectronics Meetings (POEM) 2009 - Optoelectronic Devices and Integration

Issue date:2009

Publication year:2009

Article number:751603

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819479051

Document type:Conference article (CA)

Conference name:Photonics and Optoelectronics Meetings (POEM) 2009 - Optoelectronic Devices and Integration

Conference date:August 8, 2009 - August 10, 2009

Conference location:Wuhan, China

Conference code:78815

Sponsor:Chinese Optical Society; Huazhong University of Science and Technology; China Hubei Provincial Science Technology Department; Adm. Comm. Wuhan East Lake High-Tech Dev. Zone; State Optoelectronic Information Industry Base of China

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The birefringence of two-dimensional photonic crystal line defect waveguides, which is larger than that of the conventional dielectric waveguides, is numerically investigated by finite-difference time-domain scheme and spatial Fourier transform method. The birefringence line waveguides are more suitable for polarization phase engineering than the bulk perfect photonic crystal structure because they provide low beam divergence and light transmission loss. The zeroth-order quarter- and half-wave plates based on the two-dimensional photonic crystal line waveguide have merits of high transmission efficiency and low interference with other components in photonic integrated circuits. Moreover, the designed zeroth-order wave plates have achromatic characteristic with high phase accuracy ( &plusmn;0.012&pi; ) in a large frequency range (about 16 nm) around the telecommunication band (1550 nm). In addition, for realizing the relatively high order wave plates, the formed birefringence method is introduced in detail. The physical mechanism of formed birefringence is bringing path difference between two different polarizations. Based on the formed birefringence, the relative high-order (about 80th-order) WP is achieved by line-defect photonic crystal waveguides. The wave plates presented in this letter have many potential applications in future photonic integrated circuits such as integrated optical communications, polarization control and integrated depolarizing. &copy; 2009 Copyright SPIE - The International Society for Optical Engineering.

Number of references:13

Main heading:Birefringence

Controlled terms:Crystal structure - Electrooptical devices - Finite difference time domain method - Integrated circuits - Integrated optoelectronics - Laser optics - Light transmission - Method of moments - Optical communication - Optical waveguides  - Optoelectronic devices - Photonic crystals - Plates (structural components) - Polarization - Time domain analysis - Two dimensional - Waveguides

Uncontrolled terms:1550 nm - Birefringence methods - Finite-Difference Time-Domain schemes - Formed birefringence - Frequency ranges - Half waveplate - High order - High transmission - Light-transmission loss - Line defects  - Low-beam divergence - Phase accuracy - Photonic crystal waveguide - Photonic integrated circuits - Physical mechanism - Polarization control - Polarization phase - Potential applications - Spatial Fourier Transform - Telecommunication bands  - Two-dimensional photonic crystals - Waveplates

Classification code:723.5 Computer Applications - 731.1 Control Systems - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 933.1.1 Crystal Lattice - 744.1 Lasers, General - 902.1 Engineering Graphics - 921 Mathematics - 933.1 Crystalline Solids - 801.4 Physical Chemistry - 717.2 Optical Communication Equipment - 717.1 Optical Communication Systems - 408.2 Structural Members and Shapes - 531.2 Metallography - 701.1 Electricity: Basic Concepts and Phenomena - 703.1.1 Electric Network Analysis - 711.1 Electromagnetic Waves in Different Media - 714 Electronic Components and Tubes - 714.2 Semiconductor Devices and Integrated Circuits - 714.3 Waveguides

DOI:10.1117/12.843462

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 82>

 

Accession number:20092412123022

Title:Gain narrowing effect of soft X-ray picoseconds framing camera

Authors:Yang, Wenzheng (1); Bai, Yonglin (1); Qin, Junjun (2); Zhao, Junping (2); Bai, Xiaohong (2); Liu, Baiyu (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Key Laboratory of Ultrafast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Yang, W.(ywz@opt.ac.cn)

Source title:Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams

Abbreviated source title:Qiangjiguang Yu Lizishu

Volume:21

Issue:5

Issue date:May 2009

Publication year:2009

Pages:755-760

Language:Chinese

ISSN:10014322

CODEN:QYLIEL

Document type:Journal article (JA)

Publisher:Editorial Office of High Power Laser and Particle Beams, P.O. Box 919-805, Mianyang, 621900, China

Abstract:Temporal resolution of a soft X-ray picoseconds framing camera (XPFC) based on gated micro-channel plate (MCP) depends strong-nonlinearly on parameters of gating pulse (width, amplitude) and is much shorter than the gating pulse width, which the so-called "gain narrowing effect". The temporal resolution and the gain narrowing effect exponent of the XPFC being gated by picoseconds electric pulse are computed and analyzed. So the estimated gain narrowing effect exponent is about 10.0 and the temporal resolution of the framing camera is about 1/3.16 times the width of the gating pulse. The simulations and experiments on the temporal resolution of the XPFC gated respectively by the gating pulse with (250 ps, -1100 V) and (220 ps, -900 V) are presented. Simulation result of 78.8 ps and experimental result of 76.4 ps with the gating pulse (250 ps, -1100 V), and simulation result of 67.6 ps and experimental result of 66.5 ps with the gating pulse (220 ps, -900 V) are obtained.

Number of references:11

Main heading:Motion picture cameras

Controlled terms:Image storage tubes - Packet networks

Uncontrolled terms:Gain narrowing effect - Gating electric pulse - Micro-channel plate - Temporal resolution - X-ray framing camera

Classification code:714.1 Electron Tubes - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 742.2 Photographic Equipment

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 83>

 

Accession number:20091311982625

Title:Large second-order nonlinearity in thermally poled Ge-Sb-Cd-S chalcogenide glass

Authors:Guo, Haitao (1); Zheng, Xiaolin (2); Lu, Min (1); Zou, Kuaisheng (1); Peng, Bo (1); Gu, Shaoxuan (2); Liu, Hao (2); Zhao, Xiujian (2)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an, Shanxi 710119, China; (2) Key Laboratory of Silicate Materials Science and Engineering, Ministry of Education, Wuhan, Hubei 430070, China

Corresponding author:Peng, B.(bpeng@opt.ac.cn)

Source title:Optical Materials

Abbreviated source title:Opt Mater

Volume:31

Issue:6

Issue date:April 2009

Publication year:2009

Pages:865-869

Language:English

ISSN:09253467

CODEN:OMATET

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:After thermally poled, second-harmonic generation was observed from 0.85GeS<inf>2</inf>&middot0.1Sb<inf>2</inf>S<inf>3</inf>&middot0.05CdS chalcogenide glass by using the Maker fringe method, and the second-order nonlinearity (SON) susceptibility, &chi;<sup>(2)</sup>, is 9 pm/V at maximum. The stability of SON is excellent and its theoretical decaying time according to the thermally stimulated depolarization current (TSDC) measurement is as long as 654 days. The origin of SON, the effects of poling parameters and the reasons of angle variation of maximum SH intensity in Maker fringe, were discussed based on dipole reorientation model. With its large and stable SON, this novel nonlinear chalcogenide glass is a very promising material that can be applied to many optical fields in the future. &copy; 2008 Elsevier B.V. All rights reserved.

Number of references:18

Main heading:Harmonic generation

Controlled terms:Cadmium compounds - Germanium - Glass - Harmonic analysis

Uncontrolled terms:Angle variations - Cds - Chalcogenide glass - Dipole reorientations - Maker fringe - Maker fringe methods - Nonlinear chalcogenides - Optical fields - Promising materials - Second-harmonic generation  - Second-order nonlinearities - Thermal poling - Thermally stimulated depolarization currents

Classification code:812.3 Glass - 804.2 Inorganic Compounds - 804.1 Organic Compounds - 921.6 Numerical Methods - 804 Chemical Products Generally - 713.2 Oscillators - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 751.1 Acoustic Waves

DOI:10.1016/j.optmat.2008.10.044

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 84>

 

Accession number:20101112774543

Title:Composition optimization of tellurite glass for low-loss and robust fiber fabrication

Authors:Lin, Aoxiang (1); Zhang, Aidong (1); Toulouse, Jean (1)

Author affiliation:(1) Center for Optical Technologies, Physics Department, Lehigh University, Bethlehem, PA 18015, United States; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics (XIOPM), Chinese Academy Ofsciences (CAS), Xi'an 710119, China

Corresponding author:Lin, A.(aoxiang.research@gmail.com)

Source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Abbreviated source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Monograph title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Issue date:2009

Publication year:2009

Article number:5377095

Language:English

ISBN-13:9781557528773

Document type:Conference article (CA)

Conference name:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Conference date:November 2, 2009 - November 6, 2009

Conference location:Shanghai, China

Conference code:79515

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:Tellurite glass with composition of 80TeO<inf>2</inf>-10ZnO-10Na <inf>2</inf>O (TZN-80) was made by melting and quenching techniques. This glass shows high transmission (&ge;80%) at 0.87&sim;3.00 &mu;m and good IR transmission up to 6 &mu;m, and exhibits excellent physical properties against surface crystallization during fiber drawing. &copy;2009 Optical Society of America.

Number of references:5

Main heading:Glass

Controlled terms:Sodium - Surface chemistry - Tellurium compounds - Zinc oxide

Uncontrolled terms:Composition optimization - Fiber drawing - High transmission - Low loss - Surface crystallization - Tellurite glass - ZnO

Classification code:549.1 Alkali Metals - 801.4 Physical Chemistry - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812.3 Glass

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 85>

 

Accession number:20091311982854

Title:Polarization band-pass filters based on one-dimensional photonic crystal heterostructure

Authors:Zhang, Wen-Fu (1); Liu, Ji-Hong (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; (2) Graduate School of Chinese Academy of Sciences, Beijing 100039, China; (3) Department of Electronic and Information Engineering, Xi'an Institute of Post and Telecommunication, Xi'an 710061, China

Corresponding author:Zhang, W.-F.(wfu.zhang@gmail.com)

Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser

Abbreviated source title:Guangdianzi Jiguang

Volume:20

Issue:2

Issue date:February 2009

Publication year:2009

Pages:148-151

Language:Chinese

ISSN:10050086

CODEN:GUJIE9

Document type:Journal article (JA)

Publisher:Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China

Abstract:The design of polarization band-pass filters is presented, which is based on the superposition of transmission peak near forbidden gap edge in one-dimensional photonic crystal heterostructures. The heterostructures can realize p-polarization band-pass and extend the forbidden gap both for p-polarization and s-polarization. The characteristics of the filters, including pass band and forbidden band, are discussed in detail. The results show that the polarization band-pass filters have some novel characteristics such as wide pass band, wide forbidden band, less layers, miniaturization, rectangle-like pass band et al. The filters can be easy fabricated and have great application merit.

Number of references:13

Main heading:Photonic band gap

Controlled terms:Crystal atomic structure - Crystal filters - Heterojunctions - Photonic crystals - Polarization

Uncontrolled terms:1-D photonic crystal(PC) - Band pass - Forbidden bands - Forbidden gaps - Heterostructure - Heterostructures - One-dimensional photonic crystals - P polarizations - Pass bands - Polarization band-pass filters  - Transmission peaks

Classification code:933.1 Crystalline Solids - 931.3 Atomic and Molecular Physics - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 933.1.1 Crystal Lattice - 714.2 Semiconductor Devices and Integrated Circuits - 711.1 Electromagnetic Waves in Different Media - 703.2 Electric Filters - 701.1 Electricity: Basic Concepts and Phenomena - 712.1 Semiconducting Materials

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 86>

 

Accession number:20101212793004

Title:Application of flywheel battery in solar power system

Authors:Ye, Shunliu (1); Sun, Bo (3)

Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, China; (2) Graduate University, Chinese Academy of Sciences, Beijing, China; (3) Shenzhen A and E Electrical Power Tech Co., Ltd., Shenzhen, China

Corresponding author:Ye, S.(yeshunliu@opt.ac.cn)

Source title:2009 International Conference on Energy and Environment Technology, ICEET 2009

Abbreviated source title:Int. Conf. Energy Environ. Technol., ICEET

Volume:1

Monograph title:2009 International Conference on Energy and Environment Technology, ICEET 2009

Issue date:2009

Publication year:2009

Pages:533-536

Article number:5364241

Language:English

ISBN-13:9780769538198

Document type:Conference article (CA)

Conference name:2009 International Conference on Energy and Environment Technology, ICEET 2009

Conference date:October 16, 2009 - October 18, 2009

Conference location:Guilin, China

Conference code:79562

Sponsor:IEEE Power and Energy Society(PES); Hunan Institute of Engineering; Changsha University of Science and Technology

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:A micro flywheel energy storage system was designed in which the flywheel battery saves and releases energy when necessary. Controlling system and four operating modes of solar power system containing flywheel battery were given and operating process of this system was simulated. The results show that: the flywheel battery resolves the problem of incapability of solar power supply at night and delays the time of supply. Output characteristics of photovoltaic cell are optimized in this system and the quality and the reliability in power supply is greatly improved. &copy; 2009 IEEE.

Number of references:5

Main heading:Flywheels

Controlled terms:Passenger cars - Photovoltaic cells - Solar energy - Solar power plants - Wheels

Uncontrolled terms:Controlling system - Flywheel battery - Flywheel energy storage system - Operating modes - Operating process - Output characteristics - Power supply - Solar power - Solar Power Systems

Classification code:741.3 Optical Devices and Systems - 714.2 Semiconductor Devices and Integrated Circuits - 702.3 Solar Cells - 682.1.1 Railroad Cars - 941.3 Optical Instruments - 657.1 Solar Energy and Phenomena - 601.2 Machine Components - 601.1 Mechanical Devices - 402.1 Industrial and Agricultural Buildings - 615.2 Solar Power

DOI:10.1109/ICEET.2009.135

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 87>

 

Accession number:20094012348806

Title:The Gabor-based tensor level set method for multiregional image segmentation

Authors:Wang, Bin (1); Gao, Xinbo (1); Tao, Dacheng (2); Li, Xuelong (3); Li, Jie (1)

Author affiliation:(1) School of Electronic Engineering, Xidian University, Xi'an 710071, China; (2) School of Computer Engineering, Nanyang Technological University, 639798 Singapore, Singapore; (3) State Key Laboratory of Transient Optics and Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China

Corresponding author:Wang, B.

Source title:Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

Abbreviated source title:Lect. Notes Comput. Sci.

Volume:5702 LNCS

Monograph title:Computer Analysis of Images and Patterns - 13th International Conference, CAIP 2009, Proceedings

Issue date:2009

Publication year:2009

Pages:987-994

Language:English

ISSN:03029743

E-ISSN:16113349

ISBN-10:3642037666

ISBN-13:9783642037665

Document type:Conference article (CA)

Conference name:13th International Conference on Computer Analysis of Images and Patterns, CAIP 2009

Conference date:September 2, 2009 - September 4, 2009

Conference location:Munster, Germany

Conference code:77256

Sponsor:University of Munster; International Association for Pattern Recognition; Olympus Soft Imaging Solutions GmbH; Philips

Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany

Abstract:This paper represents a new level set method for multiregional image segmentation. It employs the Gabor filter bank to extract local geometrical features and builds the pixel tensor representation whose dimensionality is reduced by using the offline tensor analysis. Then multiphase level set functions are evolved in the tensor field to detect the boundaries of the corresponding image. The proposed method has three main advantages as follows. Firstly, employing the Gabor filter bank, the model is more robust against the salt-and-pepper noise. Secondly, the pixel tensor representation comprehensively depicts the information of pixels, which results in a better performance on the non-homogenous image segmentation. Thirdly, the model provides a uniform equation for multiphase level set functions to make it more practical. We apply the proposed method to synthetic and medical images respectively, and the results indicate that the proposed method is superior to the typical region-based level set method. &copy; 2009 Springer Berlin Heidelberg.

Number of references:20

Main heading:Image segmentation

Controlled terms:Digital image storage - Drop breakup - Feature extraction - Filter banks - Image analysis - Level measurement - Pixels - Set theory - Tensors

Uncontrolled terms:Gabor filter bank - Gabor filter banks - Geometric active contour - Geometrical features - Level set functions - Level set method - Medical images - Offline - Region-based - Salt-and-pepper noise  - Tensor fields - Tensor representation - Tensor subspace analysis

Classification code:741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 751.1 Acoustic Waves - 741.1 Light/Optics - 921.1 Algebra - 931.2 Physical Properties of Gases, Liquids and Solids - 943.2 Mechanical Variables Measurements - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 741 Light, Optics and Optical Devices - 713 Electronic Circuits - 716 Telecommunication; Radar, Radio and Television - 722.1 Data Storage, Equipment and Techniques - 703.2 Electric Filters - 722.2 Computer Peripheral Equipment - 723.2 Data Processing and Image Processing - 723.5 Computer Applications - 722.4 Digital Computers and Systems

DOI:10.1007/978-3-642-03767-2_120

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 88>

 

Accession number:20100512678704

Title:The research of the moon simulator for autonomous navigation experiment

Authors:Su, Shi (1); An, Zhiyong (1); Zhang, Guoyu (1); Xu, Xiping (1); Sun, Xiangyang (2); Xu, Liang (4); Song, Jingyi (5)

Author affiliation:(1) College of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China; (2) Key Laboratory of Optoelectronic Measuring-Controlling and Optical Information Transmitting Technol., Changchun 130022, China; (3) College of Electronic Information Engineering, Changchun University, Changchun 130022, China; (4) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China; (5) College of Electronic Science and Engineering, Jilin University, Changchun 130012, China

Corresponding author:Su, S.

Source title:Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument

Abbreviated source title:Yi Qi Yi Biao Xue Bao

Volume:30

Issue:SUPPL. 2

Issue date:December 2009

Publication year:2009

Pages:26-30

Language:Chinese

ISSN:02543087

CODEN:YYXUDY

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:According to simulation experiments and performance tests for the autonomous navigation optical sensor this paper firstly presents the moon simulator with two slewing bodies and hydraulic lifting function The components and overall structure of simulator device slewing mechanism and xenon lamp power supply are introduced respectively It emphatically discussed the selection of optical system of the moon simulator and the calculation of irradiance Through the analysis of test data Radiation intensity can reach 1.31 &times; 10<sup>3</sup> moon constants and irradiation instability 1.17% and irradiation unevenness 3.39% are better than index requirements.

Number of references:7

Main heading:Simulators

Controlled terms:Electric lamps - Electric power transmission networks - Irradiation - Moon - Navigation - Navigation systems - Optical systems - Xenon

Uncontrolled terms:Autonomous navigation - Irradiance - Lifting functions - Performance tests - Radiation intensity - Simulation experiments - Slewing mechanism - Test data - Xenon lamp power supply - Xenon lamps

Classification code:671 Naval Architecture - 703.1 Electric Networks - 706.1.1 Electric Power Transmission - 707.2 Electric Lamps - 932.1 High Energy Physics - 711.1 Electromagnetic Waves in Different Media - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 804 Chemical Products Generally - 716.3 Radio Systems and Equipment - 662.1 Automobiles - 657.2 Extraterrestrial Physics and Stellar Phenomena - 431.5 Air Navigation and Traffic Control - 434.4 Waterway Navigation - 621 Nuclear Reactors - 622.2 Radiation Effects - 654.1 Rockets and Missiles - 655.1 Spacecraft, General - 655.2 Satellites - 657.1 Solar Energy and Phenomena

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 89>

 

Accession number:20095112550271

Title:An effective matching algorithm in real-time video tracking

Authors:Xu, Zhaohui (1); Tian, Yan (1); Cao, Jianzhong (1); Wei, Junxia (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710068

Corresponding author:Xu, Z.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7495

Monograph title:MIPPR 2009 - Automatic Target Recognition and Image Analysis

Issue date:2009

Publication year:2009

Article number:74954U

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819478061

Document type:Conference article (CA)

Conference name:MIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition

Conference date:October 30, 2009 - November 1, 2009

Conference location:Yichang, China

Conference code:78791

Sponsor:Natl. Lab. Multi-spectral Inf. Process. Technol.; Huazhong University of Science and Technology; National Natural Science Foundation of China; China Three Gorges University

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:In order to save the computational time of and apply in engineering practice well, a lot of correlation matching algorithms have been proposed at present. A practical effective method based on small diamond search template is presented in this paper. By comparing with the classical algorithm based on the large diamond, it is very pleased with the results. The algorithm presented not only reduced the computational complexity and improved the computational speed, but also ensured the search precision of correlation matching. It is fully able to satisfy the requirement of real-time video tracking, and be pleased greatly with the accuracy and reliability of the real-time video tracking. &copy; 2009 Copyright SPIE - The International Society for Optical Engineering.

Number of references:4

Main heading:Diamonds

Controlled terms:Algorithms - Automatic target recognition - Computational complexity - Image analysis

Uncontrolled terms:Correlation matching - Diamond search - Dynamic range - Linear search - Motion video - Real time vector

Classification code:921 Mathematics - 741 Light, Optics and Optical Devices - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 716 Telecommunication; Radar, Radio and Television - 482.2.1 Gems - 404.1 Military Engineering

DOI:10.1117/12.832999

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 90>

 

Accession number:20094512421424

Title:Eye-safe, high-energy, single-mode all-fiber laser with widely tunable repetition rate

Authors:Gao, Cunxiao (1); Zhu, Shaolan (1); Zhao, Wei (1); Cao, Zongying (1); Yang, Zhi (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an 710119, China; (2) Graduate University, Chinese Acad. of Sci., Beijing 100049, China

Corresponding author:Gao, C.(cxgao@opt.ac.cn)

Source title:Chinese Optics Letters

Abbreviated source title:Chin. Opt. Lett.

Volume:7

Issue:7

Issue date:July 2009

Publication year:2009

Pages:611-613

Language:English

ISSN:16717694

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:We present a novel high-energy, single-mode, all-fiber-based master-oscillator-power-amplifier (MOPA) laser system operating in the C-band with 3.3-ns pulses and a very widely tunable repetition rate, ranging from 30 kHz to 50 MHz. The laser with a maximum pulse energy of 25 &mu;J and a repetition rate of 30 kHz is obtained at a wavelength of 1548 nm by using a double-clad, single-mode, Er:Yb co-doped fiber power amplifier. &copy; 2009 Chinese Optics Letters.

Number of references:11

Main heading:Pulsed laser applications

Controlled terms:Erbium - Fiber lasers - Lasers - Power amplifiers - Ytterbium

Uncontrolled terms:All fiber - All-fiber lasers - Co-doped - Double-clad - Eye-safe - High energy - Laser systems - Pulse energies - Repetition rate - Single mode  - Widely tunable

Classification code:547.2 Rare Earth Metals - 713.1 Amplifiers - 741.1.2 Fiber Optics - 744.1 Lasers, General - 744.4 Solid State Lasers - 744.9 Laser Applications

DOI:10.3788/COL20090707.0611

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 91>

 

Accession number:20091311993603

Title:Optical path difference evaluation of the polarization interference imaging spectrometer

Authors:Mu, Tingkui (1); Zhang, Chunmin (1); Zhao, Baochang (2)

Author affiliation:(1) School of Science, Xi'an Jiaotong University, Xi'an, 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China

Corresponding author:Mu, T.(tkmu2000@foxmail.com)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:10

Issue date:May 15, 2009

Publication year:2009

Pages:1984-1992

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:The optical path difference (OPD) of the static polarization interference imaging spectrometer and wide-field-of-view polarization interference imaging spectrometer are calculated and analyzed, simultaneously. The analysis results show that the actual total OPD contains two parts, the Savart polariscope introduces the first part, and the second part is introduced when imaging lens reunites two beams in its focal plane. Since the first part OPD accounts for about half of the actual total OPD, it has influences on the resulting spectrum and thus cannot be neglected. The influences of the uniaxial crystal dispersion on the OPD and resulting spectrum are analyzed, and the results show that the OPD decreased with the wavelength, the spectral resolution increased with the wavelength. There are no fixed spectral resolution over the entire detection spectral region, and the spectral resolution would become worse with the increase of the wavelength. &copy; 2009 Elsevier B.V. All rights reserved.

Number of references:22

Main heading:Polarization

Controlled terms:Optical devices - Polariscopes - Ray tracing - Spectral resolution - Spectrometers - Spectrometry

Uncontrolled terms:Analysis results - Dispersion effects - Focal planes - Imaging lens - Optical path difference - Savart polariscope - Spectral regions - Static polarization interference imaging spectrometers - Two beams - Uniaxial crystals  - Wide fields

Classification code:941.3 Optical Instruments - 801 Chemistry - 741.3 Optical Devices and Systems - 941.4 Optical Variables Measurements - 741.1 Light/Optics - 711.1 Electromagnetic Waves in Different Media - 701.1 Electricity: Basic Concepts and Phenomena - 723.5 Computer Applications

DOI:10.1016/j.optcom.2009.02.013

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 92>

 

Accession number:20094812508956

Title:The electronic subsystem design of the interference imaging spectrometer on CE-1 satellite

Authors:Qiu, Yue-Hong (1); Wen, De-Sheng (1); Zhao, Bao-Chang (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, 710119, China

Corresponding author:Qiu, Y.-H.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7384

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Advances in Imaging Detectors and Applications

Issue date:2009

Publication year:2009

Article number:73842J

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476654

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Imaging Detectors and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:78570

Sponsor:Photoelectric Technology Professional Committee; Chinese Society of Astronautics

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The Interference Imaging Spectrometer (IIS) is the one of payloads of the Chang'e-1 (CE-1) lunar satellite, which is used to acquire the spectral information and the global distribution information about lunar minerals. In this paper, some information about the electronic subsystem design of the Interference Imaging Spectrometer (IIS) is given. First, the technical specifications and requirements, architecture, function and operating modes of the electronic subsystem are described briefly. Secondly, the focus plane assembly (FPA) including CCD, CCD driving circuits, CCD buffering circuits, CCD biasing circuits and low-noise preamp circuits is introduced. Thirdly, the video processing and control assembly including the correlated double sampling(CDS) circuit, the programmable gain amplifier circuit, the active filter circuit, the A/D conversion circuit, digital video signal buffers, the timing module, the output interface circuit is treated. Fourthly, the timing description and logical architecture are given. Finally, some results are supplied. After careful design, thorough analyses and simulation, sufficient debug and test, the design has satisfied the technical requirements and achieved the goal of the one-year on-orbit operation. &copy; 2009 SPIE.

Number of references:4

Main heading:Timing circuits

Controlled terms:Active filters - Analog to digital conversion - Computer graphics - Design - Detectors - Differential amplifiers - Digital cameras - Focal plane arrays - Logic circuits - Moon  - Multimedia systems - Satellites - Signal detection - Signal processing - Spectrometers - Spectrometry - Time measurement - Video recording - Video signal processing

Uncontrolled terms:A/D conversion - Biasing circuit - CCD - Correlated double sampling - Digital video signals - Driving circuits - Electronic subsystems - Focus plane assembly (fpa) - Global distribution - Interference imaging  - Logical architecture - Low noise - Lunar satellite - On-orbit - Operating modes - Output interface - Programmable gain amplifier - Spectral information - Technical requirement - Technical specifications  - Timing module - Video processing

Classification code:943.3 Special Purpose Instruments - 722.5 Analog and Hybrid Computers - 723.5 Computer Applications - 741.3 Optical Devices and Systems - 742.2 Photographic Equipment - 801 Chemistry - 902.1 Engineering Graphics - 914 Safety Engineering - 921.4 Combinatorial Mathematics, Includes Graph Theory, Set Theory - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 722.4 Digital Computers and Systems - 408 Structural Design - 655.2 Satellites - 657.2 Extraterrestrial Physics and Stellar Phenomena - 703.2 Electric Filters - 721.3 Computer Circuits - 713.1 Amplifiers - 716.1 Information Theory and Signal Processing - 716.4 Television Systems and Equipment - 721.2 Logic Elements - 713.4 Pulse Circuits

DOI:10.1117/12.836391

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 93>

 

Accession number:20093512272505

Title:Ultrahigh-resolution fiber-optic image guides derived from microstructured polymer optical fiber preforms

Authors:Kong, Depeng (1); Wang, Lili (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Information Road 17, Xi'an, Shannxi 710119, China

Corresponding author:Wang, L.(wangll@opt.ac.cn)

Source title:Optics Letters

Abbreviated source title:Opt. Lett.

Volume:34

Issue:16

Issue date:August 15, 2009

Publication year:2009

Pages:2435-2437

Language:English

ISSN:01469592

E-ISSN:15394794

CODEN:OPLEDP

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:Ultrahigh-resolution fiber-optic image guides-fused image fiber, faceplate, and taper-were fabricated by using microstructured polymer optical fiber (MPOF) preforms composed of two polymers: polymethylmethacrylate and polystyrene. The pixel diameter in the resultant MPOF-based image guides was as small as 3 &mu;m. The imaging capabilities of these types of fiber-optic elements were demonstrated. &copy; 2009 Optical Society of America.

Number of references:16

Main heading:Fibers

Controlled terms:Fiber optics - Light transmission - Optical fiber fabrication - Optical fibers - Optical materials - Optical sensors - Polymers - Polystyrenes - Preforming

Uncontrolled terms:Fused images - Image guides - Imaging capabilities - Microstructured polymer optical fibers - Microstructured polymer optical fibers (mPOF) - Optic elements - Poly-methyl-methacrylate

Classification code:819.4 Fiber Products - 817 Plastics and Other Polymers: Products and Applications - 816.1 Processing of Plastics and Other Polymers - 815.1.1 Organic Polymers - 815.1 Polymeric Materials - 812.3 Glass - 812 Ceramics, Refractories and Glass - 801 Chemistry - 741.3 Optical Devices and Systems - 741.1.2 Fiber Optics - 741.1 Light/Optics - 732.2 Control Instrumentation - 535.2.2 Metal Forming Practice

DOI:10.1364/OL.34.002435

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 94>

 

Accession number:20141617587567

Title:Mitigation of sampling clock drift in asynchronously under-sampled optical bit pattern monitoring

Authors:Zhang, Huixing (1); Schmidt-Langhorst, Carsten (1); Zhao, Wei (2); Schubert, Colja (1)

Author affiliation:(1) Fraunhofer Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin, Germany; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17 Xinxi Road, 710119 ,Xi'an, China

Source title:Optics InfoBase Conference Papers

Abbreviated source title:Opt.InfoBase Conf. Papers

Monograph title:Asia Communications and Photonics Conference and Exhibition, ACP 2009

Issue date:2009

Publication year:2009

Language:English

E-ISSN:21622701

ISBN-13:9781557528773

Document type:Conference article (CA)

Conference name:Asia Communications and Photonics Conference and Exhibition, ACP 2009

Conference date:November 2, 2009  -  November 6, 2009

Conference location:Shanghai, China

Conference code:104333

Publisher:Optical Society of America

Abstract:We propose a bit pattern monitoring technique which effectively mitigates the random walk clock drift between data signal and sampling source in asynchronously undersampling systems. The method is verified by measurements of 40 Gb/s NRZ and 160 Gb/s RZ data signals. Quantitative analysis of the displayed timing jitter is performed. &copy; 2009 Optical Society of America.

Number of references:4

Main heading:Photonics

Controlled terms:Clocks - Exhibitions - Timing jitter

Uncontrolled terms:Bit patterns - Data signals - Measurements of - Monitoring techniques - Random Walk - Sampling clocks - Under-sampled - Under-sampling

Classification code:712 Electronic and Thermionic Materials - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 744 Lasers - 902.2 Codes and Standards - 943.3 Special Purpose Instruments

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 95>

 

Accession number:20101112774718

Title:Mitigation of sampling clock drift in asynchronously under-sampled optical bit pattern monitoring

Authors:Zhang, Huixing (1); Schmidt-Langhorst, Carsten (1); Zhao, Wei (2); Schubert, Colja (1)

Author affiliation:(1) Fraunhofer Heinrich Hertz Institute, Einsteinufer 37, 10587 Berlin, Germany; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No.17 Xianxi Road, 710119, Xi'an, China

Corresponding author:Zhang, H.(Huixingde@hotmail.com)

Source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Abbreviated source title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Monograph title:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Issue date:2009

Publication year:2009

Article number:5377281

Language:English

ISBN-13:9781557528773

Document type:Conference article (CA)

Conference name:2009 Asia Communications and Photonics Conference and Exhibition, ACP 2009

Conference date:November 2, 2009 - November 6, 2009

Conference location:Shanghai, China

Conference code:79515

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:We propose a bit pattern monitoring technique which effectively mitigates the random walk clock drift between data signal and sampling source in asynchronously undersampling systems. The method is verified by measurements of 40 Gb/s NRZ and 160 Gb/s RZ data signals. Quantitative analysis of the displayed timing jitter is performed. &copy;2009 Optical Society of America.

Number of references:4

Main heading:Monitoring

Controlled terms:Timing jitter

Uncontrolled terms:160 Gb/s - 40 Gb/s - Bit patterns - Clock drift - Data signals - Monitoring techniques - Quantitative analysis - Random Walk - Sampling clocks - Under-sampling

Classification code:943 Mechanical and Miscellaneous Measuring Instruments - 942 Electric and Electronic Measuring Instruments - 941 Acoustical and Optical Measuring Instruments - 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments - 722.3 Data Communication, Equipment and Techniques - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 718 Telephone Systems and Related Technologies; Line Communications

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 96>

 

Accession number:20094212387566

Title:Numerical analyses of splice losses of photonic crystal fibers

Authors:Xu, Zhongnan (1); Duan, Kailiang (2); Liu, Zejin (1); Wang, Yishan (2); Zhao, Wei (2)

Author affiliation:(1) College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China

Corresponding author:Duan, K.(xzn132227@163.com)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:23

Issue date:December 1, 2009

Publication year:2009

Pages:4527-4531

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:Splice losses between a photonic crystal fiber (PCF) and a single mode fiber (SMF) or a PCF are numerically investigated by using finite element method (FEM) with the circular perfectly matched layer (PML). Results show that the splice loss between a SMF and a PCF with air holes completely collapsed can reach many times of that between a SMF and a PCF without air-hole collapse. We calculate the rotation losses between two identical PCFs of three kinds: large mode area, polarization maintaining and grapefruit. It is shown that for the large mode area PCF and the grapefruit PCF, the rotation losses are sensitive to the wavelength when the rotation angle is larger than zero degree. The non-circular mode field distribution is the main source of the rotation loss. &copy; 2009 Elsevier B.V. All rights reserved.

Number of references:23

Main heading:Photonic crystal fibers

Controlled terms:Amplification - Crystal whiskers - Finite element method - Laser pulses - Nonlinear optics - Numerical methods - Photonic crystals - Rotation - Single mode fibers

Uncontrolled terms:FEM - PCF - PML - Rotation loss - Splice loss

Classification code:951 Materials Science - 744.1 Lasers, General - 801.4 Physical Chemistry - 921.6 Numerical Methods - 931.1 Mechanics - 933.1 Crystalline Solids - 933.1.1 Crystal Lattice - 741.3 Optical Devices and Systems - 741.1.1 Nonlinear Optics - 741.1 Light/Optics - 713.1 Amplifiers - 601.1 Mechanical Devices - 531.2 Metallography - 741.1.2 Fiber Optics

DOI:10.1016/j.optcom.2009.08.026

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 97>

 

Accession number:20092412124609

Title:Multistability evolution and hysteresis phenomena of dissipative solitons in a passively mode-locked fiber laser with large normal cavity dispersion

Authors:Liu, Xueming (1); Wang, Leiran (1); Li, Xiaohui (1); Sun, Hongbo (1); Lin, Aoxiang (1); Lu, Keqing (1); Wang, Yishan (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.(liuxm@opt.ac.cn)

Source title:Optics Express

Abbreviated source title:Opt. Express

Volume:17

Issue:10

Issue date:May 11, 2009

Publication year:2009

Pages:8506-8512

Language:English

E-ISSN:10944087

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:WE report on the experimental observations of multiple dissipative solitons in a passively mode-locked fiber laser with large normalcavity dispersion. The dynamic evolution of solitons as a function of the pump power is demonstrated, alternately evolving on the stable and unstable states. The proposed laser produces the multiple solitons of up to ten for the pump power of about 406 mW. Multistability and hysteresis phenomena observed in this report are qualitatively distinct from those observed in the large net-anomalous-dispersion conventional-soliton fiber lasers. The experimental results suggest that the accumulation of excessive pulse chirps together with the nonlinear polarization effect play key roles in the multistability operation of dissipative solitons. &copy; 2009 Optical Society of America.

Number of references:19

Main heading:Solitons

Controlled terms:Fiber lasers - Hysteresis - Pumping (laser) - Pumps

Uncontrolled terms:Dissipative solitons - Dynamic evolution - Experimental observation - Hysteresis phenomenon - Multistability - Nonlinear polarization effects - Passively mode-locked - Pulse chirp - Pump power - Unstable state

Classification code:961 Systems Science - 931.3 Atomic and Molecular Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 921.1 Algebra - 744.4 Solid State Lasers - 744.1 Lasers, General - 741.1.2 Fiber Optics - 701.2 Magnetism: Basic Concepts and Phenomena - 618.2 Pumps

DOI:10.1364/OE.17.008506

Database:Compendex

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<RECORD 98>

 

Accession number:20091512029067

Title:An applied alignment method of Doppler/SINS integrated navigation system with moving base

Authors:Bai, Hong-Yang (1); Xue, Xiao-Zhong (1); Chen, Shuai (1); Xie, Bao-Tong (2); Li, Feng (2)

Author affiliation:(1) National Key Laboratory of Transient Physics, NUST, Nanjing 210094, China; (2) Shanxi Changling Electronic Science and Technology Co. Ltd., Baoji 721006, China

Corresponding author:Bai, H.-Y.

Source title:Dandao Xuebao/Journal of Ballistics

Abbreviated source title:Dandao Xuebao

Volume:21

Issue:1

Issue date:March 2009

Publication year:2009

Pages:51-54

Language:Chinese

ISSN:1004499X

CODEN:DAXUFB

Document type:Journal article (JA)

Publisher:Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing, 210094, China

Abstract:In order to improve the precision of Doppler/SINS integrated navigation system with moving base, an initial alignment method was proposed by making a uniform circular motion of the car according to the phenomena found in the Doppler/SINS navigation system tests. The platform error-angles of the SINS can be estimated quickly, and prediction precise can be improved by this method. Experiment verified the feasibility and validity of this method. Theoretical analysis shows that the steady state limit of the estimation can be highly reduced by proposed method, and the method is valuable for engineering application.

Number of references:8

Main heading:Navigation systems

Controlled terms:Alignment - Control theory - Electric network analysis - Kalman filters - Launching - Navigation

Uncontrolled terms:Alignment methods - Circular motions - Doppler navigation system - Engineering applications - Initial alignment - Integrated navigation - Integrated navigation systems - Moving base - Platform errors - Steady state

Classification code:716.3 Radio Systems and Equipment - 716.1 Information Theory and Signal Processing - 703.2 Electric Filters - 703.1.1 Electric Network Analysis - 674.1 Small Marine Craft - 731.1 Control Systems - 672 Naval Vessels - 603.1 Machine Tools, General - 601.1 Mechanical Devices - 434.4 Waterway Navigation - 431.5 Air Navigation and Traffic Control - 655.1 Spacecraft, General

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 99>

 

Accession number:20091412008481

Title:First-principle analysis on fine structure of Pb<inf>0.5</inf>Sr<inf>0.5</inf>TiO<inf>3</inf>

Authors:Zhang, Weihu (1); Zhang, Fuchun (1); Zhang, Zhiyong (4); Yan, Junfeng (4)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China; (2) Graduate University, Chinese Academy of Sciences, Beijing 100039, China; (3) College of Physics and Electronic Information, Yan'an University, Yan'an 716000, China; (4) Information Science and Technology Institution, Northwest University, Xi'an 710127, China

Corresponding author:Zhang, W.(ydzwh@163.com)

Source title:Jinshu Xuebao/ Acta Metallurgica Sinica

Abbreviated source title:Jinshu Xuebao

Volume:45

Issue:2

Issue date:February 2009

Publication year:2009

Pages:217-222

Language:Chinese

ISSN:04121961

CODEN:CHSPA4

Document type:Journal article (JA)

Publisher:Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110015, China

Abstract:The electronic structures and properties of Pb<inf>0.5</inf>Sr<inf>0.5</inf>TiO<inf>3</inf> (PST) were calculated by the plane wave ultra-soft pseudo-potential and virtual crystal approximate (VCA) technologies based upon the density function theory (DFT) within the general gradient approximation. The changed trend of the total energy of PST solid solution was analyzed, and the equilibrium configuration of A-site cations (Pb and Sr) in the ferroelectric phase was determined. The calculated results revealed that the energy of PST appeared minimum when the off-center displacement of Ti atom was up to 0.012 nm along (001) direction. The strong hybridization between O 2p and Ti 3d and part hybridizations between O-Pb and O-Sr showed an increase in the distortion of TiO<inf>6</inf> octahedron and a reduce in the system total energy, which led to the formation of ferroelectric domains.

Number of references:19

Main heading:Lead alloys

Controlled terms:Electronic structure - Ferroelectricity - Lead - Solid solutions - Solid state physics

Uncontrolled terms:Ferroelectric - Fine structure - First-principle - Pb<inf>0.5</inf>Sr<inf>0.5</inf>TiO<inf>3</inf> (PST) - Virtual crystal approximation (VCA)

Classification code:546.1 Lead and Alloys - 701.1 Electricity: Basic Concepts and Phenomena - 931.1 Mechanics - 931.3 Atomic and Molecular Physics - 933 Solid State Physics - 933.1.1 Crystal Lattice

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 100>

 

Accession number:20093512273392

Title:Temporal behaviour of open-circuit photovoltaic solitons

Authors:Mei-Zhi, Zhang (1); Ke-Qing, Lu (1); Guang-Hua, Cheng (1); Ke-Hao, Li (1); Yi-Qi, Zhang (1); Yu-Hong, Zhang (1); Yan-Peng, Zhang (3)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Graduate School of Chinese, Academy of Sciences, Beijing 100039, China; (3) Department of Electronic Science and Technology, Xi'An Jiaotong University, Xi'an 710049, China

Corresponding author:Mei-Zhi, Z.(meizhi_zhang@126.com)

Source title:Chinese Physics B

Abbreviated source title:Chin. Phys.

Volume:18

Issue:7

Issue date:2009

Publication year:2009

Pages:2839-2845

Language:English

ISSN:16741056

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:Based on the time-dependent band-transport model in a photorefractive medium, dark open-circuit photovoltaic (PV) solitons are investigated both theoretically and experimentally. Compared with those of the time-independent models, our theoretical results revealed that quasi-steady-state and steady-state PV solitons can both be obtained. Our results also revealed that when r &lt; 1 (r is the normalized intensity at infinity), the full width at half maximum (FWHM) of solitons decreases monotonically to a constant value; when r &gt; 1, however, the FWHM of solitons first decreases to a minimum before it increases to a constant value. Moreover, the FWHM of steady solitons decreases with increasing intensity ratio for r &lt; 1, and increases with increasing intensity ratio for r &gt; 1. We further observed dark PV solitons in experiments, and recorded their evolution. These results indicated that steady solitons can be observed at low optical power, while quasi-steady-state solitons can only be generated at higher optical power. Good agreement is found between theory and experiment. &copy; 2009 Chin. Phys. Soc. and IOP Publishing Ltd.

Number of references:18

Main heading:Solitons

Controlled terms:Experiments - Full width at half maximum - Light refraction - Light transmission - Photoreactivity - Photorefractive materials

Uncontrolled terms:Full-width at half maximums - Independent model - Intensity ratio - Optical power - Photo-refractive - Photorefractive effect - Photovoltaic soliton - Photovoltaic solitons - Quasi-steady state - Quasi-steady-state soliton  - Temporal behaviour - Theoretical result - Time-dependent - Transport models

Classification code:741.1 Light/Optics - 741.3 Optical Devices and Systems - 901.3 Engineering Research - 921 Mathematics - 921.1 Algebra - 931.3 Atomic and Molecular Physics

DOI:10.1088/1674-1056/18/7/036

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 101>

 

Accession number:20095012544433

Title:Supercontinuum generation in air-silica photonic nanowires

Authors:Hu, Xiaohong (1); Gong, Yongkang (1); Liu, Xueming (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.(liuxm@opt.ac.cn)

Source title:Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest

Abbreviated source title:Pacif Rim Conf Lasers Electro Opt CLEO Tech Dig

Monograph title:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Issue date:2009

Publication year:2009

Article number:5292515

Language:English

ISBN-13:9781424438303

Document type:Conference article (CA)

Conference name:CLEO/Pacific Rim 2009 - 8th Pacific Rim Conference on Lasers and Electro-Optics

Conference date:August 30, 2009 - September 3, 2009

Conference location:Shanghai, China

Conference code:78645

Sponsor:Chinese Institute of Electronics; Chinese Optical Society; Chinese Physical Society; National Natural Science Foundation of China

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:Based on a kind of air-silica photonic nanowires with large dispersion and high nonlinearity, we numerically investigate supercontinuum generation. Such nanowires can achieve the bandwidth of more than 800 nm in about 4.6-mm length. &copy; 2009 IEEE.

Number of references:7

Main heading:Nanowires

Controlled terms:Electric wire - Fiber optics - Silica

Uncontrolled terms:Fiber properties - High nonlinearity - Large dispersion - Numerical approximation and analysis - Photonic nanowires - Supercontinuum generations

Classification code:933 Solid State Physics - 812 Ceramics, Refractories and Glass - 804.2 Inorganic Compounds - 761 Nanotechnology - 741.1.2 Fiber Optics - 708.2 Conducting Materials - 482.2 Minerals

DOI:10.1109/CLEOPR.2009.5292515

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 102>

 

Accession number:20095312601953

Title:The fabrication of circular cross-section waveguide in two dimensions with a dynamical slit

Authors:Zhang, Y. (1); Cheng, G. (1); Huo, G. (1); Wang, Y. (1); Zhao, W. (1); Mauclair, C. (2); Stoian, R. (2); Hui, R. (3)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, CAS, Xi'an Shaanxi 710119, China; (2) Laboratoire Hubert Curien, Universite Jean Monnet, Universite de Lyon, 42000 Saint Etienne, Saint Etienne 42023, France; (3) Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS 66044, United States

Corresponding author:Zhang, Y.

Source title:Laser Physics

Abbreviated source title:Laser Phys.

Volume:19

Issue:12

Issue date:December 2009

Publication year:2009

Pages:2236-2241

Language:English

ISSN:1054660X

E-ISSN:15556611

Document type:Journal article (JA)

Publisher:Maik Nauka-Interperiodica Publishing, Profsoyuznaya Ul 90, Moscow, 117997, Russia

Abstract:A waveguide with a circular transverse profile can be obtained by using a slit beam shaping method. Applications about optical circuit chips in glass require a circular cross-section waveguide in two dimensions. Here we reported to realize a fabrication of circular cross-section waveguide in two dimensions by rotating the slit corresponding to the tangent line of the arc of the waveguide. The dependence of cross-section on width of the slit was investigated in experiment. The difference of slit width between geometrical optics prediction and experimental result was explained by considering the focal shift in xy directions due to diffraction effects. &copy; 2009 Pleiades Publishing, Ltd.

Number of references:29

Main heading:Waveguides

Controlled terms:Light

Uncontrolled terms:Beam-shaping - Circular cross-sections - Diffraction effects - Focal shifts - Optical circuits - Slit width - Transverse profile - Two-dimension

Classification code:714.3 Waveguides - 741.1 Light/Optics

DOI:10.1134/S1054660X0923008X

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 103>

 

Accession number:20093012220943

Title:Dark incoherent spatial solitons in logarithmically saturable nonlinear media

Authors:Yi-Qi, Zhang (1); Ke-Qing, Lu (1); Mei-Zhi, Zhang (1); Ke-Hao, Li (1); Shuang, Liu (2); Yan-Peng, Zhang (4)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Optoelectronic Technology Department, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (3) Graduate School, Chinese Academy of Sciences, Beijing 100039, China; (4) Department of Electronic Science and Technology, Xi'An Jiaotong University, Xi'an 710049, China

Corresponding author:Yi-Qi, Z.(zhangyitsee@opt.ac.cn)

Source title:Chinese Physics B

Abbreviated source title:Chin. Phys.

Volume:18

Issue:6

Issue date:2009

Publication year:2009

Pages:2359-2363

Language:English

ISSN:16741056

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:This paper studies numerically the dark incoherent spatial solitons propagating in logarithmically saturable nonlinear media by using a coherent density approach and a split-step Fourier approach for the first time. Under odd and even initial conditions, a soliton triplet and a doublet are obtained respectively for given parameters. Simultaneously, coherence properties associated with the soliton triplet and doublet are discussed. In addition, if the values of the parameters are properly chosen, five and four splittings from the input dark incoherent spatial solitons can also form. Lastly, the grayness of the soliton triplet and that of the doublet are studied, in detail. &copy; 2009 Chin. Phys. Soc. and IOP Publishing Ltd.

Number of references:19

Main heading:Solitons

Uncontrolled terms:Coherence length - Coherence properties - Incoherent spatial solitons - Initial conditions - Logarithmically nonlinear media - Non-linear media - Spatial solitons - Split-step Fourier - Splittings

Classification code:921.1 Algebra - 931.3 Atomic and Molecular Physics

DOI:10.1088/1674-1056/18/6/040

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 104>

 

Accession number:20090811914650

Title:Multiple reflections and reshaping effect of finite-sized light beams in thin dielectric slab configuration

Authors:Zhu, Qibiao (1); Chen, Xi (1); Li, Chunfang (1)

Author affiliation:(1) Department of Physics, Shanghai University, Shanghai 200444, China; (2) State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sinences, Xi'an 710068, China

Corresponding author:Zhu, Q.(qbzhu@shu.edu.cn)

Source title:Guangxue Xuebao/Acta Optica Sinica

Abbreviated source title:Guangxue Xuebao

Volume:29

Issue:1

Issue date:January 2009

Publication year:2009

Pages:262-267

Language:Chinese

ISSN:02532239

CODEN:GUXUDC

Document type:Journal article (JA)

Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China

Abstract:The physical mechanism of the anomalous lateral displacement of the transmitted finite-sized light beam in a thin dielectric slab configuration is investigated from the view point of the interference between multiple light beams, due to the multiple reflections. The physical restriction, which agrees the mathematical condition of stationary phase approach, is advanced. Numerical stimulation shows that the anomalous lateral displacement is produced by the reshaping of the transmitted components undergoing different phase shifts due to the multiple reflections inside the slab. From the view point of a beam as a whole, the lateral displacement can be understood by the fact that the entire transmitted beam is the result of reshaping of the multiply transmitted beams.

Number of references:22

Main heading:Reflection

Controlled terms:Chromatographic analysis - Light - Physical optics

Uncontrolled terms:Dielectric slabs - Finite-sized light beams - Lateral displacement - Multiple light beams - Multiple reflections - Numerical stimulations - Physical mechanisms - Physical restrictions - Reshaping effect - Stationary phase approaches  - Transmitted beams

Classification code:711 Electromagnetic Waves - 741.1 Light/Optics - 801 Chemistry

DOI:10.3788/AOS20092901.0262

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 105>

 

Accession number:20093112232332

Title:Stability function of lightwaves based on the cascade of multiple four-wave mixing processes and its application to multi-wavelength erbium lasers

Authors:Liu, Xueming (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.(liuxueming72@yahoo.com)

Source title:Journal of Modern Optics

Abbreviated source title:J. Mod. Opt.

Volume:56

Issue:7

Issue date:April 2009

Publication year:2009

Pages:903-909

Language:English

ISSN:09500340

E-ISSN:13623044

CODEN:JMOPEW

Document type:Journal article (JA)

Publisher:Taylor and Francis Ltd., 4 Park Square, Milton Park, Abingdon, Oxfordshire, OX14 4RN, United Kingdom

Abstract:On the basis of the cascade of multiple four-wave mixing (FWM) processes, the energy stability function of multiple lightwaves propagating through fibers is proved theoretically and confirmed experimentally. This function can help multiple lasers to redistribute power from those that have more to those that have less. Theoretical and experimental results show that the ability of the FWM-induced stability effect gradually becomes weaker with the increase of pump number. The stability effect of waves by multiple FWM processes can effectively overcome the homogeneous gain broadening of an erbium-doped fiber (EDF). By adjusting the attenuators and tuning fiber Bragg gratings, dual-, triple-, and four-wavelength EDF lasers with good stability are demonstrated experimentally at room temperature.

Number of references:23

Main heading:Four wave mixing

Controlled terms:Erbium - Fiber Bragg gratings - Fiber lasers - Fiber optic components - Fiber optic sensors - Fibers - Mixing - Response time (computer systems) - Ring lasers - Stability

Uncontrolled terms:Energy stability - Erbium doped fibers - Erbium laser - Good stability - Homogeneous gain broadening - Light wave - Multi-wavelength erbium-doped fiber laser - Multiple lasers - Multiwavelength - Room temperature  - Stability function

Classification code:961 Systems Science - 744.4 Solid State Lasers - 801 Chemistry - 802.3 Chemical Operations - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 819.4 Fiber Products - 931 Classical Physics; Quantum Theory; Relativity - 951 Materials Science - 744 Lasers - 547.2 Rare Earth Metals - 711.1 Electromagnetic Waves in Different Media - 722.4 Digital Computers and Systems - 741.3 Optical Devices and Systems - 731.4 System Stability - 741.1 Light/Optics - 741.1.2 Fiber Optics - 732.2 Control Instrumentation

DOI:10.1080/09500340902795976

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 106>

 

Accession number:20091311987716

Title:A novel micro zoom system design with liquid lens

Authors:Wei, Zhang (1); Weijian, Tian (1)

Author affiliation:(1) Lab of Information and Photonic Technology, State Key Lab of Transient Optics Technology, Xi'an Institute of Optical and Precision Mechanics of CAS, Xi'an 710119; (2) Graduate School of the CAS, Beijing 100039

Corresponding author:Wei, Z.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7156

Monograph title:2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

Issue date:2009

Publication year:2009

Article number:715603

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments

Conference date:November 16, 2008 - November 19, 2008

Conference location:Beijing, China

Conference code:75967

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:Today zoom optical system is more used in many fields. It can be satisfied with many special imaging instances with its superiority on ability of supplying different visual field and resolution. But the conventional zoom system must have more than two moving elements to realize focus turning and imaging shift compensation at the same time. This makes the system have large volume and weight, and complicated structure. Liquid lens is a kind of novel optical device based on biological vision system. By utilizing this device, zoom camera can be designed in a new simple way. In this paper, a liquid lens operated by a stepper motor had been demonstrated. A new way of designing a micro zoom system without any moving lens had also been introduced. And a kind of hybrid diffractive-refractive liquid lens had been presented to improve the imaging quality. A micro bifocal zoom endoscope system including two pieces of liquid lens was contrived. Finally, it is thought that although many technologies, especially the package method should be solved better, the liquid lens micro zoom system has very wide potential application in the fields that the system's volume and weight are strictly limited, such as endoscope, mobile, PDA and so on. &copy; 2009 SPIE.

Number of references:13

Main heading:Optical instruments

Controlled terms:Electronic medical equipment - Lenses - Liquids - Optical design - Optical systems - Photolithography

Uncontrolled terms:Bifocal zoom endoscope - Hybrid diffractive-refractive - Liquid lens - Micro zoom system - No moving elements

Classification code:931.2 Physical Properties of Gases, Liquids and Solids - 745.1 Printing - 741.3 Optical Devices and Systems - 941.3 Optical Instruments - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 462.1 Biomedical Equipment, General - 715.2 Industrial Electronic Equipment

DOI:10.1117/12.811856

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 107>

 

Accession number:20094712477849

Title:Compact and efficient triple-pass optical parametric chirped pulse amplification

Authors:Wang, Hong-Ying (1); Liu, Hong-Jun (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Physics Department, Xi'An University of Arts and Science, Xi'an 710065, China

Corresponding author:Liu, H.-J.(liuhongjun@opt.ac.cn)

Source title:Journal of Optics A: Pure and Applied Optics

Abbreviated source title:J Opt A Pure Appl Opt

Volume:11

Issue:6

Issue date:2009

Publication year:2009

Article number:065205

Language:English

ISSN:14644258

E-ISSN:17413567

CODEN:JOAOF8

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:Compact and efficient triple-pass optical parametric chirped pulse amplification in a single crystal has been demonstrated. The signal was triple-pass amplified in a single nonlinear crystal by a nanosecond pump pulse. The first-pass optical parametric amplification is completely phase matched in the plane of the maximum effective nonlinearity, and the other two passes work symmetrically near to the first-pass optical parametric amplification plane. This architecture efficiently increases the overall gain, overcomes the optical parametric fluorescence, and clearly simplifies the amplification scheme. &copy; 2009 IOP Publishing Ltd.

Number of references:20

Main heading:Parametric oscillators

Controlled terms:Amplification - Laser optics - Lasers - Pulse amplifiers - Single crystals - Ultrafast phenomena

Uncontrolled terms:Amplification scheme - Laser amplifiers - Non-Linearity - Optical parametric amplification - Optical parametric chirped-pulse amplification - Parametric fluorescence - Parametric oscillators and amplifiers - Pump pulse - Single nonlinear crystal - Ultrafast lasers  - Ultrafast technology

Classification code:933.1 Crystalline Solids - 931.3 Atomic and Molecular Physics - 744.9 Laser Applications - 744.1 Lasers, General - 741.1.1 Nonlinear Optics - 741.1 Light/Optics - 713.4 Pulse Circuits - 713.2 Oscillators - 713.1 Amplifiers

DOI:10.1088/1464-4258/11/6/065205

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 108>

 

Accession number:20090111825730

Title:Kinetic characterization of photoinduced anisotropy in diarylethene film

Authors:Chen, Liju (1); Yao, Baoli (1); Han, Junhe (1); Gao, Peng (1); Chen, Yi (3); Wang, Yingli (1); Lei, Ming (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China; (2) Graduate School, the Chinese Academy of Sciences, Beijing, 100039, China; (3) Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100080, China

Corresponding author:Yao, B.(yaobl@opt.ac.cn)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:4

Issue date:February 15, 2009

Publication year:2009

Pages:568-573

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:Based on the theoretical model we have proposed, a complete study on the kinetics of photoinduced anisotropy in diarylethene films is performed. The kinetic curves of molecular concentration, photoinduced dichroism and birefringence are calculated, respectively. It is found that the colored molecular concentration decreases with the increase of the excitation exposure until saturation, and the photoinduced anisotropy increases to a maximum and then decreases gradually. The optimal exposure is 260 J/cm<sup>2</sup>. In addition, the transmittance of probe beam reflecting the anisotropy is measured by experiment. The theoretical results are compared with experimental data, and basic concordance is found between both sets of data. &copy; 2008 Elsevier B.V. All rights reserved.

Number of references:22

Main heading:Anisotropy

Controlled terms:Optical properties - Photochromism

Uncontrolled terms:Diarylethene - Experimental datums - Kinetic characterizations - Kinetic curves - Molecular concentrations - Photoinduced anisotropy - Photoinduced dichroisms - Probe beams - Theoretical models

Classification code:741.1 Light/Optics - 931.2 Physical Properties of Gases, Liquids and Solids

DOI:10.1016/j.optcom.2008.10.050

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 109>

 

Accession number:20093212240090

Title:Transient and nonlinear analysis of slow-light pulse propagation in an optical fiber via stimulated Brillouin scattering

Authors:Ren, Liyong (1); Yasuo, Tomita (1)

Author affiliation:(1) Department of Electronics Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Ren, L.(renliy@opt.ac.cn)

Source title:Journal of the Optical Society of America B: Optical Physics

Abbreviated source title:J Opt Soc Am B

Volume:26

Issue:7

Issue date:July 1, 2009

Publication year:2009

Pages:1281-1288

Language:English

ISSN:07403224

CODEN:JOBPDE

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:We investigate slow-light pulse propagation in an optical fiber via transient stimulated Brillouin scattering. Space-time evolution of a generating slow-light pulse is numerically calculated by solving three-wave coupledmode equations between a pump beam, an acoustic wave, and a counterpropagating signal pulse. Our mathematical treatments are applicable to both narrowband and broadband pump cases. We show that the time delay of 85% pulse width can be obtained for a signal pulse of the order of subnanosecond pulse width by using a broadband pump, while the signal pulse is broadened only by 40% of the input signal pulse. The physical origin of the pulse broadening and distortion is explained in terms of the temporal decay of the induced acoustic field. &amp;copy; 2009 Optical Society of America.

Number of references:27

Main heading:Light pulse generators

Controlled terms:Acoustic fields - Acoustic waves - Light polarization - Light propagation - Light transmission - Nonlinear analysis - Optical fibers - Optical materials - Pumps - Stimulated Brillouin scattering  - Ultrasonics - Wave equations

Uncontrolled terms:Counterpropagating - Coupled mode equation - Input signal - Mathematical treatments - Narrow bands - Optical Society of America - Pulse broadening - Pulse width - Pump beams - Signal pulse  - Slow-light pulse - Space-time evolution - Sub-nanosecond pulse - Temporal decay

Classification code:921.2 Calculus - 921 Mathematics - 753.1 Ultrasonic Waves - 751.1 Acoustic Waves - 751 Acoustics, Noise. Sound - 941.2 Acoustic Variables Measurements - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 731.1 Control Systems - 703.1.1 Electric Network Analysis - 618.2 Pumps - 741.1.2 Fiber Optics

DOI:10.1364/JOSAB.26.001281

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 110>

 

Accession number:20093712295550

Title:A prototype X-ray framing camera with variable exposure time based on double-gated micro-channel plates

Authors:Yang, Wenzheng (1); Hou, Xun (1); Bai, Yonglin (1); Bai, Xiaohong (2); Liu, Baiyu (1); Zhao, Junping (2); Qin, Junjun (2)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2) Key Laboratory of Ultrafast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an 710119, China

Corresponding author:Yang, W.(ywz@opt.ac.cn)

Source title:IEEE Transactions on Nuclear Science

Abbreviated source title:IEEE Trans Nucl Sci

Volume:56

Issue:4

Issue date:August 2009

Publication year:2009

Pages:2487-2492

Article number:5204668

Language:English

ISSN:00189499

CODEN:IETNAE

Document type:Conference article (CA)

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:We present a novel X-ray frame camera with variable exposure time that is based on double-gated micro-channel plates (MCP). Two MCPs are connected so that their channels form a Chevron-MCP structure, and four parallel micro-strip lines (MSLs) are deposited on each surface of the Chevron-MCP. The MSLs on opposing surfaces of the Chevron-MCP are oriented normal to each other and subjected to high voltage. The MSLs on the input and output surfaces are fed high voltage pulses to form a gating action. In forming two-dimensional images, modifying the width of the gating pulse serves to set exposure times (ranging from ps to ms) and modifying the delay between each gating pulse serves to set capture times. This prototype provides a new tool for high-speed X-ray imaging, and this paper presents both simulations and experimental results obtained with the camera. &copy; 2006 IEEE.

Number of references:14

Main heading:Image storage tubes

Controlled terms:Cameras - Electric potential - High speed cameras - Microchannels - Motion picture cameras - Plates (structural components) - Two dimensional - X rays

Uncontrolled terms:Exposure-time - Gating pulse - High speed imaging - High voltage - High voltage pulse - High-speed - Input and outputs - Micro channel plate - Microchannel plate (MCP) - Microstrip-line  - Multi-framing camera - New tools - Two-dimensional images - X-ray diagnosis - X-ray framing camera - Xray imaging

Classification code:932.1 High Energy Physics - 902.1 Engineering Graphics - 742.2 Photographic Equipment - 723.5 Computer Applications - 942.2 Electric Variables Measurements - 714.1 Electron Tubes - 631 Fluid Flow - 604 Metal Cutting and Machining - 408.2 Structural Members and Shapes - 701.1 Electricity: Basic Concepts and Phenomena

DOI:10.1109/TNS.2009.2025176

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 111>

 

Accession number:20095112550148

Title:A new algorithm for automatic white balance based on CCD camera

Authors:Xu, Zhaohui (1); Li, Han (2); Tian, Yan (1); Jiao, Guohua (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710068; (2) Institute of Information Engineering, Chang'an University, Xi'an 710064

Corresponding author:Xu, Z.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7495

Monograph title:MIPPR 2009 - Automatic Target Recognition and Image Analysis

Issue date:2009

Publication year:2009

Article number:74950X

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819478061

Document type:Conference article (CA)

Conference name:MIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition

Conference date:October 30, 2009 - November 1, 2009

Conference location:Yichang, China

Conference code:78791

Sponsor:Natl. Lab. Multi-spectral Inf. Process. Technol.; Huazhong University of Science and Technology; National Natural Science Foundation of China; China Three Gorges University

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:Auto white balance plays a key role in a digital camera system, and determines image quality to a large extent. If the white balance is not to be considered in the development of CCD camera, under the different color temperatures, this will cause chromatic aberration. A new effective automatic white balance algorithm for digital camera is proposed in this paper. With a new color temperature estimation method based on the extraction both skin and white regions, the algorithm can find more proper pixels to calculate the averaged chromatic aberration to improve the precision of the estimated color temperature. And to some extent, the algorithm solves the problem that the classical automatic white balance algorithm fails in estimating color temperature in the past in the case of the images have not white regions. &copy; 2009 Copyright SPIE - The International Society for Optical Engineering.

Number of references:6

Main heading:Cameras

Controlled terms:Aberrations - Algorithms - Automatic target recognition - CCD cameras - Color - Digital cameras - Estimation - Image analysis - Image quality - Skin  - Temperature distribution - Video cameras

Uncontrolled terms:Automatic white balance - Chromatic aberration - Color temperature correction - Color temperatures - Gain calculation - Granular space - Information granularity

Classification code:723.5 Computer Applications - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 742.2 Photographic Equipment - 921 Mathematics - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 723.2 Data Processing and Image Processing - 404.1 Military Engineering - 461.2 Biological Materials and Tissue Engineering - 641.1 Thermodynamics - 714.2 Semiconductor Devices and Integrated Circuits - 716 Telecommunication; Radar, Radio and Television - 716.4 Television Systems and Equipment - 723 Computer Software, Data Handling and Applications

DOI:10.1117/12.832310

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 112>

 

Accession number:20091211974984

Title:Analysis of a moderate resolution Fourier transform imaging spectrometer

Authors:Mu, Tingkui (1); Zhang, Chunmin (1); Zhao, Baochang (2)

Author affiliation:(1) School of Science, Xi'an Jiaotong University, 2358# Mailbox, Xianning West Rd. 28#, Xi'an, 710049, China; (2) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China

Corresponding author:Mu, T.(tkmu2000@foxmail.com)

Source title:Optics Communications

Abbreviated source title:Opt Commun

Volume:282

Issue:9

Issue date:May 1, 2009

Publication year:2009

Pages:1699-1705

Language:English

ISSN:00304018

CODEN:OPCOB8

Document type:Journal article (JA)

Publisher:Elsevier, P.O. Box 211, Amsterdam, 1000 AE, Netherlands

Abstract:A moderate resolution Fourier transform imaging spectrometer based on a modified Michelson interferometer is presented. The moving part of the interferometer is a moving wedged prism (MWP) instead of a moving mirror. The principle of the interferometer is described and the optical path difference as a function of the displacement of the MWP is calculated. Theoretical calculation and analysis are presented for the two moveable directions (hypotenuse and right angle side) of the MWP. The modified Michelson interferometer is not so sensitive to the non-uniform variation of moving speed and the environmental vibrations compared with the conventional Michelson interferometer. It is compact and has a large numerical aperture. The interferometer facilitated by CCD camera and the accompanying digital hardware and software are becoming the imaging spectrometer with moderate resolution is applicable in ultraviolet-infrared region. &copy; 2009 Elsevier B.V. All rights reserved.

Number of references:29

Main heading:Fourier transforms

Controlled terms:Charge coupled devices - Interferometry - Michelson interferometers - Prisms - Spectrometers - Spectrometry

Uncontrolled terms:Digital hardwares - Environmental vibrations - Fourier transform imaging spectrometer - Imaging spectrometers - Infrared regions - Moderate resolutions - Modified Michelson interferometer - Moving mirrors - Moving parts - Moving speed  - Moving wedged prism - Non-uniform - Numerical apertures - Optical path difference - Theoretical calculations

Classification code:714.2 Semiconductor Devices and Integrated Circuits - 741.3 Optical Devices and Systems - 801 Chemistry - 921.3 Mathematical Transformations - 941.3 Optical Instruments - 941.4 Optical Variables Measurements

DOI:10.1016/j.optcom.2009.01.022

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 113>

 

Accession number:20101212786833

Title:Imaging research on a new nine-sub-aperture sparse-aperture system

Authors:Liang, Shitong (1); Yang, Jianfeng (1); Xue, Bin (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China; (2) Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author:Liang, S.(liangshitong@yahoo.cn)

Source title:Guangxue Xuebao/Acta Optica Sinica

Abbreviated source title:Guangxue Xuebao

Volume:29

Issue:SUPPL. 2

Issue date:December 2009

Publication year:2009

Pages:216-220

Language:Chinese

ISSN:02532239

CODEN:GUXUDC

Document type:Journal article (JA)

Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China

Abstract:A new sparse-aperture system composed of nine sub-apertures and its detail configuration are given. It is modeled in the optical software. Its modulation transfer function (MTF) distributions with different fill factor are analyzed. The MTF of the new configuration distributes evenly in a regular hexagon. The long baseline between sub-apertures can achieve a higher cut-off frequency. This distribution has a better spatial frequency response. Imaging simulations with Wiener filtering and L-R filtering are done. The standard deviation between the results of filtered images and the result of single-aperture imaging simulation is used as evaluating indicator. It shows that the imaging quality is improved with the increase of the fill factor. Wiener filtering and L-R filtering can also improve the imaging quality. The standard deviation decreases by 12% and 14% after using the Wiener filtering and 8% and 11% using L-R filtering with the fill factor at 10% and 25%. The new configuration is useful and can get good imaging quality.

Number of references:8

Main heading:Transfer functions

Controlled terms:Adaptive filtering - Frequency response - Image reconstruction - Modulation - Optical design - Optical transfer function - Restoration - Statistics

Uncontrolled terms:Image restoration - Imaging simulation - Modulation transfer function - Modulation transfer function (MTF) - Sparse aperture

Classification code:922.2 Mathematical Statistics - 921 Mathematics - 913.5 Maintenance - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 731.1 Control Systems - 723.2 Data Processing and Image Processing - 718 Telephone Systems and Related Technologies; Line Communications - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 703.1 Electric Networks - 409 Civil Engineering, General - 402 Buildings and Towers

DOI:10.3788/AOS200929s2.0216

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 114>

 

Accession number:20094312398242

Title:Fabrication of Ge-Se-Sb chalcogenide glass with large size and its MTF performance

Authors:Dai, S. (1); Li, M. (3); Peng, B. (2); Zhu, J. (1); Wang, X. (1); Shen, X. (1); Ding, L. (3); Xu, T. (1); Nie, Q. (1)

Author affiliation:(1) Faculty of Information Science and Engineering, Ningbo University, Ningbo, 31521, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, 710119, China; (3) Kunming IR-Optics Technology Co. Ltd., Kunming, 650217, China

Corresponding author:Dai, S.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7383

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Advances in Infrared Imaging and Applications

Issue date:2009

Publication year:2009

Article number:738313

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476647

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:77315

Sponsor:Chinese Soci. Astronaut. Photoelectr. Technol. Prof. Comm.

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:In this paper, the methods of preparation of Ge-Se-Sb glasses with low impurity content were developed, and a large Ge-Sb-Se glass rod (&phi;85&times;80mm) with good quality was obtained. The physical and optical properties of the glass were measured. The optical homogeneity (&Delta;n) at 2&mu;m at different places inside the same bulk was less &plusmn;2&times;10 <sup>-4</sup>. In order to accurately evaluate the infrared resolution of our prepared glass, a lens of f 19mm F/#1.3 was used to evalue its modulation transfer function (MTF) performance. The MTF value at 20cycles/mm for 20&deg;C was 0.52. The area under MTF curve covers 82.466% of the image space, and has a value of 21.8 cycles/mm. &copy; 2009 SPIE.

Number of references:5

Main heading:Optical properties

Controlled terms:Functions - Germanium - Glass - Imaging systems - Infrared devices - Modulation - Optical transfer function - Selenium compounds - Thermography (imaging) - Transfer functions

Uncontrolled terms:Chalcogenide glass - Glass rods - Image space - Impurity content - Large sizes - Modulation transfer function - Optical homogeneity

Classification code:921 Mathematics - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 742.1 Photography - 746 Imaging Techniques - 804 Chemical Products Generally - 804.1 Organic Compounds - 804.2 Inorganic Compounds - 812.3 Glass - 741 Light, Optics and Optical Devices - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 703.1 Electric Networks - 712.1.2 Compound Semiconducting Materials - 731.1 Control Systems - 716 Telecommunication; Radar, Radio and Television - 718 Telephone Systems and Related Technologies; Line Communications - 723.2 Data Processing and Image Processing - 717 Optical Communication

DOI:10.1117/12.835328

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 115>

 

Accession number:20091512019382

Title:SBS-based slow light in optical fibers: Optimum design considerations for undistorted slow-light signal propagation in steady-state and transient regimes

Authors:Ren, Liyong (1); Tomita, Yasuo (1)

Author affiliation:(1) Department of Electronics Engineering, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Ren, L.(renliy@bellevue.ee.uec.ac.jp)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7226

Monograph title:Advances in Slow and Fast Light II

Issue date:2009

Publication year:2009

Article number:722605

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:Advances in Slow and Fast Light II

Conference date:January 25, 2009 - January 27, 2009

Conference location:San Jose, CA, United states

Conference code:75992

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:Slow-light techniques are promising for obtaining tunable delay lines which are potential candidates for bit synchronization and buffer applications in optical packet switching networks. We describe a theoretical study on slow-light in optical fibers based on stimulated Brillouin scattering (SBS). A general model for resonant three-wave nonlinear interactions between a pump beam, an acoustic wave and a counterpropagating signal pulse is proposed. Analytic and numerical solutions of the three-wave coupled equations are obtained for the steady-state and the transient regimes, respectively. Space-time evolutions of a generating slow-light pulse for both small-signal and pump-depletion (or gain-saturation) cases in the above two regimes are given and compared, for different pump powers and signal pulse widths. The physical origin of broadening and distortion of slow-light pulse is discussed. Optimum design considerations for undistorted slow-light signal propagation also are discussed. &copy; 2009 SPIE.

Number of references:40

Main heading:Pulse generators

Controlled terms:Fiber optics - Fibers - Light polarization - Light transmission - Optical materials - Packet switching - Pumps - Scattering - Signal distortion - Single mode fibers  - Stimulated Brillouin scattering - Switching networks - Ultrasonics - Wave equations

Uncontrolled terms:Bit synchronizations - Counterpropagating - Coupled equations - Delay lines - General models - Numerical solutions - Optical packet switching networks - Optimum designs - Pulse distortion - Pump beams  - Pump power - Signal pulse - Slow-light - Slow-light pulse - Small signals - Space-time evolutions - Stimulated Brillouin scattering (SBS) - Theoretical studies - Three-wave nonlinear interactions - Transient regimes  - Two regimes

Classification code:741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 753.1 Ultrasonic Waves - 741.1 Light/Optics - 812 Ceramics, Refractories and Glass - 819.4 Fiber Products - 921.2 Calculus - 817 Plastics and Other Polymers: Products and Applications - 721 Computer Circuits and Logic Elements - 703.1 Electric Networks - 711 Electromagnetic Waves - 713.4 Pulse Circuits - 618.2 Pumps - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 716.1 Information Theory and Signal Processing

DOI:10.1117/12.816339

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 116>

 

Accession number:20100212631108

Title:A novel snake model for X-ray image segmentation

Authors:Ouyang, Chengsu (1); Huang, Yongxuan (1); Yuan, Jun (2)

Author affiliation:(1) School of Electronics and Information Engineering, Xi'An Jiaotong University, Xi'an 710049, China; (2) Xi'An Xijing Optical Electrical Instrument co'Ltd, Xi'an, 710068, China

Corresponding author:Ouyang, C.(yfloy@yeah.net)

Source title:Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

Abbreviated source title:Proc. Int. Congr. Image Signal Process., CISP

Monograph title:Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

Issue date:2009

Publication year:2009

Article number:5301532

Language:English

ISBN-13:9781424441310

Document type:Conference article (CA)

Conference name:2009 2nd International Congress on Image and Signal Processing, CISP'09

Conference date:October 17, 2009 - October 19, 2009

Conference location:Tianjin, China

Conference code:78839

Sponsor:Tianjin University of Technology

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:In image segmentation and computer vision, Gradient vector flow (GVF) snake model is used widely . GVF snake has larger capture range and stronger convergence ability to boundary concavities than traditional snake. However the dots outside force field of the GVF field can't converge to the actual objects, and GVF snake becomes sensitive to its initial contour condition. Thus there are problems in convergence processing to boundaries of the irregular object with highly concavities in human body image. In this paper,a new snake model is proposed,which combines the GVF snake model and attractable snake model. A new selffeedback loop is proposed and a disturbance variable is presented for shrinking the dots outside the rang of force field . The proposed snake model is used for segmenting an X-ray finger image and can provide a satisfied result. In addition, comparisons between the proposed snake and GVF snake show that our model overwhelms GVF snake model. &copy;2009 IEEE.

Number of references:16

Main heading:Image segmentation

Controlled terms:Computer vision - Digital image storage - Signal processing

Uncontrolled terms:Disturbance variables - Force fields - Gradient vector flow - Human bodies - Initial contour - Irregular objects - Self-feedback - Snake model - X-ray image segmentation

Classification code:741.3 Optical Devices and Systems - 741.2 Vision - 741.1 Light/Optics - 731.6 Robot Applications - 723.5 Computer Applications - 723.2 Data Processing and Image Processing - 722.4 Digital Computers and Systems - 722.1 Data Storage, Equipment and Techniques - 716.1 Information Theory and Signal Processing

DOI:10.1109/CISP.2009.5301532

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 117>

 

Accession number:20092812177432

Title:Iterative channel estimator using superimposed training

Authors:Shi, Zhe (1)

Author affiliation:(1) State Key Lab. of Transient Optics and Photonics, Xi'an Inst. of Optics and Precision Mechanics, Chinese Academy of Sci., Xi'an 710119, China; (2) Graduate School, Chinese Academy of Sciences, Beijing 100039, China

Corresponding author:Shi, Z.(shizhe830412@163.com)

Source title:Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University

Abbreviated source title:Xi'an Dianzi Keji Daxue Xuebao

Volume:36

Issue:3

Issue date:June 2009

Publication year:2009

Pages:553-556

Language:Chinese

ISSN:10012400

CODEN:XDKXEP

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:Because of high bandwidth efficiency and low complexity, channel estimation based on superimposed training (ST) has received wide considerations in recent years. In this paper, a new iterative method for channel estimation is proposed based on the ST method. Using the improvement from symbol estimation after thresholding, received sequences and estimation of channel state information are used to do iterative computation in the receiver. Computer simulations show that the mean square error (MSE) and bit error rate (BER) can be reduced by an order of magnitude with the signal-to-noise ratio around 15 dB after 3-4 iterations.

Number of references:7

Main heading:Channel estimation

Controlled terms:Bit error rate - Block codes - Estimation - Mean square error - Multipath propagation - Settling tanks - Signal to noise ratio - Wireless telecommunication systems

Uncontrolled terms:First order statistics - High bandwidth - Iterative channel - Iterative computation - Low complexity - Multipath channels - Order of magnitude - Superimposed training - Symbol estimation - Thresholding

Classification code:921 Mathematics - 802.1 Chemical Plants and Equipment - 731.1 Control Systems - 723.1 Computer Programming - 718 Telephone Systems and Related Technologies; Line Communications - 922.2 Mathematical Statistics - 717 Optical Communication - 716 Telecommunication; Radar, Radio and Television - 711 Electromagnetic Waves - 452.2 Sewage Treatment - 445.1 Water Treatment Techniques - 716.1 Information Theory and Signal Processing

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 118>

 

Accession number:20093312256926

Title:A phase-stabilized carbon nanotube fiber laser frequency comb

Authors:Lim, Jinkang (1); Knabe, Kevin (1); Tillman, Karl A. (1); Neely, William (1); Wang, Yishan (1); Amezcua-Correa, Rodrigo (3); Couny, Fran&#231;ois (3); Light, Philip S. (3); Benabid, Fetah (3); Knight, Jonathan C. (3); Corwin, Kristan L. (1); Nicholson, Jeffrey W. (4); Washburn, Brian R. (1)

Author affiliation:(1) 116 Cardwell Hall, Department of Physics, Kansas State University, Manhattan, KS 66506, United States; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, China; (3) Centre for Photonics and Photonics Materials, Dept. of Physics, University of Bath, BA2, 7AY, United Kingdom; (4) OFS Labs., Somerset, NJ 08873, United States

Corresponding author:Lim, J.

Source title:Optics Express

Abbreviated source title:Opt. Express

Volume:17

Issue:16

Issue date:August 3, 2009

Publication year:2009

Pages:14115-14120

Language:English

E-ISSN:10944087

Document type:Journal article (JA)

Publisher:Optical Society of America, 2010 Massachusetts Ave, NW, Washington, DC, DC 20036-1023, United States

Abstract:A frequency comb generated by a 167 MHz repetition frequency erbium-doped fiber ring laser using a carbon nanotube saturable absorber is phase-stabilized for the first time. Measurements of the in-loop phase noise show an integrated phase error on the carrier envelope offset frequency of 0.35 radians. The carbon nanotube fiber laser comb is compared with a CW laser near 1533 nm stabilized to the &nu;<inf>1</inf> + &nu;<inf>3</inf> overtone transition in an acetylene-filled kagome photonic crystal fiber reference, while the CW laser is simultaneously compared to another frequency comb based on a Cr:Forsterite laser. These measurements demonstrate that the stability of a GPS-disciplined Rb clock is transferred to the comb, resulting in an upper limit on the locked comb's frequency instability of 1.2 &times; 10<sup>-11</sup> in 1 s, and a relative instability of &lt;3 &times; 10<sup>-12</sup> in 1 s. The carbon nanotube laser frequency comb offers much promise as a robust and inexpensive all-fiber frequency comb with potential for scaling to higher repetition frequencies. &copy; 2009 Optical Society of America.

Number of references:32

Main heading:Carbon fibers

Controlled terms:Acetylene - Carbon nanotubes - Chromium - Erbium - Fiber lasers - Fibers - Lighting - Olivine - Optical frequency conversion - Photonic crystal fibers  - Photonic crystals - Ring lasers - Rubidium

Uncontrolled terms:A-carbon - All fiber - Carbon nanotube fibers - Carrier envelope offset frequencies - Cr : Forsterite laser - CW-laser - Erbium doped fiber ring lasers - Frequency combs - Frequency instabilities - Laser combs  - Laser frequency - Overtone transition - Phase error - Rb clocks - Relative instability - Repetition frequency - Saturable absorbers - Upper limits

Classification code:761 Nanotechnology - 804 Chemical Products Generally - 804.1 Organic Compounds - 812 Ceramics, Refractories and Glass - 817 Plastics and Other Polymers: Products and Applications - 817.1 Polymer Products - 819.4 Fiber Products - 933.1 Crystalline Solids - 951 Materials Science - 744.4 Solid State Lasers - 482.2 Minerals - 543.1 Chromium and Alloys - 547.2 Rare Earth Metals - 549.1 Alkali Metals - 707 Illuminating Engineering - 741.1.1 Nonlinear Optics - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 744 Lasers

DOI:10.1364/OE.17.014115

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 119>

 

Accession number:20100912741044

Title:Analysis of wavefront correction experiment based on 19-channel piezoelectric deformable mirrors

Authors:Liu, Cong (1); Ma, Caiwen (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an, Shaanxi 710119, China; (2) Graduate University of Chinese Acad. of Sci., Beijing 100049, China

Corresponding author:Liu, C.(leobrows@163.com)

Source title:Zhongguo Jiguang/Chinese Journal of Lasers

Abbreviated source title:Zhongguo Jiguang

Volume:36

Issue:SUPPL. 2

Issue date:December 2009

Publication year:2009

Pages:62-66

Language:Chinese

ISSN:02587025

CODEN:ZHJIDO

Document type:Journal article (JA)

Publisher:Science Press, 18,Shuangqing Street,Haidian, Beijing, 100085, China

Abstract:Piezoelectric deformable mirrors (PDM) is a widely-used wavefront corrector in the adaptive optics which is to compensate for the wavefront aberration generated by the atmosphere turbulence in astronomical telescopes and laser communication systems. Analyzing the performance parameters of PDM, like fitting error, actuators' number and spatial arrangement, dynamic range, we designed an experimental adaptive optic system based on 19-channel PDM. This system uses Zernike modal approach to reconstruct the wavefront and real-time control PDM to compensate three wavefront aberrations: defocus, astigmatism and coma simulated in Matlab in a negative feedback closed loop. The experimental results show that the piezoelectric deformable mirrors have good correction capability for wavefront aberration in negative feedback closed-loop adaptive optic system.

Number of references:10

Main heading:Mirrors

Controlled terms:Aberrations - Atmospheric turbulence - Deformation - Feedback - Integrated optics - Laser pulses - MATLAB - Physical optics - Piezoelectricity - Real time control  - Telecommunication systems - Vision aids - Wavefronts

Uncontrolled terms:Adaptive optic systems - Astronomical telescopes - Atmosphere turbulence - Closed loops - Closed-loop adaptive optics - Defocus - Deformable mirrors - Dynamic range - Fitting error - Laser communication system  - Negative feedback - Performance parameters - Spatial arrangements - System use - Wavefront aberrations - Wavefront correction - Wavefront corrector - Zernike

Classification code:731.1 Control Systems - 732 Control Devices - 741 Light, Optics and Optical Devices - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 731 Automatic Control Principles and Applications - 744.1 Lasers, General - 921 Mathematics - 931.1 Mechanics - 941.3 Optical Instruments - 941.4 Optical Variables Measurements - 751.1 Acoustic Waves - 723.5 Computer Applications - 422 Strength of Building Materials; Test Equipment and Methods - 443.1 Atmospheric Properties - 461.5 Rehabilitation Engineering and Assistive Technology - 631.1 Fluid Flow, General - 701.1 Electricity: Basic Concepts and Phenomena - 421 Strength of Building Materials; Mechanical Properties - 708.1 Dielectric Materials - 716 Telecommunication; Radar, Radio and Television - 717 Optical Communication - 718 Telephone Systems and Related Technologies; Line Communications - 723.1.1 Computer Programming Languages - 711 Electromagnetic Waves

DOI:10.3788/CJL200936s2.0062

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 120>

 

Accession number:20114614507279

Title:Spectral anomalies of chirped Gaussian pulses from an annular aperture in the turbulent atmosphere

Authors:Yang, Yuanjie (1); Duan, Kailiang (2)

Author affiliation:(1) University of Electronic Science and Technology of China, Institute of Astronautics and Aeronautics, Chengdu 610054, China; (2) Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, State Key Laboratory of Transient Optics and Photonics, Xi'an 710068, China

Corresponding author:Yang, Y.(dr.yang2003@yahoo.com.cn)

Source title:Optical Engineering

Abbreviated source title:Opt Eng

Volume:48

Issue:5

Issue date:2009

Publication year:2009

Article number:058001

Language:English

ISSN:00913286

E-ISSN:15602303

CODEN:OPEGAR

Document type:Journal article (JA)

Publisher:SPIE, P.O. Box 10, Bellingham, WA 98227-0010, United States

Abstract:The anomalous spectral behaviors of a chirped Gaussian pulsed beam diffracted by an annular aperture in the turbulent atmosphere are studied. On the basis of the extended Huygens-Fresnel principle and by introducing a hard aperture function into a finite sum of complex Gaussian functions, the approximate analytical expression for the spectral intensity of chirped Gaussian pulses diffracted by an annular aperture in the turbulent atmosphere is derived. The corresponding expressions for a circular aperture, a circular black screen, and the unapertured case are given as special cases of the general results. The relative spectral shift of diffracted chirped Gaussian pulses in the turbulent atmosphere versus the different values of the radius of the annular aperture and the different values of the position parameter are also studied and illustrated with numerical calculations. The results of this work have potential applications in information encoding and transmission in a turbulent atmosphere. &copy; 2009 Society of Photo-Optical Instrumentation Engineers.

Number of references:25

Main heading:Atmospheric turbulence

Controlled terms:Gaussian distribution

Uncontrolled terms:Analytical expressions - Annular apertures - Chirped Gaussian pulse - Circular aperture - Complex Gaussian functions - Gaussians - Hard aperture function - Huygens-Fresnel principle - Information encoding - Numerical calculation  - Position parameters - Potential applications - Pulsed beams - Spectral anomalies - Spectral behaviors - Spectral intensity - Spectral shift - Turbulent atmosphere

Classification code:443.1 Atmospheric Properties - 922.1 Probability Theory

DOI:10.1117/1.3127199

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 121>

 

Accession number:20094712478946

Title:Guided modes in a four-layer slab waveguide with the LHM core

Authors:Zhang, Jing (1); He, Ying (1); Li, Chunfang (1); Zhang, Fanming (1)

Author affiliation:(1) Department of Physics, College of Science, Shanghai University, Shanghai 200444, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China

Corresponding author:He, Y.(heying@staff.shu.edu.cn)

Source title:Guangxue Xuebao/Acta Optica Sinica

Abbreviated source title:Guangxue Xuebao

Volume:29

Issue:10

Issue date:October 2009

Publication year:2009

Pages:2673-2680

Language:Chinese

ISSN:02532239

CODEN:GUXUDC

Document type:Journal article (JA)

Publisher:Chinese Optical Society, P.O. Box 80, Xi'an, 710068, China

Abstract:The guided modes are studied in a four-layer left-hand meterial (LHM) slab waveguide structure with a negative refractive material core and three traditional dielectric layer. The graphical method is applied to determine the TE guided modes. The LHM waveguide supports both oscillating guided modes and surface guided modes. The guided modes in the four layer LHM waveguide have some new properties compared to the three-layer waveguide. When the oscillating field exists both in the inner traditional dielectric layer and in the LHM layer, the fundamental mode appears and some high-order modes are absent. And when surface guided modes exist in the LHM layer with the oscillating field in the inner dielectric layer, mode double-degeneracy appears for the high-order modes. The four-layer LHM waveguide is equivalent to the asymmetric three-layer waveguide when the evanescent field exists in the inner dielectric layer. These novel properties are valuable for the fabrication of the optical waveguides in the future.

Number of references:23

Main heading:Waveguides

Controlled terms:Graphic methods - Guided electromagnetic wave propagation - Integrated optoelectronics - Optical materials - Optical waveguides - Optoelectronic devices - Refractive index - Three term control systems - Tokamak devices

Uncontrolled terms:Dielectric layer - Evanescent fields - Fundamental modes - Graphical method - Graphical methods - Guided modes - High order mode - Left-hand material (LHM) waveguide - Negative refractive materials - Oscillating fields  - Oscillating guided modes - Slab waveguides - Surface guided modes - Three-layer

Classification code:932.3 Plasma Physics - 902.1 Engineering Graphics - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 731.1 Control Systems - 723.5 Computer Applications - 717.2 Optical Communication Equipment - 714.3 Waveguides - 714.2 Semiconductor Devices and Integrated Circuits - 711.1 Electromagnetic Waves in Different Media - 621.2 Fusion Reactors

DOI:10.3788/AOS20092910.2673

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 122>

 

Accession number:20100312636395

Title:A new de-noising arithmetic in the output signal of FOG

Authors:Liu, Ying (1); Li, Yan (1); Xu, Jintao (2)

Author affiliation:(1) Faculty of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an Shaanxi 710048, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an Shaanxi 710119, China

Corresponding author:Liu, Y.(ly676@163.com)

Source title:Applied Mechanics and Materials

Abbreviated source title:Appl. Mech. Mater.

Volume:16-19

Monograph title:e-Engineering and Digital Enterprise Technology VII

Issue date:2009

Publication year:2009

Pages:273-277

Language:English

ISSN:16609336

E-ISSN:16627482

ISBN-10:0878492992

ISBN-13:9780878492992

Document type:Conference article (CA)

Conference name:7th International Conference on e-Engineering and Digital Enterprise Technology

Conference date:September 3, 2009 - September 5, 2009

Conference location:Shenyang, China

Conference code:79110

Sponsor:Chinese Mechanical Engineering Society; National Natural Science Foundation of China; Brunel University in UK; Northeastern University in China

Publisher:Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany

Abstract:To reduce the noise error existing in the output signal of fiber optic gyroscopes (FOGs) and increase the precision of the FOGs, this paper established a mathematical model of the FOGs output signal, analyzed the error characteristics of the FOGs output signal, put forward a new de-noising arithmetic based on the wavelet transform, soft and hard threshold compromise filtering, threshold values were determined by multi-dimensions recursion arithmetic. Through experiment, it has been already validated that the proposed approach had the competitive performances on visual quality, signal to noise ratio (SNR) and the standard variation, it is effective in eliminating the white noises existing in the output signal of the FOG.

Number of references:8

Main heading:Fog

Controlled terms:Gyroscopes - Mathematical models - Mathematical transformations - Optical materials - Signal processing - Signal to noise ratio - Wavelet transforms - White noise

Uncontrolled terms:De-noising - Error characteristics - Fiber optic gyroscopes - Noise errors - Output signal - Recursions - Standard variation - Threshold - Visual qualities

Classification code:943.1 Mechanical Instruments - 921.3 Mathematical Transformations - 921 Mathematics - 741.3 Optical Devices and Systems - 716.1 Information Theory and Signal Processing - 711 Electromagnetic Waves - 443.1 Atmospheric Properties

DOI:10.4028/www.scientific.net/AMM.16-19.273

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 123>

 

Accession number:20092312105250

Title:3D FDTD simulation of spatiotemporal shaping and filtering of terahertz pulses through metal slits with finite thickness

Authors:Liu, Hai-Liang (1); Zhang, Tong-Yi (2); Fan, Wen-Hui (2)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an, 710119, China; (2) Graduate School of Chinese Academy of Science, Beijing, 100039, China

Corresponding author:Liu, H.-L.(1h1002002student@sina.com)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7277

Monograph title:Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology

Issue date:2009

Publication year:2009

Article number:72770U

Language:English

ISSN:0277786X

CODEN:PSISDG

Document type:Conference article (CA)

Conference name:Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology

Conference date:November 24, 2008 - November 27, 2008

Conference location:Wuhan, China

Conference code:77174

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The characteristics of spatiotemporal shaping and filtering of terahertz (THz) pulses passing through metal slits with finite thickness have been investigated by employing the finite-difference time-domain (FDTD) method. It is shown that this diffraction-based quasi-optical technique has a good influence on shaping and filtering of TEM-polarized THz pulses for thick-slits, while no effect for thin-slits. Furthermore, the numerical simulation results can be employed in the relevant experiments. &copy; 2009 SPIE.

Number of references:9

Main heading:Finite difference time domain method

Controlled terms:Dendrites (metallography) - Method of moments

Uncontrolled terms:3D FDTD - FDTD - Finite thickness - Metal slits - Numerical simulation - Quasi-optical - Slit filter - Spatiotemporal shaping - TEM - Terahertz pulse  - THz pulse

Classification code:531.2 Metallography - 921 Mathematics - 933.1.2 Crystal Growth

DOI:10.1117/12.822575

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 124>

 

Accession number:20103113114430

Title:Biologically Inspired Tensor Features

Authors:Mu, Yang (1); Tao, Dacheng (1); Li, Xuelong (2); Murtagh, Fionn (3)

Author affiliation:(1) Nanyang Technological University, Singapore 639798, Singapore; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119 Shaanxi, China; (3) Department of Computer Science, Royal Holloway, University of London, Surrey TW20 0EX, United Kingdom

Corresponding author:Tao, D.(dctao@ntu.edu.sg)

Source title:Cognitive Computation

Abbreviated source title:Cognitive Comput.

Volume:1

Issue:4

Issue date:2009

Publication year:2009

Pages:327-341

Language:English

ISSN:18669956

E-ISSN:18669964

Document type:Journal article (JA)

Publisher:Springer New York, 233 Springer Street, New York, NY 10013-1578, United States

Abstract:According to the research results reported in the past decades, it is well acknowledged that face recognition is not a trivial task. With the development of electronic devices, we are gradually revealing the secret of object recognition in the primate's visual cortex. Therefore, it is time to reconsider face recognition by using biologically inspired features. In this paper, we represent face images by utilizing the C1 units, which correspond to complex cells in the visual cortex, and pool over S1 units by using a maximum operation to reserve only the maximum response of each local area of S1 units. The new representation is termed C1 Face. Because C1 Face is naturally a third-order tensor (or a three dimensional array), we propose three-way discriminative locality alignment (TWDLA), an extension of the discriminative locality alignment, which is a top-level discriminate manifold learning-based subspace learning algorithm. TWDLA has the following advantages: (1) it takes third-order tensors as input directly so the structure information can be well preserved; (2) it models the local geometry over every modality of the input tensors so the spatial relations of input tensors within a class can be preserved; (3) it maximizes the margin between a tensor and tensors from other classes over each modality so it performs well for recognition tasks and (4) it has no under sampling problem. Extensive experiments on YALE and FERET datasets show (1) the proposed C1Face representation can better represent face images than raw pixels and (2) TWDLA can duly preserve both the local geometry and the discriminative information over every modality for recognition. &copy; 2009 Springer Science+Business Media, LLC.

Number of references:45

Main heading:Face recognition

Controlled terms:Alignment - Learning algorithms - Object recognition - Tensors

Uncontrolled terms:Biologically inspired - Biologically inspired features - C1 units - Data sets - Electronic device - Face images - Local geometry - Manifold learning - Research results - Spatial relations  - Structure information - Subspace learning - Third-order tensors - Three dimensional arrays - Under-sampling - Visual cortexes

Classification code:751.1 Acoustic Waves - 741.1 Light/Optics - 723.5 Computer Applications - 921.1 Algebra - 723 Computer Software, Data Handling and Applications - 603.1 Machine Tools, General - 601.1 Mechanical Devices - 716 Telecommunication; Radar, Radio and Television

DOI:10.1007/s12559-009-9028-5

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 125>

 

Accession number:20094712477874

Title:Negative and positive lateral shifts: A result of beam reshaping caused by interference

Authors:Chen, Xi (1); Li, Chun-Fang (1)

Author affiliation:(1) Department of Physics, Shanghai University, 99 Shangda Road, 200444 Shanghai, China; (2) Departamento de Qu&#237;mica-F&#237;sica, UPV-EHU, Apartado 644, 48080 Bilbao, Spain; (3) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China

Corresponding author:Chen, X.(xchen@shu.edu.cn)

Source title:Journal of Optics A: Pure and Applied Optics

Abbreviated source title:J Opt A Pure Appl Opt

Volume:11

Issue:8

Issue date:2009

Publication year:2009

Article number:085004

Language:English

ISSN:14644258

E-ISSN:17413567

CODEN:JOAOF8

Document type:Journal article (JA)

Publisher:Institute of Physics Publishing, Temple Back, Bristol, BS1 6BE, United Kingdom

Abstract:The origin of negative and positive lateral shifts of the light beams in a dielectric slab configuration is investigated from the viewpoint of the interference between multiple light beams, due to the multiple reflections and transmissions inside the slab. It is shown that the whole reflected and transmitted beams with negative shifts can be obtained from the successively reflected and transmitted constituents, respectively, with positive displacements predicted from geometrical optics. When the slab's thickness is much smaller in comparison with the width of the beam waist, the reshaping reflected and transmitted beams retain the profile of the incident beam. The physical mechanism presented here could also be applicable in investigating other counterintuitive phenomena, such as the superluminal traversal time in quantum tunneling and dispersive media. &copy; 2009 IOP Publishing Ltd.

Number of references:37

Main heading:Light transmission

Controlled terms:Light

Uncontrolled terms:Beam waist - Dielectric slabs - Dispersive media - Incident beams - Interference - Lateral shift - Lateral shifts - Light beam - Multiple light beams - Multiple reflections  - Negative shift - Physical mechanism - Positive displacement - Quantum tunneling - Reshaping - Superluminal - Transmitted beams - Traversal time

Classification code:741.1 Light/Optics

DOI:10.1088/1464-4258/11/8/085004

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 126>

 

Accession number:20090811913579

Title:Competition between Raman- and Rayleigh-enhanced four-wave mixings in attosecond polarization beats

Authors:Gan, Chenli (1); Zhang, Yanpeng (1); Nie, Zhiqiang (1); Zhao, Yan (1); Lu, Keqing (3); Si, Jinhai (1); Xiao, Min (2)

Author affiliation:(1) Key Laboratory for Physical Electronics and Devices, Ministry of Education, Xi'An Jiaotong University, Xi'an 710049, China; (2) Department of Physics, University of Arkansas, Fayetteville, AR 72701, United States; (3) State Key Laboratory of Transient Optics and Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China

Corresponding author:Gan, C.

Source title:Physical Review A - Atomic, Molecular, and Optical Physics

Abbreviated source title:Phys Rev A

Volume:79

Issue:2

Issue date:February 2, 2009

Publication year:2009

Article number:023802

Language:English

ISSN:10502947

E-ISSN:10941622

CODEN:PLRAAN

Document type:Journal article (JA)

Publisher:American Physical Society, One Physics Ellipse, College Park, MD 20740-3844, United States

Abstract:Based on color-locking noisy field correlation, the subtle Markovian field correlation effects in three stochastic models have been investigated in studying the Raman- and Rayleigh-enhanced four-wave mixing (FWM). Homodyne and heterodyne detections of the Raman attosecond sum-frequency polarization beats (ASPB), the Rayleigh ASPB, and the coexisting Raman and Rayleigh ASPB have also been investigated, respectively. Raman- and Rayleigh-enhanced FWM processes strongly compete with each other in ASPB. The heterodyne detected signal of ASPB potentially offers rich dynamic information about the homogeneous broadening material phase of the third-order nonlinear susceptibility. &copy; 2009 The American Physical Society.

Number of references:38

Main heading:Four wave mixing

Controlled terms:Heterodyning - Polarization - Stochastic models

Uncontrolled terms:Attosecond - Field-correlation effects - Heterodyne detections - Homodyne - Homogeneous broadening - Markovian - Rich dynamics - Sum frequencies - Third-order nonlinear susceptibilities

Classification code:701.1 Electricity: Basic Concepts and Phenomena - 711.1 Electromagnetic Waves in Different Media - 713.3 Modulators, Demodulators, Limiters, Discriminators, Mixers - 716 Telecommunication; Radar, Radio and Television - 741.1 Light/Optics - 922.1 Probability Theory

DOI:10.1103/PhysRevA.79.023802

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 127>

 

Accession number:20100212631512

Title:A low complexity fast intra mode decision algorithm for H.264/AVC

Authors:Lei, Ji (1); Xiuqin, Su (1); Xiang, Li (1)

Author affiliation:(1) Key Laboratory of Ultrafast Photoelectric Diagnostics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences Xi'an, Shaanxi, 710119, China

Corresponding author:Xiuqin, S.(xqsu@opt.ac.cn)

Source title:Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

Abbreviated source title:Proc. Int. Congr. Image Signal Process., CISP

Monograph title:Proceedings of the 2009 2nd International Congress on Image and Signal Processing, CISP'09

Issue date:2009

Publication year:2009

Article number:5304048

Language:English

ISBN-13:9781424441310

Document type:Conference article (CA)

Conference name:2009 2nd International Congress on Image and Signal Processing, CISP'09

Conference date:October 17, 2009 - October 19, 2009

Conference location:Tianjin, China

Conference code:78839

Sponsor:Tianjin University of Technology

Publisher:IEEE Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:H.264/AVC intra prediction employs the rate distortion optimization (RDO) technique to get to the best encoding performance. But exhaustively searching all candidate modes dramatically increases the computational complexity for encoding. In order to reduce the computational complexity, in this work, we proposed a low complexity mode decision algorithm which is based on reducing the number of candidate modes for further RDO calculation. The proposed algorithm can decide the interpolation direction accurately by calculating the directional pixel-value differences (DPD) of target block and then do statistic with the obtained values to choose the most probable modes. Experimental results demonstrate that the proposed algorithm can achieve more than 70% time saving than H.264 referenced software with tiny degradation of encoding performance. &copy;2009 IEEE.

Number of references:10

Main heading:Algorithms

Controlled terms:Computational complexity - Encoding (symbols) - Image coding - Motion Picture Experts Group standards - Signal distortion - Signal processing

Uncontrolled terms:Encoding performance - Fast algorithms - H.264/AVC - Intra mode decision - Intra Prediction - Low complexity - Mode decision algorithms - Rate-distortion optimization - Time savings

Classification code:921 Mathematics - 742.1 Photography - 741 Light, Optics and Optical Devices - 723.2 Data Processing and Image Processing - 723 Computer Software, Data Handling and Applications - 721.1 Computer Theory, Includes Formal Logic, Automata Theory, Switching Theory, Programming Theory - 716.1 Information Theory and Signal Processing

DOI:10.1109/CISP.2009.5304048

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 128>

 

Accession number:20094812500423

Title:Nonlinear intersubband optical absorption of asymmetric semiconductor quantum wells pumped by terahertz and infrared fields

Authors:Zhu, Hai-Yan (1); Zhang, Tong-Yi (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 17 Xinxi Road, Xi'an 710119, China; (2) Graduate School of Chinese, Academy of Sciences, Beijing 100039, China

Corresponding author:Zhu, H.-Y.(haiyanvvv@opt.ac.cn)

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7385

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009 - Terahertz and High Energy Radiation Detection Technologies and Applications

Issue date:2009

Publication year:2009

Pages:73851Z

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476661

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:78571

Sponsor:Photoelectric Technology Professional Committee; Chinese Society of Astronautics

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:We investigate the conduction intersubband linear response of a n-type quantum well driven by one or two infrared optical fields with arbitrary strengths. The fields couple the third subband to the second energy subband and the ground subband, forming a A system. We investigate the dependences of the absorption spectrum on the pump field strengths. The results for the equal Rabi frequencies can be understood in terms of quantum coherence processes of the intersubband transitions, such as coherent population trapping, and electromagnetically induced transparency. The effects of different Rabi frequencies on the absorption spectrum due to fields are also discussed. &copy; 2009 SPIE.

Number of references:26

Main heading:Semiconductor quantum wells

Controlled terms:Absorption - Absorption spectroscopy - High energy physics - Light absorption - Quantum theory

Uncontrolled terms:Coherent population trapping - Electromagnetically induced transparency - Infrared field - Inter-subband - Intersubband transitions - Linear absorption - Linear response - Optical absorption - Optical field - Pump fields  - Quantum coherence - Quantum well - Rabi frequency - Steady state - Sub-bands - Tera Hertz

Classification code:941.4 Optical Variables Measurements - 941.3 Optical Instruments - 932.1 High Energy Physics - 931.4 Quantum Theory; Quantum Mechanics - 931.2 Physical Properties of Gases, Liquids and Solids - 802.3 Chemical Operations - 801 Chemistry - 741.1 Light/Optics - 741 Light, Optics and Optical Devices - 714.2 Semiconductor Devices and Integrated Circuits - 712.1 Semiconducting Materials

DOI:10.1117/12.835726

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 129>

 

Accession number:20094812510142

Title:The optical monitor system of anti-phobic raid underwater

Authors:Zheng, Chengdong (1); Weng, Yan-Sheng (1); Liu, Xi-Zhan (1)

Author affiliation:(1) Xi'An Institute of Optics and Precision Mechanics of CAS, Xian 710169, China

Corresponding author:Zheng, C.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7382

Monograph title:International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging

Issue date:2009

Publication year:2009

Article number:73824M

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819476630

Document type:Conference article (CA)

Conference name:International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging

Conference date:June 17, 2009 - June 19, 2009

Conference location:Beijing, China

Conference code:78038

Sponsor:Chinese Society of Astronautics,; Photoelectric Technology Professional Committee

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The underwater security system, used in the Qingdao sailboat game of 2008 Olympic Games, combined multiple underwater cameras with sonar detectors, forms an underwater barrier, which can observe the movement of suspicious objects and get the underwater video images continuously and instantly. The lighting system can provide sufficient illumination matched with target to reach the best imaging result. The whole system with the function of centralized control, depth measurement, leakage alarm and image processing, is the original equipment in domestic underwater antiterrorism optical research area. &copy; 2009 SPIE.

Number of references:6

Main heading:Underwater imaging

Controlled terms:Cameras - Detectors - Image processing - Industrial research - Optical data processing - Sailing vessels - Targets - Underwater acoustics - Underwater equipment

Uncontrolled terms:Centralized control - Depth measurements - Doubtful object - Leakage alarms - Lighting systems - Olympic games - Optical monitors - Qingdao - Research areas - Suspicious objects  - Target identification - Underwater barriers - Video image - Whole systems

Classification code:914 Safety Engineering - 912.1 Industrial Engineering - 901.3 Engineering Research - 751.1 Acoustic Waves - 746 Imaging Techniques - 932.1.1 Particle Accelerators - 742.2 Photographic Equipment - 741 Light, Optics and Optical Devices - 723.2 Data Processing and Image Processing - 674.1 Small Marine Craft - 472 Ocean Engineering - 741.3 Optical Devices and Systems

DOI:10.1117/12.836632

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 130>

 

Accession number:20094212374587

Title:Technology trend and challenges in high power semiconductor laser packaging

Authors:Liu, Xingsheng (1); Zhao, Wei (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China

Corresponding author:Liu, X.

Source title:Proceedings - Electronic Components and Technology Conference

Abbreviated source title:Proc Electron Compon Technol Conf

Monograph title:2009 Proceedings 59th Electronic Components and Technology Conference, ECTC 2009

Issue date:2009

Publication year:2009

Pages:2106-2113

Article number:5074316

Language:English

ISSN:05695503

CODEN:PECCA7

ISBN-13:9781424444762

Document type:Conference article (CA)

Conference name:2009 59th Electronic Components and Technology Conference, ECTC 2009

Conference date:May 26, 2009 - May 29, 2009

Conference location:San Diego, CA, United states

Conference code:77520

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:High power semiconductor lasers have found increased applications in pumping of solid state laser systems for industrial, military and medical applications as well as direct material processing applications such as welding, cutting, and surface treatment. Driven by low cost, longer lifetime and new applications, the requirements of high power semiconductor lasers have been changed and the demand for new products has been accelerated in recent years. As a result, the packaging technologies of high power semiconductor lasers have been highly developed and have become more sophisticated. In this paper, we review and discuss the technology development trend of high power semiconductor lasers, including single emitters, bars, horizontal bar arrays and vertical bar stacks. However, the packaging technology is still one of the bottlenecks of the advancement of high power semiconductor lasers. We will discuss the challenges and issues in high power laser packaging and some approaches and strategies in addressing the challenges and issues will bepresented. &copy; 2009 IEEE.

Number of references:20

Main heading:Semiconductor lasers

Controlled terms:Chip scale packages - Cutting - High power lasers - Laser beam welding - Lasers - Medical applications - Military applications - Power electronics - Pumping (laser) - Solid state lasers  - Surface treatment - Technological forecasting - Technology

Uncontrolled terms:High power semiconductor laser - Low costs - Material processing applications - New applications - New product - Packaging technologies - Single emitter - Solid-state laser systems - Technology development - Technology trends

Classification code:715.2 Industrial Electronic Equipment - 744.1 Lasers, General - 744.4 Solid State Lasers - 744.4.1 Semiconductor Lasers - 744.9 Laser Applications - 802 Chemical Apparatus and Plants; Unit Operations; Unit Processes - 901 Engineering Profession - 901.4 Impact of Technology on Society - 931 Classical Physics; Quantum Theory; Relativity - 714.2 Semiconductor Devices and Integrated Circuits - 404.1 Military Engineering - 461.1 Biomedical Engineering - 538.2.1 Welding Processes - 539 Metals Corrosion and Protection; Metal Plating - 604.1 Metal Cutting - 604.2 Machining Operations - 606.2 Abrasive Devices and Processes - 712.1 Semiconducting Materials - 713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers

DOI:10.1109/ECTC.2009.5074316

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 131>

 

Accession number:20095112550135

Title:The small infrared target detection in complicated background based on adaptive morphological filter

Authors:Li, Zhe (1); Su, Xiuqin (1); Hao, Wei (1)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an 710119; (2) Graduate College of Chinese Academy of Science, Beijing 100039, China

Corresponding author:Li, Z.

Source title:Proceedings of SPIE - The International Society for Optical Engineering

Abbreviated source title:Proc SPIE Int Soc Opt Eng

Volume:7495

Monograph title:MIPPR 2009 - Automatic Target Recognition and Image Analysis

Issue date:2009

Publication year:2009

Article number:74950I

Language:English

ISSN:0277786X

CODEN:PSISDG

ISBN-13:9780819478061

Document type:Conference article (CA)

Conference name:MIPPR 2009 - Automatic Target Recognition and Image Analysis: 6th International Symposium on Multispectral Image Processing and Pattern Recognition

Conference date:October 30, 2009 - November 1, 2009

Conference location:Yichang, China

Conference code:78791

Sponsor:Natl. Lab. Multi-spectral Inf. Process. Technol.; Huazhong University of Science and Technology; National Natural Science Foundation of China; China Three Gorges University

Publisher:SPIE, P.O. Box 10, Bellingham WA, WA 98227-0010, United States

Abstract:The detection of small infrared target has always been a crucial but difficult issue in infrared target detection. An effective method using adaptive Top-Hat operator in morphology is proposed to detect small infrared target in complicated background. Firstly, adaptive Top-Hat operator is employed to suppress large areas of interference in complicated background. However, the gray of target is attenuated in the image after Top-Hat operation, which is disadvantageous to segment target area. Therefore, on the condition that small infrared target is not easy to be detected accurately, the image processed by morphological filtering is transformed by nonlinear gray stretching in order to increase the gray of small target. The result of transformation proves that this method not only enhances the gray of small target but also restrains the interference. In this way, target region can be segmented effectively. The effectiveness and accuracy of this detecting method is verified by the results of experiments conducted by the author. &copy; 2009 Copyright SPIE - The International Society for Optical Engineering.

Number of references:5

Main heading:Targets

Controlled terms:Automatic target recognition - Image analysis - Imaging systems - Target drones

Uncontrolled terms:Detecting methods - Infrared target - Infrared target detection - Morphological filtering - Morphological filters - Small targets - Target detection - Target regions - Top-hat operator

Classification code:746 Imaging Techniques - 741 Light, Optics and Optical Devices - 723.5 Computer Applications - 932.1.1 Particle Accelerators - 723.2 Data Processing and Image Processing - 652.1.2 Military Aircraft - 404.1 Military Engineering - 716 Telecommunication; Radar, Radio and Television

DOI:10.1117/12.828933

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 132>

 

Accession number:20094212374381

Title:Study of the mechanism of "Smile" in high power diode laser arrays and strategies in improving near-field linearity

Authors:Jingwei, Wang (1); Zhenbang, Yuan (3); Lijun, Kang (2); Kai, Yang (2); Yanxin, Zhang (1); Xingsheng, Liu (1)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, No. 17 Xinxi Road, New Industrial Park, Xi'an, Shaanxi, 710119, China; (2) Xi'an Focuslight Technologies Co., LTD, No. 60 Xibu Road, New Industrial Park, Xi'an, Shaanxi, 710119, China; (3) School of Chemical Engineering and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300072, China

Corresponding author:Jingwei, W.(wjw@opt.ac.cn)

Source title:Proceedings - Electronic Components and Technology Conference

Abbreviated source title:Proc Electron Compon Technol Conf

Monograph title:2009 Proceedings 59th Electronic Components and Technology Conference, ECTC 2009

Issue date:2009

Publication year:2009

Pages:837-842

Article number:5074109

Language:English

ISSN:05695503

CODEN:PECCA7

ISBN-13:9781424444762

Document type:Conference article (CA)

Conference name:2009 59th Electronic Components and Technology Conference, ECTC 2009

Conference date:May 26, 2009 - May 29, 2009

Conference location:San Diego, CA, United states

Conference code:77520

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:High power diode lasers have found increased applications in pumping of solid state or fiber laser systems for industrial, military and medical applications as well as direct material processing applications. The non-linearity of the near-field of emitters (or the so called "smile" effect) in a laser diode array poses significant challenges in optical coupling and beam shaping and has become one of the major roadblocks in broader applications of laser arrays. Increasing the near-field linearity of a pumping laser diode array enables the laser system manufacturer to improve the laser system compactness, optical coupling efficiency, power, and beam quality while at the same time reducing manufacture cost in the laser system. Therefore, the near-field linearity of a laser bar is one of the key specifications of laser array products and improving the near field performance is especially important in order to increase production yield, reduce cost and gain competitiveness. In this paper, we will study the mechanism of "smile" in high power diode laser arrays and discuss the strategies and ways to achieve low "smile". &copy; 2009 IEEE.

Number of references:8

Main heading:Pumping (laser)

Controlled terms:Competition - Cost reduction - Diodes - Fiber lasers - Laser beam welding - Linearization - Medical applications - Military applications - Pumps

Uncontrolled terms:Beam-shaping - High power diode laser - High-power diode laser arrays - Laser arrays - Laser bar - Laser diode arrays - Laser systems - Material processing applications - Near fields - Near-field  - Non-Linearity - Optical coupling efficiency - Optical couplings - Production yield

Classification code:921 Mathematics - 741.1.2 Fiber Optics - 744.1 Lasers, General - 744.4 Solid State Lasers - 744.9 Laser Applications - 911.2 Industrial Economics - 912.2 Management - 731.1 Control Systems - 714.1 Electron Tubes - 618.2 Pumps - 538.2.1 Welding Processes - 461.1 Biomedical Engineering - 404.1 Military Engineering - 714.2 Semiconductor Devices and Integrated Circuits

DOI:10.1109/ECTC.2009.5074109

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

<RECORD 133>

 

Accession number:20094212374380

Title:Study of steady and transient thermal behavior of high power semiconductor lasers

Authors:Yuan, Zhenbang (1); Wang, Jingwei (2); Wu, Di (3); Chen, Xu (1); Liu, Xingsheng (2)

Author affiliation:(1) School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (2) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China; (3) Xi'an Focuslight Technologies Co., Ltd., Xi'an 710119, China

Corresponding author:Yuan, Z.(bj196@163.com)

Source title:Proceedings - Electronic Components and Technology Conference

Abbreviated source title:Proc Electron Compon Technol Conf

Monograph title:2009 Proceedings 59th Electronic Components and Technology Conference, ECTC 2009

Issue date:2009

Publication year:2009

Pages:831-836

Article number:5074108

Language:English

ISSN:05695503

CODEN:PECCA7

ISBN-13:9781424444762

Document type:Conference article (CA)

Conference name:2009 59th Electronic Components and Technology Conference, ECTC 2009

Conference date:May 26, 2009 - May 29, 2009

Conference location:San Diego, CA, United states

Conference code:77520

Publisher:Institute of Electrical and Electronics Engineers Inc., 445 Hoes Lane / P.O. Box 1331, Piscataway, NJ 08855-1331, United States

Abstract:High power semiconductor lasers have found increasing applications in many areas. The junction temperature rise may not only affect output power, slope efficiency, threshold current and lifetime, but also cause spectral broadening and wavelength shift, which makes thermal management one of the major obstacles of pump laser development. Therefore, developing optimized thermal design solution becomes especially important and critical. By means of numerical simulation method, the steady and transient thermal behavior of a single-bar CS-packaged 60W 808nm laser in continuouswave state has been investigated in this work. Thermal resistance and its compositions have been quantitatively analyzed. Guided by the numerical simulation and analytical results, a series of high power semiconductor lasers with good performances have been produced. &copy; 2009 IEEE.

Number of references:5

Main heading:Semiconductor lasers

Controlled terms:Computer simulation - High power lasers - Lasers - Power electronics - Pumping (laser) - Systems engineering

Uncontrolled terms:Analytical results - Continuous-wave state - High power semiconductor laser - Junction temperatures - Numerical simulation - Numerical simulation method - Output power - Pump laser - Slope efficiencies - Spectral broadening  - Steady and transient - Thermal behaviors - Thermal designs - Thermal management - Thermal resistance - Threshold currents - Wavelength shift

Classification code:961 Systems Science - 912 Industrial Engineering and Management - 744.4.1 Semiconductor Lasers - 744.1 Lasers, General - 723.5 Computer Applications - 715.2 Industrial Electronic Equipment - 714.2 Semiconductor Devices and Integrated Circuits - 713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 712.1 Semiconducting Materials

DOI:10.1109/ECTC.2009.5074108

Database:Compendex

Compilation and indexing terms, Copyright 2014 Elsevier Inc.

 

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Accession number:20090511880361

Title:Characterization of photoconductive semiconductor switches under nonlinear mode condition

Authors:Ruan, Chi (1); Zhao, Wei (1); Zhu, Shao-Lan (1); Liu, Hong-Jun (1); Yang, Hong-Chun (2); Ruan, Cheng-Li (2)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shaanxi 710119, China; (2) University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, China

Corresponding author:Ruan, C.(ruanchi@opt.ac.cn)

Source title:Microwave and Optical Technology Letters

Abbreviated source title:Microwave Opt Technol Lett

Volume:51

Issue:1

Issue date:January 2009

Publication year:2009

Pages:56-59

Language:English

ISSN:08952477

CODEN:MOTLEO

Document type:Journal article (JA)