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2017年46卷6期32篇论文

<RECORD 1>

Accession number:20173104014343

Title:Analysis of Capillary Electrophoresis Noise Characteristics

Authors:Chen, Gong (1, 2); Zhu, Xi-Fang (1); Dou, Xiao-Ming (2); Liu, Chen-Chen (2); Xu, Qing-Quan (1); Yamaguchi, Yoshinori (2); Ni, Yi (2)

Author affiliation:(1) School of Electrical and Photoelectronic Engineering, Changzhou Institute of Technology, Changzhou; Jiangsu; 213022, China; (2) School of Science, East China University of Science and Technology, Shanghai; 200237, China

Corresponding author:Zhu, Xi-Fang(zhuxf@czu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0612004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to optimize the fluorescence detection capillary electrophoresis system and improve the detection sensitivity, the signal noise characters were studied when separating 100~1000 base pair deoxyribonucleic acid ladder under direct current electric field in hydroxyethyl cellulose solutions. The dependence of signal noise on separation electric field intensity, polymer concentration, hydroxyethyl cellulose molecular weight, the effective length and the capillary shape were investigated. Experiment result shows that optimum parameters can be obtained under best signal noise ratio, which are the separation electric field strength of 500~600 V/cm, hydroxyethyl cellulose concentration of 0.6%~0.7%, hydroxyethyl cellulose molecular weight of 250, round inner diameter of 50 &mu;m and effective capillary length of 8 cm. &copy; 2017, Science Press. All right reserved.

Number of references:14

Main heading:Cellulose

Controlled terms:Capillary electrophoresis - DNA - Electric fields - Fluorescence - Molecular weight - Organic acids - Separation - Signal noise measurement

Uncontrolled terms:Direct current electric fields - Electric field intensities - Electric field strength - Fluorescence detection - Hydroxyethyl cellulose - Noise characteristic - Polymer concentrations - Sensitivity

Classification code:461.2  Biological Materials and Tissue Engineering - 701.1  Electricity: Basic Concepts and Phenomena - 741.1  Light/Optics - 802.3  Chemical Operations - 804.1  Organic Compounds - 811.3  Cellulose, Lignin and Derivatives - 931.3  Atomic and Molecular Physics

Numerical data indexing:Electric_Field_Strength 5.00e+04V/m to 6.00e+04V/m, Size 5.00e-05m, Size 8.00e-02m

DOI:10.3788/gzxb20174606.0612004

Funding Details: Number; Acronym; Sponsor: 21305089; NSFC; National Natural Science Foundation of China - Number; Sponsor: BK20130245; Natural Science Foundation of Jiangsu Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 2>

Accession number:20173104014367

Title:Design and Analysis of an Optical Zoom System Using Electrowetting-based Triple Liquid Lens

Authors:Zhao, Rui (1); Ma, Jian-Quan (1); Dang, Zhi-Yong (1); Kong, Mei-Mei (1); Liang, Zhong-Cheng (1)

Author affiliation:(1) Research Center of Optofluidic Technology, College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing; 210023, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0622005

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In this paper, a three-group inner-focus zoom system using dielectrowetting-based triple liquid lens and conventional fixed lens is proposed. When the first and the third components are fixed, the focal length of the system is changed by moving the intermediate liquid lens group. The self-zooming property of the liquid lens is realized to maintain the image plane. The initial structural parameters of the system is deduced by the optical power Gauss brackets method. The optical system is designed and optimized by Zemax software, and then the image quality of the system is analyzed. Results show that the system can achieve continuous zoom in the range from 2.7 mm to 20.3 mm; the total length of the system is decreased to 22 mm; the zoom ratio reaches 8 and MTF value is more than 0.4 at 180 lp/mm. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Lenses

Controlled terms:Image quality - Liquids - Optical design - Optical systems - Wetting

Uncontrolled terms:Electro wetting - Image quality assessment - Liquid lens - Zemax - Zoom systems

Classification code:741.1  Light/Optics - 741.3  Optical Devices and Systems

DOI:10.3788/gzxb20174606.0622005

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 3>

Accession number:20173104014357

Title:Fast Infrared and Dim Target Detection Algorithm Based on Multi-feature

Authors:Yi, Xiang (1); Wang, Bing-Jian (1)

Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China

Corresponding author:Wang, Bing-Jian(bjwang@mail.xidian.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0610002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to detect dim infrared targets from a mass of high resolution images in wide field of view system rapidly and accurately, a novel target detection method based on a phased strategy for research and multi-feature fusion is proposed in this paper. First of all, a saliency detection algorithm based on frequency-domain is carried out to extract candidate region which may contain targets. Then, invariant corner detection algorithm is adopted in candidate region to determine the presence of suspicious targets. Finally, the real targets can be confirmed by time-space coherence in multi frames. The experiment proves that the proposed method can detect dim infrared targets with small calculating amount, high detection probability and low false alarm rate. It is suitable for Infrared Search and Track system in practical engineering. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Feature extraction

Controlled terms:Edge detection - Frequency domain analysis - Image processing - Signal detection - Target tracking

Uncontrolled terms:Corner detection - Infrared night vision technique - Multi features - Saliency detection - Small target detection

Classification code:716.1  Information Theory and Signal Processing - 921.3  Mathematical Transformations

DOI:10.3788/gzxb20174606.0610002

Funding Details: Number; Acronym; Sponsor: 61107007; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61265006; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61401343; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 4>

Accession number:20173104014369

Title:Analysis of Dynamic Characteristic for Solar Arrays in Series and GMPPT Control

Authors:Yue, Quan-Ming (1); Zhao, Jian (2); Guo, Li (2)

Author affiliation:(1) State Grid Zhejiang Electric Power Company, Hangzhou; 310007, China; (2) Key Laboratory of Smart Grid of Ministry of Education, College of Electrical Engineering and Automation, Tianjin University, Tianjin; 300072, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0604001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on circuit analysis, this paper shows that the number of peak points can be determined by short-circuit currents and maximum-power point currents of all the arrays in series. The principle is established based on which the number of the peak points is to be determined. Furthermore, based on the dynamic characteristic of solar array, this paper establishes the rule for determination of the relative position of the global maximum power point. In order to track the global maximum power point within an appropriate period, a reliable technique and the corresponding computer algorithm are developed for global maximum power point tracking control. It exploits a definable nonlinear relation is found between variable environmental parameters and the output current of solar arrays at every maximum power point, obtained based on the dynamic performance corresponding to partial shading conditon. &copy; 2017, Science Press. All right reserved.

Number of references:19

Main heading:Solar cell arrays

Controlled terms:Electric network analysis - Global optimization - Maximum power point trackers - Photovoltaic cells - Solar cells - Solar power generation

Uncontrolled terms:Global maximum power point tracking - Optimal initial value - Partial shading - Photovoltaic systems - Sufficient and necessary condition

Classification code:615.2  Solar Power - 702.3  Solar Cells - 703.1.1  Electric Network Analysis - 704.2  Electric Equipment - 921.5  Optimization Techniques

DOI:10.3788/gzxb20174606.0604001

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 5>

Accession number:20173104014370

Title:Thickness Optimization and Photoelectric Performance Test of UV Sensitized Film of CMOS Sensor

Authors:Liu, Qiong (1); Ma, Shou-Bao (1); Qian, Xiao-Chen (1); Ruan, Jun (1); Lu, Zhong-Rong (1); Tao, Chun-Xian (1)

Author affiliation:(1) Shanghai Key Laboratory of Modern Optical System, School of Optical~Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai; 200093, China

Corresponding author:Tao, Chun-Xian(tao@usst.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0604002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The Lumogen as a low-cost organic material is deposited on the surface of the CMOS imaging sensor using a vacuum thermal evaporation system. The constant dark current noise of the CMOS is shown that no damage to the CMOS is caused in the process of the depositing film. The photo response nonuniformity is increased while the dynamic range is decreased with the argument of the Lumogen-film thickness. Furthermore, the quantum efficiency is increased firstly and then decreased and reach to the optimum 10% when the thickness of the Lumogen film is 389 nm. Meanwhile, the photo response nonuniformity and dynamic range are in a relatively good condition. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:CMOS integrated circuits

Controlled terms:Efficiency - Metals - MOS devices - Oxide semiconductors - Quantum efficiency - Thermal evaporation - Thin films - Vacuum evaporation

Uncontrolled terms:Complementary metal oxide semiconductors - Dynamic range - Sensor technologies - Thin-film technology - Ultraviolet sensitizing

Classification code:633.1  Vacuum Applications - 714.2  Semiconductor Devices and Integrated Circuits - 913.1  Production Engineering - 931.4  Quantum Theory; Quantum Mechanics

Numerical data indexing:Percentage 1.00e+01%, Size 3.89e-07m

DOI:10.3788/gzxb20174606.0604002

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 6>

Accession number:20173104014353

Title:Research on Electron Energy Loss Spectroscopy of Typical Metal Nanostructures

Authors:Wang, Li-Hua (1); Li, Xiao-Fei (1); Huang, Zhi-Xiang (1); Wu, Xian-Liang (1)

Author affiliation:(1) Key Laboratory of intelligent Computing &amp; Signal Processing, Anhui University, Hefei; 230039, China

Corresponding author:Huang, Zhi-Xiang(zxhuang@ahu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616006

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The formula of electron energy loss spectroscopy of metal nanostructures was deduced by Green function. Several typical structural systems were simulated by finite difference time-domain method. The regulating effects of the distance between the moving charge and the structure, and the liquid crystal environment on the electron energy loss spectrum were numerical simulated. The simulation results show that the electron energy loss spectral peak decreases when the distance between electron and nanostructure is increased. When the liquid crystal material or isotropic substrate material is added, the peak value of electron energy loss spectrum is redshift, but with the tilt angle of the optical axis changes, the modulation effect is limited. The surface plasmon resonance on metal nanoparticles can be studied by calculating the electron energy loss spectrum, which provides a basis theoretical for the design of highly complex plasmonic nanostructures. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Electron energy loss spectroscopy

Controlled terms:Crystal structure - Dissociation - Electron emission - Electron energy levels - Electron scattering - Electrons - Energy dissipation - Finite difference time domain method - Green's function - Liquid crystals  - Liquids - Metal nanoparticles - Nanostructures - Plasmons - Surface plasmon resonance - Time domain analysis

Uncontrolled terms:Electron energy loss - Electron energy loss spectrum - Isotropic substrates - Liquid crystal materials - Metal nanostructure - Numerical simulated - Plasmonic nanostructures - Structural systems

Classification code:525.4  Energy Losses (industrial and residential) - 761  Nanotechnology - 802.2  Chemical Reactions - 921  Mathematics - 931.3  Atomic and Molecular Physics - 933.1.1  Crystal Lattice

DOI:10.3788/gzxb20174606.0616006

Funding Details: Number; Acronym; Sponsor: 51277001; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61471001; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 7>

Accession number:20173104014348

Title:Preparation of PbSe-Quantum-Dot-Doped-Silicate Glass Fiber and the Fiber Photoluminescence Spectrum

Authors:Cheng, Cheng (1, 2); Xi, Zi-Yang (1); Yao, Jian-Hua (2)

Author affiliation:(1) Institute of Intelligent Optoelectronic Technology, Zhejiang University of Technology, Hangzhou; 310023, China; (2) Zhejiang Provincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou; 310014, China

Corresponding author:Xi, Zi-Yang(sfwruicosta@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:PbSe quantum dot doped bare-optical fibers are prepared in laboratory by drawing sodium-aluminum-borosilicate-silicate-glass fusant and annealing heat treatment. The fibers are in the diameter of 80~130 &mu;m. Transmission-electron microscope measurement shows that the prepared PbSe quantum dot in the fibers are in the diameter of 4.2~5.5 nm and with the doped volume ratio of 1%. The flexibility of Pbse quantum dot doped fibers is tested initially. The photoluminescence spectra of fibers are measured upon 980-nm pump by a fluorescence spectrometer. There is evidence to show that the available annealing condition of PbSe quantum dot fibers is different from PbSe quantum dot doped-bulk glass. When the annealing temperature is within 500~600&#8451; and the annealing time spans 5~10 h, the PbSe quantum dot fiber shows strongest photoluminescence emission, peaking wavelength ranging 1300~1450 nm and full width at half maximum coming to 200~330 nm. The optimum annealing temperature and time are 600&#8451; and 7.5 h, respectively. The PbSe quantum dot fibers obtained in this paper can be used to format PbSe-quantum-dot-doped-fiber gain devices based on glass (such as fiber amplifiers and fiber lasers) in the future. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Fiber amplifiers

Controlled terms:Annealing - Borosilicate glass - Fiber lasers - Fibers - Glass - Heat treatment - Nanocrystals - Optical fibers - Photoluminescence - Photoluminescence spectroscopy  - Quantum dot lasers - Semiconducting lead compounds - Semiconductor quantum dots - Silicates - Transmission electron microscopy

Uncontrolled terms:Annealing condition - Annealing temperatures - Annealing time - Fluorescence spectrometers - Pbse quantum dots - Photoluminescence emission - Photoluminescence spectrum - Silicate glass fibers

Classification code:537.1  Heat Treatment Processes - 712.1.2  Compound Semiconducting Materials - 714.2  Semiconductor Devices and Integrated Circuits - 741  Light, Optics and Optical Devices - 744.4  Solid State Lasers - 744.4.1  Semiconductor Lasers - 761  Nanotechnology - 812.3  Glass

Numerical data indexing:Percentage 1.00e+00%, Size 1.30e-06m to 1.45e-06m, Size 2.00e-07m to 3.30e-07m, Size 4.20e-09m to 5.50e-09m, Size 8.00e-05m to 1.30e-04m, Size 9.80e-07m, Time 1.80e+04s to 3.60e+04s, Time 2.70e+04s

DOI:10.3788/gzxb20174606.0616001

Funding Details: Number; Acronym; Sponsor: 61274124; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61474100; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 8>

Accession number:20173104014344

Title:Laser Ranging of Frequency Scanning Interferometry System Based on Double-sideband Modulation

Authors:Chen, Xi-Lun (1); Wang, Xiang-Chuan (1); Pan, Shi-Long (1)

Author affiliation:(1) Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China

Corresponding author:Pan, Shi-Long(pans@ieee.org)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0612005

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A laser ranging of dual-sweep frequency scanning interferometry system based on double-sideband modulation was demonstrated. The electro-optic double-sideband modulation was used to create dual swept signals with opposite scanning directions. For each receiving terminal, the beat frequency signal related to relative distance was obtained. By multiplying both beat signals, measurement errors caused by disturbances in the optical path could be greatly reduced. The system was simulated in Optisystem. The simulation results indicate that the variations in the optical path length are eliminated efficiently. In addition, an experimental structure was proposed with vibrations in the optical path length. The experimental results show that the vibrations are suppressed for over 14 dB, which indicates that the precision can be improved effectively. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Modulation

Controlled terms:Geometrical optics - Interferometry - Laser applications - Scanning

Uncontrolled terms:Beat frequency - Disturbances rejection - Double sideband modulation - Frequency scanning interferometry - Laser ranging - Optical path lengths - Relative distances - Sweep frequencies

Classification code:741.1  Light/Optics - 744.9  Laser Applications - 941.4  Optical Variables Measurements

Numerical data indexing:Decibel 1.40e+01dB

DOI:10.3788/gzxb20174606.0612005

Funding Details: Number; Acronym; Sponsor: 61422108; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61527820; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61605077; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 9>

Accession number:20173104014347

Title:Spectral Calibration of Wide Band Solar Irradiance Spectrometer

Authors:Huang, Xiong-Hao (1, 2); Li, Xin (1); Liu, En-Chao (1); Zheng, Xiao-Bing (1); Zhai, Wen-Chao (1)

Author affiliation:(1) Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei; 230031, China; (2) University of Science and Technology of China, Hefei; 230026, China

Corresponding author:Zheng, Xiao-Bing(xbzheng@aiofm.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0601003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Wide band solar irradiance spectrometer that the wavelength coverage is from 400 nm to 2500 nm uses f&egrave;ry prism to disperse composite light, with linear array CCD controlling scan of spectrum. To achieve the high-precision spectral calibration of the instrument, asingle-wavelength laser and an OPO laser are used as light sources in the laboratory. Through thespectral scanning, the correspondence between the calibration wavelength and the CCD pixel is obtained. According to the prism and optical design parameters, the spectral calibration equations that achieve full-band spectral calibration are derived. It is verified that the spectral calibration uncertainty is better than 0.5 nm by comparing with other characteristic wavelengths. Comparing measured results with the simulation of atmospheric radiation transmission software that is named as modtran4, the measured atmospheric absorption peaks are in agreement with the simulation results. The results of calibration in the infrared wavelength region are compared with the traditional polynomial fitting method, which shows that the calibration results aresuperior to the traditional polynomial fitting method. It is proved that the calibration method is correct and the instrument design is rational. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Calibration

Controlled terms:Atmospheric radiation - Computer software - Light sources - Optical design - Prisms - Solar radiation - Spectrometers

Uncontrolled terms:Atmospheric absorption - Infrared wavelengths - Polynomial fitting method - Radiation transmission - Solar irradiances - Spectral calibration - Spectral scanning - Wavelength coverage

Classification code:443.1  Atmospheric Properties - 657.1  Solar Energy and Phenomena - 723  Computer Software, Data Handling and Applications - 741.1  Light/Optics - 741.3  Optical Devices and Systems

Numerical data indexing:Size 4.00e-07m to 2.50e-06m, Size 5.00e-10m

DOI:10.3788/gzxb20174606.0601003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 10>

Accession number:20173104014365

Title:Off-axis Non-rotationally Symmetric Superposition Square Spot Uniform Concentration Fresnel Lens

Authors:Wang, Jin-Jun (1); Wang, Xia (2); Ning, Duo (1)

Author affiliation:(1) College of Electrical and Information Engineering, Shannxi University of Science &amp; Technology, Xi'an; 710021, China; (2) College of Electrical and Control Engineering, Xi'an University of Science &amp; Technology, Xi'an; 710054, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0622003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Aiming at the defects of the poor uniformity of concentration distribution and the focused spotshape does not match with solar cells in the traditional point focus Fresnel lens, square spot uniformconcentration Fresnel lens was designed by using the method of off-axis non-rotationally Symmetric Superposition. The square non-rotating symmetry structure was adopted in the lens, a square hole was intercepted in the center of the lens when the lens was designed, which can reduce the center peak irradiance of the focal spot and improve the concentrated distribution on the receiving surface in order to improve the uniformity of the spot light. The ray tracing method has been used to simulate and analyze the influence on the condensing performance caused by structure parameter of lens such as off-axis offset, the length of hole and the off-axis focus length. The results show that the shape of the focus spot of the lens designed by this method is square, and the concentration uniformity is up to 90%. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Optical instrument lenses

Controlled terms:Photovoltaic cells - Ray tracing - Solar energy

Uncontrolled terms:Concentrating photovoltaic - Focal lengths - Fresnel lens - Off-axis - Square spot - Symmetric Superposition

Classification code:657.1  Solar Energy and Phenomena - 741.1  Light/Optics - 741.3  Optical Devices and Systems

Numerical data indexing:Percentage 9.00e+01%

DOI:10.3788/gzxb20174606.0622003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 11>

Accession number:20173104014352

Title:A Compact Tunable Filter Based on Metamaterial Structure

Authors:Zhao, Ya-Juan (1, 2); Wang, Dong-Hong (1, 2); Zhang, Ze-Kui (1, 2); Zhang, Rong (1, 2); Li, Bao-Yi (1, 2); Zhang, Han (1, 2)

Author affiliation:(1) No. 33 Research Institute of China Electronics Technology Group Corporation, Taiyuan; 030006, China; (2) Electromagnetic Protection Materials and Technology Key Laboratory of Shanxi Province, Taiyuan; 030006, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616005

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:To improve the utilization of spectrum resources and solve the problem of large volume of traditional filter, a metamaterial filter with a compact size of 15 mm&times;20 mm was designed by using the high integration split-ring resonators. Based on time domain finite integral method, the response between the reflection coefficient curve of the split-ring structure filter and the electromagnetic parameters was analyzed. By loading tunable diode into the gap of split-ring, the filter was continuously tunable at X-ray band (from 10.9 GHz to 12 GHz), extending the operating frequency band of the filter. The bandwidth of the designed filter is about 11.0%, return loss minimum is 32 dB and insertion loss maximum is 0.38 dB. The results illustrate that the split-ring metamaterial filter shows the characteristics of compact size, wide bandwidth and good band pass. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Metamaterials

Controlled terms:Bandpass filters - Bandwidth - Diodes - Frequency bands - Optical resonators - Resonators - Ring gages - Time domain analysis

Uncontrolled terms:Electromagnetic parameters - Filter - Finite integral method - Frequency tunable - Metamaterial structures - Operating frequency bands - Split ring resonator - Split ring structures

Classification code:703.2  Electric Filters - 716.1  Information Theory and Signal Processing - 741.3  Optical Devices and Systems - 921  Mathematics - 943.3  Special Purpose Instruments - 951  Materials Science

Numerical data indexing:Decibel 3.20e+01dB, Decibel 3.80e-01dB, Frequency 1.09e+10Hz to 1.20e+10Hz, Percentage 1.10e+01%

DOI:10.3788/gzxb20174606.0616005

Funding Details: Number; Sponsor: 2015021083; Natural Science Foundation of Shanxi Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 12>

Accession number:20173104014354

Title:Spin Hamilonian Parameters and Local Structure of C<inf>3</inf>H<inf>7</inf>NO<inf>2</inf>:VO<sup>2+</sup>Crystals

Authors:Wang, Ning (1); Xie, Lin-Hua (1)

Author affiliation:(1) School of Physics and Electronic Engineering, Sichuan Normal University, Chengdu; 610101, China

Corresponding author:Xie, Lin-Hua(xielh1974@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616007

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the crystal field theory (CF mechanism) and the charge transfer mechanism (CT mechanism), the spin Hamilonian parameters (EPR parameters), the optical absorption spectrum and the charge transfer transition energy levels of C<inf>3</inf>H<inf>7</inf>NO<inf>2</inf>:VO<sup>2+</sup>crystal are calculated by the double spin orbit coupling parameter model, the high-order perturbation formulas of spin Hamiltonian parameters and the crystal field energy formulas. The results calculated by using the CF mechanism and the results calculated by using the double mechanism are compared. It is found that the contribution of the CT mechanism to the C<inf>3</inf>H<inf>7</inf>NO<inf>2</inf>crystal doped with high valence vanadium ion (V<sup>4+</sup>) could not be ignored, when calculating EPR parameters of this crystal. &copy; 2017, Science Press. All right reserved.

Number of references:30

Main heading:Crystal structure

Controlled terms:Absorption spectroscopy - Beryllium compounds - Charge transfer - Electromagnetic wave absorption - Electron spin resonance spectroscopy - Hamiltonians - Light absorption - Perturbation techniques

Uncontrolled terms:C3H7NO2:VO^2+ - Charge transfer mechanisms - Charge transfer transitions - Crystal field energy - Crystal field theory - Hyperfine structure - Spin Hamiltonian parameters - Spin-orbit couplings

Classification code:711  Electromagnetic Waves - 741.1  Light/Optics - 801  Chemistry - 802.2  Chemical Reactions - 921  Mathematics - 933.1.1  Crystal Lattice

DOI:10.3788/gzxb20174606.0616007

Funding Details: Number; Acronym; Sponsor: 11074179; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 13>

Accession number:20173104014342

Title:Texture Reconstruction Method for Complex Free-form Shapes

Authors:Liu, Xing-Ming (1); Cai, Tie (1); Li, A-Meng (2); Wang, Hui-Jing (1); Yan, Li-Jun (1)

Author affiliation:(1) Intelligent Color Molding Technology of Engineering Laboratory, School of Computer Science, Shenzhen Institute of Information and Technology, Shenzhen; Guangdong; 518172, China; (2) College of Optoelectronic Engineering, Key Laboratory of Optoelectronics Device and System, Shenzhen University, Shenzhen; Guangdong; 518060, China

Corresponding author:Cai, Tie(Cait@sziit.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0612003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A texture reconstruction method based on Markov random fields optimization was proposed to reconstruct the complex free-form shapes. The method used a three-dimensional digital device developed by laboratory to capture the range data and the texture images, and registered the local capture range data into global coordination system to establish the surface of the object. To build a realistic textured model, the captured texture images were mapped to the reconstructed surface by coordinate transformation, and a texture fusion processing was followed. The proposed method does not impose any constraints on the topology of the surface, and a realistic textured model of the free-form surface can be achieved. The data collection and realistic three-dimensional reconstruction of material object were experimented by the proposed method, the results show the reliability and effectiveness of the proposed method. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Image texture

Controlled terms:Computer vision - Digital devices - Markov processes - Optical data processing - Topology

Uncontrolled terms:Camera calibration - Co-ordinate transformation - Global coordination systems - Optical measurement - Reconstructed surfaces - Stripe projection - Texture blending - Three-dimensional reconstruction

Classification code:723.2  Data Processing and Image Processing - 723.5  Computer Applications - 921.4  Combinatorial Mathematics, Includes Graph Theory, Set Theory - 922.1  Probability Theory

DOI:10.3788/gzxb20174606.0612003

Funding Details: Number; Sponsor: 2015A030310511; Natural Science Foundation of Guangdong Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 14>

Accession number:20173104014361

Title:High Power 1060 nm Distributed Feedback Semiconductor Laser with Double-Trench Ridge Waveguide Structure

Authors:Wang, Wei (1); Zhai, Teng (1); Wang, Hao (1); Tan, Shao-Yang (1); Wang, Wei (1); Zhang, Rui-Kang (1); Ji, Chen (1)

Author affiliation:(1) Key Laboratory of Semiconductors Materials, Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China

Corresponding author:Zhang, Rui-Kang(rkzhang@semi.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0614001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In this letter a 1060 mm distributed feedback laser with an optimized double-trench ridge waveguide structure is presented. The lateral mode stability is strongly improved under continuous-wave operating condition. The maximum single spectral and spatial mode output power is approximately 300 mW with a side mode suppression ratio larger than 45 dB. The capability of the device for green light generation is also demonstrated experimentally by pumping a periodically poled lithium niobate waveguide crystal, which the power of the green light is about 3 mW. &copy; 2017, Science Press. All right reserved.

Number of references:14

Main heading:Ridge waveguides

Controlled terms:Distributed feedback lasers - Feedback - Harmonic generation - Nonlinear optics - Semiconductor lasers - Waveguide components - Waveguides

Uncontrolled terms:Distributed feedback - Distributed feedback semiconductor laser - High power - Operating condition - Periodically poled lithium niobate waveguides - Ridge waveguide structures - Side mode suppression ratios - Single mode

Classification code:714.3  Waveguides - 731.1  Control Systems - 741.1.1  Nonlinear Optics - 744.1  Lasers, General - 744.4.1  Semiconductor Lasers

Numerical data indexing:Decibel 4.50e+01dB, Power 3.00e-01W, Power 3.00e-03W, Size 1.06e+00m, Size 1.06e-06m

DOI:10.3788/gzxb20174606.0614001

Funding Details: Number; Acronym; Sponsor: 61271066; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61274046; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61474111; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 15>

Accession number:20173104014368

Title:Design of Landing Boat Optical Alignent Method and LED Guidance Source

Authors:Liu, Dian-Hong (1); Zhang, Xiao-Hui (1); Zhang, Shuang (1)

Author affiliation:(1) Ordnance Engineering Department, Naval University of Engineering, Wuhan; 430033, China

Corresponding author:Zhang, Xiao-Hui(779294469@qq.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0622006

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:An optical alignment method based on color/relative position of guidance light source is designed, landing boat pilot can determine whether is yawing and the degree of yawing through the relative position of the light source with different colors, so as to improve the pricision and safety when entering into well-dock quickly. Guidance light source beam is of 90&deg; horizontal and vertical angle of view, and illuminate sea surface farthest to 200 m for uniform lighting, with CREE XPE LED, free-form lens is designed by improved grid mapping method to obtain the required rectangular illumination field. The simulation and experimental results show that the designed LED guidance source can meet the illumination requirements of the landing alignment system. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Light emitting diodes

Controlled terms:Alignment - Boats - Landing - Light sources - Mapping - Surface waters

Uncontrolled terms:Alignment system - Freeform lens - Grid mapping - Illumination fields - Optical alignments - Relative positions - Science and Technology - Sea surfaces

Classification code:405.3  Surveying - 444.1  Surface Water - 601.1  Mechanical Devices - 674.1  Small Marine Craft - 714.2  Semiconductor Devices and Integrated Circuits

Numerical data indexing:Size 2.00e+02m

DOI:10.3788/gzxb20174606.0622006

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 16>

Accession number:20173104014358

Title:Preprocessing Method of Sensor Pattern Noise in Camera Source Detection of Photo Images

Authors:Guo, Hao-Long (1); Zhang, Rong (1); Guo, Li-Jun (1); Jiang, Bao-Chuan (1)

Author affiliation:(1) Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo; Zhejiang; 315211, China

Corresponding author:Zhang, Rong(zhangrong@nbu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0610003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The Sensor Pattern Noise (SPN) is easily contaminated by CFA interpolation noise and JPEG compression noise. These unwanted artifacts may result in false identifications in SPN-based source camera detection. A preprocessing method of SPN based on spatial smoothing was proposed in order to improve the accuracy of source camera detection. It is assumed that the SPN is a random signal similar to white Gaussian noise (WGN), and has a flat frequency spectrum similar to that of WGN in the frequency domain. Based on this assumption, WGN-guided filtering was used in the spatial domain in the proposed method. The spatial smoothing effect can suppress the unwanted artifacts of the SPN. At the same time, the SPN can maintain its own properties and possess similar characteristics with WGN. The proposed method was evaluated on our own database of camera images from cellphones. The experimental results show that the proposed method outperforms the existing preprocessing methods, the accuracy of the source camera detection being increased by more than 0.026 in terms of the Kappa statistical coefficients. The robustness to JPEG compression of the proposed method is also better than others. &copy; 2017, Science Press. All right reserved.

Number of references:17

Main heading:Gaussian noise (electronic)

Controlled terms:Cameras - Digital forensics - Frequency domain analysis - Image compression - White noise

Uncontrolled terms:Digital image forensics - Sensor pattern noise - Smoothing filters - Source detection - White Gaussian Noise

Classification code:742.2  Photographic Equipment - 921.3  Mathematical Transformations

DOI:10.3788/gzxb20174606.0610003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 17>

Accession number:20173104014350

Title:Fabrication and Plasmonic Chirality of Tilted-L-shaped Nanostructure

Authors:Wang, Gang (1); Zhang, Zhong-Yue (1); Wang, Li (1)

Author affiliation:(1) School of Physics and Information Technology, Shaanxi Normal University, Xi'an; 710119, China

Corresponding author:Wang, Li(l.wang@snnu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Large scale tilted-L-shaped chiral nanostructures were fabricated using oblique angle deposition on polystyrene nanosphere templates. SiO<inf>2</inf>layer is deposited on the polystyrene nanosphere templates and the Ag layer is deposited on the SiO<inf>2</inf>layer to form a metallic arm of tilted-L-shaped chiral nanostructures. Another metallic arm is deposited in the perpendicular direction on the polystyrene nanosphere templates directly. The chirality of tilt-L-shaped chiral nanostructures originated from the different altitude of two metallic arms. By manipulating the thickness of SiO<inf>2</inf>layer the circular dicroism can be easily manipulated. Finite element method was used to perform the simulation of tilt-L-shaped chiral nanostructures. Simulation results demonstrate that the circular dicroism mechanism of tilt-L-shaped chiral nanostructures can be explained by chiral plasmonic Born-Kuhn model. &copy; 2017, Science Press. All right reserved.

Number of references:28

Main heading:Finite element method

Controlled terms:Chirality - Deposition - Nanospheres - Nanostructures - Plasmons - Polystyrenes - Silica

Uncontrolled terms:Ag layers - Chiral - Chiral nanostructures - Circular dicroism - L-shaped - Oblique-angle deposition - Plasmonic - Polystyrene nanospheres

Classification code:761  Nanotechnology - 802.3  Chemical Operations - 815.1.1  Organic Polymers - 921.6  Numerical Methods - 931.3  Atomic and Molecular Physics - 933  Solid State Physics

DOI:10.3788/gzxb20174606.0616003

Funding Details: Number; Acronym; Sponsor: 61575117; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 18>

Accession number:20173104014371

Title:The Regulation and Control of Electromagnetically Induced Transparency and Absorption in an Optical-radio Two-photon Coupling Configuration

Authors:Zhang, Wei-Feng (1); Yuan, Qing (1); Li, Xiao-Li (1, 2); Shang, Ya-Xuan (2); Zhang, Lian-Shui (1)

Author affiliation:(1) College of Physical science and Technology, Hebei University, Baoding; Hebei; 071002, China; (2) State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing; 100083, China

Corresponding author:Li, Xiao-Li(xiaolixiaoli2012@semi.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0626001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The interaction of light and matter can induce many strange quantum optical phenomena, in which EIT and EIA are the most typical ones. In this paper, a radio-frequency field is introduced between two hyperfine levels of the excited state into a well-studied lambda three level system to form a modified quasi-lambda four level system consisting of an optical-radio two-photon coupling field and a probing field. Both EIT and EIA can be obtained in this system. By discussing the quantum coherence process after the optical-radio field is turned on until the system is stable, the generation and transformation of EIT and EIA during this period of time are analyzed, which is helpful to probe the correlation between two phenomena and to seek the method to regulate and control them. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Quantum theory

Controlled terms:Atoms - Excited states - Optical correlation - Photons - Quantum optics - Radio waves - Transparency

Uncontrolled terms:Electromagnetic induced transparency - Induced absorption - Quantum coherence - Radio frequency fields - Two-photon coupling

Classification code:711  Electromagnetic Waves - 741.1  Light/Optics - 931.3  Atomic and Molecular Physics - 931.4  Quantum Theory; Quantum Mechanics

DOI:10.3788/gzxb20174606.0626001

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 19>

Accession number:20173104014366

Title:Adjustable Redundancy of the Micro Spectrometer Structure Parameter

Authors:Zheng, Hai-Yan (1); Tan, Meng-Ke (1); Long, Ya-Xue (1); Guo, Han-Ming (1)

Author affiliation:(1) School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai; 200093, China

Corresponding author:Guo, Han-Ming(hmguo@usst.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0622004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to investigate the influence of the optical elements of Czerny-Turner (CT) optical path structure on the optical properties of the spectrometer when the optical elements are deviated from the theoretical design parameters, the mathematical model was established to successfully restore the asymmetric CT optical path structure designed by Zemax, under the condition of unaffecting the spectrometer resolution, the components of adjustable redundancy was got. The results show that the adjustable range of the deflection angle of the collimating mirror and the diffraction grating is &plusmn;0.19 and &plusmn;0.17 degrees, and the adjustable range of the condenser and the CCD is &plusmn;0.12 mm. The adjustable range of the above four variables is the smallest, which has a great influence on the final resolution of the spectrometer. The research provides the references for the mechanical adjustment mechanism of each optical element in CT structure. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Structural design

Controlled terms:Optical design - Optical properties - Redundancy - Spectrometers

Uncontrolled terms:Collimating mirror - Czerny-Turner - Mechanical adjustment - Resolution ratios - Spectrometer resolutions - Structure parameter - Theoretical design - Zemax

Classification code:408.1  Structural Design, General - 741.1  Light/Optics - 741.3  Optical Devices and Systems

DOI:10.3788/gzxb20174606.0622004

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 20>

Accession number:20173104014346

Title:Experimental Investigation of Light Intensity Distribution and Fluctuation Characteristics in Lanzhou Area

Authors:Wang, Hui-Qin (1); Li, Yuan (1); Cao, Ming-Hua (1); Peng, Qing-Bin (1)

Author affiliation:(1) School of Computer &amp; Communication, Lanzhou University of Technology, Lanzhou; 730050, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0601002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A wireless optical link in length of 610 m is established in Lanzhou area to investigate the light intensity distribution and fluctuation characteristics of Gaussian laser under different weather conditions. The three-dimensional pseudo-color transform method is utilized to analyze the spatial distribution of light intensity. The results show that the intensity distribution of the main lobe within the light spot follows the Gaussian distribution. The steepness of light intensity distribution decreases and the attenuation of light intensity increases according to the order of sunny day, cloudy day and overcast day in turn. Moreover, the atmospheric scintillation index is analyzed by using the measured light intensity data. The results show scintillation index of sunny day, sunny day after rain and overcast day are 0.2254, 0.1892 and 0.1888, respectively. This indicates that the light intensity fluctuation in sunny day is higher than sunny day after rain and overcast day. The probability density distribution of light intensity is obtained by using nonlinear fitting of histograms of the normalized optical intensity data. They all conform to log-normal distribution. Especially, the probability density in sunny day is more consistent with log-normal distribution, the goodness of its fitted curve is up to 0.99750. &copy; 2017, Science Press. All right reserved.

Number of references:17

Main heading:Probability distributions

Controlled terms:Atmospheric optics - Atmospheric turbulence - Light - Light polarization - Light transmission - Normal distribution - Probability - Probability density function - Rain - Scintillation

Uncontrolled terms:Laser transmission - Light intensity distribution - Light intensity fluctuations - Probability density distribution - Scintillation index

Classification code:443.1  Atmospheric Properties - 443.3  Precipitation - 741.1  Light/Optics - 922.1  Probability Theory

Numerical data indexing:Size 6.10e+02m

DOI:10.3788/gzxb20174606.0601002

Funding Details: Number; Acronym; Sponsor: 61265003; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61461026; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61465007; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 21>

Accession number:20173104014363

Title:Optical System Design of the Standard Scattering Plate Calibration System Used in Calibration Visibility Meter

Authors:Zhang, Jian (1); Zhang, Guo-Yu (1, 2, 3); Xu, Da (1); Sun, Gao-Fei (1, 2, 3); Su, Shi (1, 2, 3); Zhang, Jian-Liang (4)

Author affiliation:(1) Changchun University of Science and Technology, Changchun; 130022, China; (2) Key Laboratory of Optical Control and Optical Information Transmission Technology, Department of Education, Changchun; 130022, China; (3) Optical Measurement and Control Instrumentation, Jilin Province Engineering Research Center, Changchun; 130022, China; (4) Aviation University of Air Force, Changchun; 130022, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0622001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to realize the rapid and high precision calibration of standard scattering plate, the standard scattering plate calibration system used in calibration visibility meter was established. The design method of panoramic imaging colorimeter optical system of the calibration system was researched. Based on the optical properties of parabolic reflector, the calculation method of paraboloid surface was deduced. Then, according to the requirement of the calibration system optical system, the design of optical system of panoramic imaging colorimeter optical system was completed. Finally, the panoramic imaging colorimeter optical system was modeling analyzed, and an experiment was designed to verifies the correctness of the design and simulation results. The experiment shows that the spatial measuring range is in the range of incident angle from 0&deg; to 90&deg; and azimuth angle from 0&deg; to 360&deg;; and the angular resolution is 1&deg; which satisfy the design requirements of the optical system of the standard scattering plate calibration system used in a calibration visibility meter. &copy; 2017, Science Press. All right reserved.

Number of references:27

Main heading:Optical systems

Controlled terms:Calibration - Color - Colorimeters - Colorimetry - Forward scattering - Optical design - Optical properties - Visibility

Uncontrolled terms:Calibration system - Design and simulation - Design of instruments - High-precision calibration - Panoramic imaging - Parabolic reflector - Scattering measurements - Visibility meters

Classification code:711  Electromagnetic Waves - 741  Light, Optics and Optical Devices - 941.3  Optical Instruments - 941.4  Optical Variables Measurements

DOI:10.3788/gzxb20174606.0622001

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 22>

Accession number:20173104014351

Title:Enhanced Terahertz Modulation by Harvesting the Surface-plasmon-polariton Modes Based on Graphene Metamaterial

Authors:Wang, Meng-Qi (1); Sun, Dan-Dan (1); Ren, Zhao-Yu (1)

Author affiliation:(1) Institute of Photonics &amp; Photon-Technology, Northwest University, Xi'an; 710069, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616004

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Graphene-based Split Ring Resonator (SRR) metamaterial is proposed with capacity of modulating transmitted THz waves based on the principle of surface-plasmon-polariton. The resonant strengths of plasmonic modes can be significantly enhanced by increasing the Fermi level of graphene, changing the gap distance of SRR or by stacking graphene layers, thus high modulation depth is achieved in both higher frequency region and lower frequency region. Modulation depth of 81% and 68% are achieved in the two regions, which can be further enhanced to 93% and 95%, provides a dynamical modulation based on controllable Fermi level of graphene. This graphene-based design paves the way forthe design of THz applications, such as modulators and absorbers. &copy; 2017, Science Press. All right reserved.

Number of references:24

Main heading:Graphene

Controlled terms:Electromagnetic wave polarization - Fermi level - Metamaterials - Modulation - Phonons - Photons - Plasmons - Quantum theory - Ring gages - Surface plasmon resonance  - Terahertz waves

Uncontrolled terms:Higher frequencies - Lower frequencies - Modulation depth - Plasmonic - Resnonace - Split-ring resonators (SRR) - Surface plasmon polariton modes - Surface plasmon polaritons

Classification code:711  Electromagnetic Waves - 761  Nanotechnology - 804  Chemical Products Generally - 931.3  Atomic and Molecular Physics - 931.4  Quantum Theory; Quantum Mechanics - 943.3  Special Purpose Instruments - 951  Materials Science

Numerical data indexing:Percentage 6.80e+01%, Percentage 8.10e+01%, Percentage 9.30e+01%, Percentage 9.50e+01%

DOI:10.3788/gzxb20174606.0616004

Funding Details: Number; Acronym; Sponsor: 61275105; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61606160; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 23>

Accession number:20173104014340

Title:3D Refractive Index Measurement for Spun Polarization-maintaining Optical Fiber

Authors:Huang, Su-Juan (1); Zeng, Jun-Zhang (1); Yan, Cheng (1); Lin, Yun-Yi (1); Wang, Ting-Yun (1)

Author affiliation:(1) Key Laboratory of Special Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai; 200072, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0612001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on digital holographic tomography and transverse interference system, by means of rotating the spun polarization-maintaining optical fiber within 180&deg; viewing angle, optimal digital holograms of a section of spun polarization-maintaining optical fiber were recorded by CCD, and then the phase information was extracted through digital image process and the angular spectrum algorithm. Using the filtered back-projection algorithm, the 2D refractive index distribution of each cross-section was retrieved in order to constitute the 3D refractive index distribution of a section of spun polarization-maintaining optical fiber, which revealed the 3D inner structure of the fiber. The measurement results show that the stress legs rotate synchronously with the spin of polarization-maintaining optical fiber, and the refractive indices of the fiber core, stress legs and cladding are unchanged. Finally, the position of the stress legs was achieved by edge detection algorithm and then the spun angle was computed. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Polarization-maintaining fiber

Controlled terms:Edge detection - Fibers - Holograms - Holography - Image processing - Optical data processing - Optical fibers - Polarization - Refractive index - Signal detection  - Spectrum analysis - Spinning (fibers)

Uncontrolled terms:Digital holography - Edge detection algorithms - Filtered back projection - Inner structure - Polarization maintaining optical fiber - Transverse interferences

Classification code:716.1  Information Theory and Signal Processing - 723.2  Data Processing and Image Processing - 741.1  Light/Optics - 741.1.2  Fiber Optics - 743  Holography - 819.3  Fiber Chemistry and Processing

DOI:10.3788/gzxb20174606.0612001

Funding Details: Number; Acronym; Sponsor: 61178088; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61475098; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 24>

Accession number:20173104014345

Title:Research of Optical Properties of Atmospheric Particles Measured with Active Differential Optical Absorption Spectroscopy

Authors:Li, Su-Wen (1); Mo, Fu-Sheng (1); Shi, Rui-Rui (1); Si, Fu-Qi (2); Qin, Min (2); Wei, Min-Hong (1); Li, Huai-Jiang (1)

Author affiliation:(1) School of Physics and Electronic Information, Huaibei Normal University, Huaibei; Anhui; 235000, China; (2) Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Science, Hefei; 230031, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0601001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A new spectrometry is developed to obtain near-ground the optical parameters of atmospheric particles. The Active Differential Optical Absorption Spectroscopy (DOAS) system is developed to measure the optical parameters of atmospheric particles. Under the clean atmospheric condition, the reference optical path is designed to calibrate the system. The broad wavelength band xenon arc lamp is used to monitor the optical parameters of atmospheric particles as light source of differential optical absorption spectroscopy system. The model of optical depth is studied to retrieve the optical properties of atmospheric particles. The optical depth of atmospheric particeles, Angstrom turbidity coefficent, Angstrom wavelength exponent, and visibility were retrieved during the field campaign. Angstrom parameters were retrieved by log-linear regression. The total atmospheric absorption are measured to attain average regional concentrations basing on the active differential optical absorption spectroscopy system, which is more representative and applicable. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Optical properties

Controlled terms:Absorption spectroscopy - Arc lamps - Electromagnetic wave absorption - Elementary particles - Light absorption - Light sources - Optical variables control

Uncontrolled terms:Angstrom parameter - Atmosphere optics - Atmospheric absorption - Atmospheric conditions - Atmospheric optical depth - Atmospheric particles - Broad wavelength band - Differential optical absorption spectroscopy

Classification code:707.2  Electric Lamps - 711  Electromagnetic Waves - 731.3  Specific Variables Control - 741.1  Light/Optics - 931.3  Atomic and Molecular Physics

DOI:10.3788/gzxb20174606.0601001

Funding Details: Number; Acronym; Sponsor: 41275027; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 41475017; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 25>

Accession number:20173104014355

Title:Study of Optical Properties of Au Nano-spheres in the Ambient Medium with Temperature Changing

Authors:Luo, Dao-Bin (1); Han, Xiang-E (1); Duan, Lu-Jie (1)

Author affiliation:(1) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710071, China

Corresponding author:Han, Xiang-E(xehan@mail.xidian.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616008

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Effect of temperature and size on the dielectric function of noble metal nanoparticles are analyzed theoretically, and the optical properties of the nano-spheres are calculated including the dispersion relation and temperature characteristics of refractive index. The results show that the real part of dielectric function of the bulk gold material or gold nanoparticles rise with increasing of temperature, but the imaginary part demonstrate different temperature characteristics. For the absorption efficiency of the Au nano-sphere, the peak value of the absorption efficiency increased with the increasing of temperature, and the temperature sensitivity of the absorption efficiency decreases with the particle size increasing at the range of 10~100 nm. &copy; 2017, Science Press. All right reserved.

Number of references:25

Main heading:Optical properties

Controlled terms:Efficiency - Gold - Light scattering - Metal nanoparticles - Nanoparticles - Nanospheres - Particle size - Precious metals - Refractive index - Spheres

Uncontrolled terms:Absorption efficiency - Dielectric functions - Dispersion relations - Effect of temperature - Mie theory - Temperature changing - Temperature characteristic - Temperature sensitivity

Classification code:547.1  Precious Metals - 741.1  Light/Optics - 761  Nanotechnology - 913.1  Production Engineering

Numerical data indexing:Size 1.00e-08m to 1.00e-07m

DOI:10.3788/gzxb20174606.0616008

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 26>

Accession number:20173104014364

Title:Design and Implementation of Multi-functional in situ Monitoring Probe Based on MOCVD

Authors:Yang, Chao-Pu (1, 2); Fang, Wen-Qing (3); Liu, Ming-Bao (1, 2); Li, Chun (1, 2); Zhou, Chun-Sheng (1, 2)

Author affiliation:(1) College of Chemical Engineering and Modern Materials, Shangluo University, Shangluo; Shaanxi; 726000, China; (2) Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University, Shangluo; Shaanxi; 726000, China; (3) National Engineering Technology Research Center for LED on Silicon Substrate, Nanchang University, Nanchang; Jiangxi; 330047, China

Corresponding author:Fang, Wen-Qing(fwq@ncu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0622002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:According to the development needs of in situ monitoring equipment of MOCVD, a multi-functional in situ monitoring probe was designed, which can measure three infrared thermometry with reflectivity correction and reflectivity curve of two different wavelengths, namely: 940 nm/1550 nm double-wavelength colorimetric thermometry, 940 nm monochromatic radiation thermometry, 1550 nm monochromatic radiation thermometry, 940 nm reflectivity curve and 1550 nm reflectivity curve. The test measuring analysis was done for the properties of in-situ monitoring probe, the silicon (111) substrate growing blue light LED epitaxial wafer with InGaN/GaN MQW structure in homemade MOCVD system by using the probe, was monitored on-line. Result shows that the lowest range of three infrared thermometry is equally 435&#8451;; the accuracy within 1&#8451; colorimetric temperature range from 900&#8451; to 1100&#8451;; the repeatability within 0.7&#8451; from 700&#8451; to 1100&#8451;; insentive to changes in height within 2 mm; and the method can avoid the affection of the effective area change of detector aperture. The relative error of n-GaN layer thickness measurement was 3.6% by analyzing 940 nm reflectivity curve. So it can be seen that MOCVD in situ thermometry and film thickness measurement can be achieved by the probe at the same time. The design can provide reference for the developing of MOCVD in situ monitoring device. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Vanadium alloys

Controlled terms:Colorimetry - Film thickness - Gallium alloys - Indium alloys - Light emitting diodes - Metallorganic chemical vapor deposition - Monitoring - Optical design - Probes - Reflection  - Silicon wafers - Thermometers - Thickness gages - Thickness measurement - Tungsten alloys

Uncontrolled terms:Design and implementations - Double wavelengths - Epitaxial - In- situ monitoring - Infrared thermometry - Monochromatic radiation - Silicon (111) substrates - Two different wavelengths

Classification code:543.5  Tungsten and Alloys - 543.6  Vanadium and Alloys - 549.3  Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 714.2  Semiconductor Devices and Integrated Circuits - 741.1  Light/Optics - 802.2  Chemical Reactions - 941.4  Optical Variables Measurements - 943.2  Mechanical Variables Measurements - 943.3  Special Purpose Instruments - 944.5  Temperature Measuring Instruments

Numerical data indexing:Percentage 3.60e+00%, Size 1.55e-06m, Size 9.40e-07m

DOI:10.3788/gzxb20174606.0622002

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 27>

Accession number:20173104014359

Title:Power Ratio Adjustment and 90&deg; Phase Difference Compensation Method of Space Optical Hybrid

Authors:Cao, Hai-Shuai (1, 2); Jiang, Lun (2); Zhang, Peng (2); Nan, Hang (1, 2); Tong, Shou-Feng (2); Zhang, Li-Zhong (2)

Author affiliation:(1) School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun; 130022, China; (2) Key Laboratory of Fundamental Science for National Defense of Aero and Ground Laser Communication Technology, Changchun University of Science and Technology, Changchun; 130022, China

Corresponding author:Jiang, Lun(jlciomp@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0606001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the comparation and analysis of phase compensation methods of 90&deg; space optical hybrid, two new methods were proposed. The first method is that 1/4 wave plate on the local oscillator laser branch is rotated to compensate for the phase difference and the first 1/2 wave plate on the signal laser branch is rotated to adjust the power ratio of I/Q branchs. The second method is that 1/2 wave plate and 1/4 wave plate on the local oscillator laser branch are rotated respectively to the calculated angle to achieve a predetermined phase difference and power ratio. The simulation analysis and system experiment of the two methods were carried out. The results of the first method show that when the angle between 1/4 wave plate fast axis and x axis varies from -10&deg; to 10&deg;, the phase difference ranges from -14&deg; to 29&deg; and power ratio ranges from 0.7 to 1.4; when the angle between 1/2 wave plate fast axis and y axis varies from 35&deg; to 55&deg;, the power ratio ranges from 0.47 to 2.1.The positions of 1/2 wave plate fast axis and 1/4 wave plate fast axis were solved by the second method when I/Q phase difference is respectively 80&deg;, 85&deg;, 90&deg;, 85&deg; and 100 &deg; and the I/Q power ratio is 0.5, 0.75, 1, 1.5 and 2. Either of this two methods can set the phase difference and power ratio simply and precisely, which is advantageous to the phase locking of the optical phase-locked loop and the enhancement of the intensity of the demodulated signal. &copy; 2017, Science Press. All right reserved.

Number of references:9

Main heading:Phase space methods

Controlled terms:Adaptive optics - Light polarization - Locks (fasteners) - Optical communication - Optical devices

Uncontrolled terms:Coherent communication - Free Space Optical communication - Homodyning - Optical hybrids - Phase compensation

Classification code:717.1  Optical Communication Systems - 741.1  Light/Optics - 741.3  Optical Devices and Systems - 921  Mathematics

DOI:10.3788/gzxb20174606.0606001

Funding Details: Number; Acronym; Sponsor: 91338116; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 28>

Accession number:20173104014360

Title:Detection for Impact Energy Based on Fiber Bragg Grating

Authors:Li, Hui (1); Yu, You-Long (1); Geng, Shu-Wei (1); Zhao, Zeng (2); Lai, Xiao-Ming (2); Wang, Guo-Xin (2); Yin, Shen (2)

Author affiliation:(1) School of Instrument Science and Opto-electronics Engineering, Hefei University of Technology, Hefei; 230009, China; (2) Beijing Spacecrafts, Beijing; 100080, China

Corresponding author:Yu, You-Long(youlongyu@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0606002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A method to detect the impact energy using the fiber Bragg grating as the sensing element was presented. A simple impact system was built to detect the incident stress wave energy while fiber Bragg grating were axially symmetrically pasted to the round rod. The experiment result shows that both the amplitude of incident stress wave and energy transfer efficiency reach the biggest with two rod positive impacts. The energy of incident stress wave is mainly concentrated in the range of 0~5000 Hz based on the analysis of signal in frequency domain. The energy transfer ratio of impact bar to round rod is more than 93% while comparing the incident stress wave energy and the kinetic energy of the impact bar, which meets the basic requirements of the testing for the impact mechanical properties. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Bragg gratings

Controlled terms:Elastic waves - Energy transfer - Fiber Bragg gratings - Fibers - Frequency domain analysis - Kinetic energy - Kinetics - Signal analysis - Wave energy conversion

Uncontrolled terms:Analysis of signal - Energy transfer efficiency - Energy transfer ratios - Frequency domains - Impact mechanical property - Impact property - Incident pulse - Stress wave

Classification code:615.6  Wave Energy - 716.1  Information Theory and Signal Processing - 741.3  Optical Devices and Systems - 921.3  Mathematical Transformations - 931  Classical Physics; Quantum Theory; Relativity - 931.1  Mechanics

Numerical data indexing:Frequency 0.00e+00Hz to 5.00e+03Hz, Percentage 9.30e+01%

DOI:10.3788/gzxb20174606.0606002

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 29>

Accession number:20173104014349

Title:A Method for Solving the Refractive Index Temperature Coefficient Empirical Formula Constants of Optical Glasses Based on 1st Opt

Authors:Ma, Zhi-Yuan (1); Wang, Peng-Fei (2); Wu, Zhi-Qiang (1); Wu, De-Lin (1); Su, Yong (1)

Author affiliation:(1) Test Technology Research Institute, CDGM GLASS Co., Ltd., Chengdu; 610000, 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:Wang, Peng-Fei(pfwang@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0616002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to solve the problem that large deviation of the refraction index and temperature coefficient of refraction index obtained by regression calculation from the experimentally measured ones comes out when ZEMAX method is used for solving these empirical formula constants and regression calculation, 1stOpt differential evolution was used to calculate the temperature coefficient of refraction index empirical formula constants. With fluoro-crown D-FK61 and flint H-TF3A optical glass as examples, the &lambda;<inf>tk</inf>coefficients calculated by the proposed method are consistent with the general numerical range of 0.08~0.33, and the difference of refractive index and its temperature coefficient between the value obtained by regression calculation method and the measured value is less than 1&times;10<sup>-5</sup>and 2&times;10<sup>-7</sup>/&#8451;, respectively. As an effective supplement of ZEMAX software to calculate the temperature coefficient of refractive index of the optical glasses, the proposed method greatly improves the accuracy and can provide accurate optical parameter guarantee for thermal compensation optical system design. &copy; 2017, Science Press. All right reserved.

Number of references:16

Main heading:Refractive index

Controlled terms:Evolutionary algorithms - Numerical methods - Optical glass - Optical systems - Optimization - Refraction - Regression analysis - Temperature

Uncontrolled terms:Differential Evolution - Empirical formulas - Inorganic materials - Large deviations - Optical parameter - Refraction index - Temperature coefficient - Thermal compensation

Classification code:641.1  Thermodynamics - 741.1  Light/Optics - 741.3  Optical Devices and Systems - 921.5  Optimization Techniques - 921.6  Numerical Methods - 922.2  Mathematical Statistics

DOI:10.3788/gzxb20174606.0616002

Funding Details: Number; Acronym; Sponsor: 61307046; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 30>

Accession number:20173104014341

Title:Application of Photoacoustic Spectroscopy in Multi-component Gas Concentration Detection

Authors:Zha, Shen-Long (1, 2); Liu, Kun (1); Tan, Tu (1); Wang, Gui-Shi (1); Gao, Xiao-Ming (1)

Author affiliation:(1) Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei; 230031, China; (2) University of Science and Technology of China, Hefei; 230031, China

Corresponding author:Gao, Xiao-Ming(xmgao@aiofm.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0612002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:CO and CH<inf>4</inf>as the fault gases in transformer, the detection of their concentration has important significant in transformer maintenance. In order to detect CH<inf>4</inf>and CO gas concentration in transformer accurately, a photoaoustic spectroscopy multi-component gas detection system based on broadband thermal radiation light source has been developed. Compared to resonant photoacoustic cell based photoacoustic detection system, the non resonant photoacoustic cell used in the system has the advantage of small volume, easy to processed, high sensitivity and the intensity of signal is the same everywhere in non-resonant photoacoustic cell, thus reduce the requirements for the installation of the detector. The performance of the system was evaluated by detection of CH<inf>4</inf>and CO. First, the relationship of the intensity of photoacoustic signal in non resonant photoacoustic cell between the radius and the modulation frequency was simulated by theoretical, it is illustrated that the signal enhanced with the reduction of the radius and the modulation frequency. Then the optimum modulation frequency of the system was determined as 22 Hz by the response of the system under different modulation frequencies. The function relations of photoacoustic signal and the temperature were studied, then the photocoustic signal was corrected by temperature compensate based on the function of signal and gas temperature under optimum modulation frequency to eliminate the impaction of temperature to photoacoustic signal, the stability of the system was improved after temperature compensate. The drift of the signal to temperature is 0.02323 V/&#8451; and 8.38348&times;10<sup>-5</sup>V/&#8451; respectively before and after temperature compensate. At last, the system was calibrated by different concentrations of CH<inf>4</inf>and CO gas, the experiment show that the photoacoustic signal increased with the increasing of gas concentration and the linearity can reach to 0.995 and 0.9984 respectively for the detection of different concentrations of CH<inf>4</inf>and CO gas. The multi-component gas detection system based on broadband photoacoustic spectroscopy has the sensitivity of 1 &mu;L/L for CO and CH<inf>4</inf>detection under atmospheric pressure with the 1s integration time. The developed system has low cost, good linearity and the sensitivity conform to the requirement of national standard in the process of transformer maintenance. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Modulation

Controlled terms:Atmospheric pressure - Carbon - Carbon monoxide - Cells - Cytology - Frequency modulation - Gas detectors - Gases - Infrared spectroscopy - Light sources  - Methane - Photoacoustic effect - Photoacoustic spectroscopy - Product liability - System stability

Uncontrolled terms:Broadband Light Sources - Gas detection - Modulation frequencies - Photoacoustic detection - Photoacoustic signals - Sensitivity - Temperature compensate - Temperature compensation

Classification code:443.1  Atmospheric Properties - 461.2  Biological Materials and Tissue Engineering - 741.1  Light/Optics - 804  Chemical Products Generally - 902.3  Legal Aspects - 914.1  Accidents and Accident Prevention - 961  Systems Science

Numerical data indexing:Frequency 2.20e+01Hz, Time 1.00e+00s

DOI:10.3788/gzxb20174606.0612002

Funding Details: Number; Acronym; Sponsor: 21307136; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 41575030; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 31>

Accession number:20173104014356

Title:Improved Phase Retrieval Method of High-order Optical Intensity Correlation Imaging

Authors:Gao, Xin (1); Feng, Ling-Jie (2); Lu, Chang-Ming (1); Li, Xi-Yu (1); Tang, Jia (1)

Author affiliation:(1) Key Laboratory of Space Object Measurement, Beijing Institute of Tracking and Telecommunications Technology, Beijing; 100094, China; (2) Beijing Space Information Relay and Transmission Technology Research Center, Beijing; 100094, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0610001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:To improve the imaging quality of intensity correlation method and avoid the complicated estimation and extra error, the phase retrieval procedure of high-order intensity correlation was ameliorated. Based on the quantitative discussion of the signal to noise ratio of high-order intensity correlation phase measurement, the third-order intensity correlation imaging was selected to simulate the far-field object measurement, according to which the magnifying of spectral modulus error is analyzed. To solve the problem that the spectral modulus would be magnified in the process of phase calculation, the phase closure regularization algorithm of improved phase retrieval was proposed combining phase extimation and phase measurement. Further, the effectiveness of the improved method was verified in the designed indoor experiment by comparison with previous methods of the steepest decent mthod and prior information iteration method. The results show that image error caused by the proposed method is lower than that of the previous methods, which improve the quality effectively. &copy; 2017, Science Press. All right reserved.

Number of references:19

Main heading:Iterative methods

Controlled terms:Data reduction - Errors - Fourier optics - Image reconstruction - Optical correlation - Phase measurement - Signal to noise ratio - Space surveillance

Uncontrolled terms:Indoor experiment - Intensity correlation - Iteration method - Object measurement - Optical intensities - Phase calculation - Prior information - Regularization algorithms

Classification code:656.2  Space Research - 716.1  Information Theory and Signal Processing - 723.2  Data Processing and Image Processing - 741.1  Light/Optics - 921.6  Numerical Methods - 942.2  Electric Variables Measurements

DOI:10.3788/gzxb20174606.0610001

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 32>

Accession number:20173104014362

Title:Erbium-Doped Fiber Laser Based on the Noise-like Square Wave Pulse

Authors:Zhang, Yong-Tang (1, 2)

Author affiliation:(1) Department of Computer Science and Technology, Guangdong Neusoft Institute, Foshan; Guangdong; 528225, China; (2) Institute of Cooperative Sensing and Advanced Computing Technology, Nanchang Technology Institute, Nanchang; 330003, China

Corresponding author:Zhang, Yong-Tang(1141760796@qq.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:6

Issue date:June 1, 2017

Publication year:2017

Article number:0614002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The long cavity "8" shaped erbium-doped fiber laser to produce a square wave harmonic mode-locked pulses were studied experimentally. This type has a smooth broadband pulse spectrum shown as a square wave pulse on the oscilloscope, but confirmed that the autocorrelation trace of pulse noise categories, namely noise-square wave pulse. Experiment by adjusting the laser cavity parameters, such as polarization controller and pump power, gets up to 5th order harmonic mode-locked noise-square wave pulse. Experimental results show that the noise-square-wave pulses generated in the fiber laser is not infinitely increasing the pulse energy, but under certain conditions will produce a pulse division, square wave pulse harmonic mode locking phenomenon. &copy; 2017, Science Press. All right reserved.

Number of references:24

Main heading:Mode-locked fiber lasers

Controlled terms:Erbium - Fiber lasers - Fibers - Harmonic analysis - Laser mode locking - Locks (fasteners) - Optical pumping - Pumping (laser)

Uncontrolled terms:Broadband pulse - Cavity parameters - Erbium doped fiber laser - Harmonic mode locking - Harmonic modes - Noise-like - Polarization controllers - Square wave pulse

Classification code:547.2  Rare Earth Metals - 744.1  Lasers, General - 744.4  Solid State Lasers - 921.6  Numerical Methods

DOI:10.3788/gzxb20174606.0614002

Funding Details: Number; Acronym; Sponsor: 61363047; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

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