光子学报
首 页 期刊介绍 编委会 投稿指南 期刊订阅 留言板 联系我们 English  
 
 
 
    在线投稿
    投稿指南
    投稿模板
    退修模板
    版权转让协议
 
 
    主编审稿
    专家审稿
    编辑办公
 
 
    iPad移动阅读New
    年度作者索引
    网络预发表
    最新录用
    当期目录
    过刊浏览
    点击排行
    下载排行
    Email Alert
    RSS
 
 
    高等院校
    研究院所
    期刊出版
    数据库
 
    EI收录

2017年46卷10期29篇论文

<RECORD 1>

Accession number:20174504368402

Title:Influence Path of Angular Error on Multiangle Dynamic Light Scattering Measurement

Authors:Gao, Ming-Liang (1, 2); Wang, Xue-Min (1); Shen, Jin (1, 2); Huang, Yu (1); Wang, Ya-Jing (1, 2); Li, Xiu-Feng (1)

Author affiliation:(1) School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo; Shandong; 255000, China; (2) Institute of Optoelectronic Technology, Shandong University of Technology, Zibo; Shandong; 255000, China

Corresponding author:Shen, Jin(shenjin@sdut.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1029002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The mechanism of angular error on measurement result is analysed. Then, the influence way of angular error on inversion results in two approaches, namely, weight coefficient and baseline are studied by simulation of six groups of unimodal particle size distribution system (82 nm, 104 nm, 350 nm, 431 nm, 816 nm and 865 nm) and three groups of bimodal particle size distribution system (137/601 nm, 242/750 nm and 470/895 nm) and measurement of 306/974 nm bimodal particle size distribution system with different angular error. The results show that the influence of angular error on inversion results is derived from the baseline factor and weight coefficient factor simultaneously. The influence of weight coefficient factor on peak error and performance error is much bigger than the baseline factor. There is one exception that for the unimodal narrow distribution of small particles, the influence of baseline factor on peak error is a little more than weight coefficient factor, but the influence of weight coefficient factor on performance error is bigger than baseline factor. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Particle size

Controlled terms:Angular distribution - Autocorrelation - Dynamic light scattering - Errors - Light scattering - Light transmission - Particle size analysis - Size distribution

Uncontrolled terms:Bimodal particle size distribution - Inversion problems - Inversion results - Multiangle dynamic light scattering - Narrow distribution - Particle size measurement - Scattering angles - Weight coefficients

Classification code:741.1  Light/Optics - 921  Mathematics - 922.2  Mathematical Statistics - 951  Materials Science

Numerical data indexing:Size 1.04e-07m, Size 3.50e-07m, Size 4.31e-07m, Size 8.16e-07m, Size 8.20e-08m, Size 8.65e-07m

DOI:10.3788/gzxb20174610.1029002

Funding Details: Number; Sponsor: 2017M612306; China Postdoctoral Science Foundation - Number; Acronym; Sponsor: 61601266; NSFC; National Natural Science Foundation of China - Number; Sponsor: ZR2014FL027; Natural Science Foundation of Shandong Province - Number; Sponsor: ZR2015EL039; Natural Science Foundation of Shandong Province - Number; Sponsor: ZR2016EL16; Natural Science Foundation of Shandong Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 2>

Accession number:20174504368392

Title:Single Mode Fiber SPR Refractive Index Sensor Based on U-shaped Structure

Authors:Xue, Meng (1); Liu, Kun (1); Wang, Tao (1); Chang, Peng-Xiang (1); Jiang, Jun-Feng (1); Liu, Tie-Gen (1)

Author affiliation:(1) Tianjin Optical Fiber Sensing Engineering Center, Key Laboratory of Opto-Electronics Information Technology, Tianjin University, Tianjin; 300072, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1006004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A single-mode fiber surface plasmon resonance refractive index sensor based on U-shaped structure was designed. The sensor is fabricated by coating the gold nanometer layer and the TiO<inf>2</inf>modulation layer on the surface of single-mode optical fiber whose cladding is partiallyremoved and then isbent into U-shape. The impact of different bending radius and thickness of TiO<inf>2</inf>on the sensing performance was studied by using finite element simulation software COMSOL Multiphysics. Through analyzing four different bend radii(R=0.3 cm, 0.5 cm, 0.8 cm, 1 cm), we found that with the increase of the bending radius, the surface plasmon resonance signal intensity increases and the peak shifts to shorter wavelength slightly. The performance of the sensor with different thickness of the TiO<inf>2</inf>modulation layer from 0 to 40 nm was studiedunder the condition of bending radius of 0.5 cm. With the increase of the thickness of the TiO<inf>2</inf>modulation layer, the surface plasmon resonance peak shifts to longer wavelength and the sensitivity of the peak to the analyte refractive index increases significantly. The sensitivity of the sensor in the low refractive index region (n<inf>d</inf>=1.333) reached 5 959 nm/RIU and the sensitivity of the high refractive index region (n<inf>d</inf>=1.383) reached 11 092 nm/RIU at the bending radius of 0.5cm and the thickness of the TiO<inf>2</inf>modulation layer was 40nm. Compared with the results of no modulation layer, the sensitivities increase by about doubled. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Refractive index

Controlled terms:Computer software - Dielectric films - Fiber optic sensors - Fibers - Finite element method - Gold coatings - High-k dielectric - Modulation - Multilayer films - Optical fiber fabrication  - Optical fibers - Plasmons - Refractometers - Resonance - Single mode fibers - Surface plasmon resonance - Titanium compounds - Titanium dioxide

Uncontrolled terms:Finite element simulations - High refractive index - Low refractive index - Refractive index increase - Refractive index sensor - Sensing performance - Single-mode optical fiber - Surface plasmon resonance signals

Classification code:708.1  Dielectric Materials - 723  Computer Software, Data Handling and Applications - 741.1  Light/Optics - 741.1.2  Fiber Optics - 804.2  Inorganic Compounds - 813.2  Coating Materials - 921.6  Numerical Methods - 931.1  Mechanics - 931.3  Atomic and Molecular Physics - 941.3  Optical Instruments

Numerical data indexing:Size 0.00e+00m to 4.00e-08m, Size 1.00e-02m, Size 4.00e-08m, Size 5.00e-03m, Size 8.00e-03m

DOI:10.3788/gzxb20174610.1006004

Funding Details: Number; Acronym; Sponsor: 61108070; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61227011; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61378043; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61475114; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 3>

Accession number:20174504368408

Title:Algorithm of Edge Detection Based on Bertrand Surface Model

Authors:Wang, Ning (1); Duan, Zhen-Yun (1, 2); Zhao, Wen-Hui (1); Du, Po (2); Duan, Bo-Qiang (3); Zhao, Jun-Gui (4)

Author affiliation:(1) School of Mechanical Engineering, Shenyang University of Technology, Shenyang; 110870, China; (2) Engineering Training Center, Shenyang University of Technology, Shenyang; 110870, China; (3) College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing; 210016, China; (4) Development Planning Department, China Academy of Launch Vehicle Technology, Beijing; 100076, China

Corresponding author:Zhao, Wen-Hui(zwh_sut@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1012003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Image edge detection process is problematic in that noise suppression and detail retention can not be taken into account, this prompted us to propose an edge detection algorithm based on Bertrand surface model. On the basis of determined pixel edge, selecting strip domain along edge direction as fitting area, with the Bertrand surface characteristic of normal lines at various points along generatrix line are in one plane, transforming the pixel information in fitting surface area into active coordinate of edge curve, and fitting coordinate and normalized gray value to obtain normal distance between sub-pixel edge and pixel edge for sub-pixel edge detection.Adopt the vision measurement system to experiment with the gauge block line edge, andcompared to the improved algorithm of sub-pixel edge detection based on Facet surface fitting, the results show that algorithm of edge detection based on Bertrand surface model has high location accuracy, the first grade gauge blocklinear error is within 1 &mu;m, and the multiple measurement error is -0.811 &mu;m, it also has high reliability. The oil pump body measurement demonstratesthat this algorithm can be applied to precision measurement of mechanical parts, especially suitable for measurement of center distance, bore diameter, and so on. &copy; 2017, Science Press. All right reserved.

Number of references:19

Main heading:Edge detection

Controlled terms:Computer vision - Curve fitting - Pixels

Uncontrolled terms:Edge detection algorithms - Multiple measurements - Normal distance - Precision measurement - Strip domain - Subpixel edge detection - Surface characteristics - Surface modeling

Classification code:723.5  Computer Applications - 921.6  Numerical Methods

Numerical data indexing:Size -8.11e-07m, Size 1.00e-06m

DOI:10.3788/gzxb20174610.1012003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 4>

Accession number:20174504368412

Title:Space X-ray Communication Link Modeling and Power Analysis

Authors:Su, Tong (1, 2); Li, Yao (1, 2); Sheng, Li-Zhi (1); Qiang, Peng-Fei (1, 2); Chen, Chen (1, 2); Xu, Neng (1, 2, 3); Zhao, Bao-Sheng (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) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an; 710049, China

Corresponding author:Sheng, Li-Zhi(lizhi_sheng@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1035001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:X-ray communication(Xcom) is a method which applying X-ray as carriers to transmit information in space. After the concept of Xcom was produced by Dr Keith, many institutions and scientists have conducted researches on Xcom and achieved fruitful results. However, most researches are focused on the key devices of Xcom, such as the X-ray emit source, the antenna and the detector, there is nearly no theoretical model for space X-ray communication. In this article, we focused on the power transmission process of space Xcom. To begin with, we analysised the signal channel and transmission model based on the additional gussian white noise(AWGN) model and free space attenuation, established the power transmission equation and link model. Then we analysised the error source of Xcom, established the noise model based on single photon detectors and also given the main noise sources. In other words, we can built mathematical relationship between the power of X-ray source, transmitting distance&amp;speed and bit-error-ration (BER). Finally, we testified the signal photons of Micochannel Plate(MCP) detector output against various anode voltage and modulations. The results accord well with the theoretical analysis, and the power transmission equation and BER model can explain the Xcom process well too. Based on this transmission theory, we can calculate the emit X-ray power against various transmission distance and BER level respectively. As a result, three key parameters which judging a wireless optical communication system have been given as well as the theoretical model. Simulation results showed that with a constant photons flow, Pulse Position Modulation(PPM) has a better BER level than On-Off Keying(OOK) modulation. When the transmission distance is about 10 km, in order to achieve BER less than 10<sup>-6</sup>level, the power consumption of X-ray is less than 1mW. According to the power transmission model, in order to improve the BER level of Xcom system, we need a lower dark current detector, an advanced modulation and more transmitting power. These theoretical and experiment results could provide foundations for optimizing the core parameters of XCOM system in our future works. &copy; 2017, Science Press. All right reserved.

Number of references:26

Main heading:Modulation

Controlled terms:Bit error rate - Errors - Image storage tubes - Optical communication - Particle beams - Photodetectors - Photons - Power transmission - White noise

Uncontrolled terms:Link model - Mathematical relationship - On-off keying modulations - Power equations - Power transmission equations - Single photon detection - Single-photon detectors - Wireless optical communication systems

Classification code:602.2  Mechanical Transmissions - 714.1  Electron Tubes - 717.1  Optical Communication Systems - 723.1  Computer Programming - 931.3  Atomic and Molecular Physics - 932.1  High Energy Physics

Numerical data indexing:Power 1.00e-03W, Size 1.00e+04m

DOI:10.3788/gzxb20174610.1035001

Funding Details: Number; Acronym; Sponsor: 61471357; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 5>

Accession number:20174504368389

Title:Fiber Bragg Grating Weighing Unit with Adjustable Sensitivity

Authors:Feng, Yan (1); Zhang, Jin (1); Zhang, Zhen (1); Zhang, Hua (1); Li, Yu-Long (1)

Author affiliation:(1) Key Lab for Robot &amp; Welding Automation of Jiangxi Province, School of Mechatronic Engineering, Nanchang University, Nanchang; 310031, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1006001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:An innovative weighing sensing unit using optical fiber Bragg grating sensors was developed. Based on lever cantilever with an adjustable fulcrum, the weighing range and sensitivity can be adjusted. During the differential operation of the shifts of Bragg wavelength, the shifts of Bragg wavelengths caused by the temperature fluctuation can be compensated. As a result of theoretical analysis, there is a threshold for the value of the distance between the fulcrum and the brace. When this distance equals the threshold, weighing sensitivity will be zero. Experimental results show that the average linearity is larger than 0.998 and the average relative error between the theoretical weighing sensitivity and the experimental weighing sensitivity is 6.46% within the range of 0~200 grams of force. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Weighing

Controlled terms:Bragg gratings - Fiber Bragg gratings - Fiber optic sensors - Nanocantilevers - Optical fibers

Uncontrolled terms:Adjustable ranges - Adjustable sensitivity - Average relative error - Bragg wavelength - Differential operation - Lever cantilever - Optical fiber Bragg grating sensors - Temperature fluctuation

Classification code:741.1.2  Fiber Optics - 741.3  Optical Devices and Systems - 761  Nanotechnology - 933  Solid State Physics - 943.3  Special Purpose Instruments

Numerical data indexing:Mass 0.00e+00kg to 2.00e-01kg, Percentage 6.46e+00%

DOI:10.3788/gzxb20174610.1006001

Funding Details: Number; Sponsor: 20151BAB206031; Natural Science Foundation of Jiangxi Province - Number; Acronym; Sponsor: 51665039; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 6>

Accession number:20174504368399

Title:Pressurization Actuation Based Variable Curvature Mirror Having Variable Thickness

Authors:Zhao, Hui (1); Xie, Xiao-Peng (1, 2); Xu, Liang (1); Ding, Jiao-Teng (1); Liu, Mei-Ying (1); Fan, Xue-Wu (1); Wang, Ya-Jun (1)

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

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1011002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The Finite Element Analysis(FEA)based optimization procedure aiming to obtain the optimum mirror parameters was first improved, it was found that the degradation of surface figure accuracy was mainly caused by spherical aberrations through Zernike polynomial surface fitting using 21 terms. After that, another duralumin prototype VCM (aperture 135 mm, central thickness 8mm and initial curvature radius 2 807 mm) was fabricated and tested. Because of the improvement of the fabrication process, the initial surface figure accuracy of the second mirror is superior to &lambda;/80 (632.8 nm). When a pressure of about 0.07 MPa is imposed, the saggigus variation reaches nearly 37 &mu;m and the corresponding surface figure accuracy is still superior to &lambda;/40 (632.8 nm) with spherical aberrations removed. Compared with the first prototype VCM, the performance of the second one has been improved prominently. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Aberrations

Controlled terms:Aspherics - Finite element method - Mirrors - Pressurization

Uncontrolled terms:Mirror thickness - Optical zooming - Optimization procedures - Spherical aberrations - Surface figure accuracies - Thin plate - Variable curvature mirror - Zernike polynomials

Classification code:741.1  Light/Optics - 741.3  Optical Devices and Systems - 921.6  Numerical Methods

Numerical data indexing:Pressure 7.00e+04Pa, Size 1.35e-01m, Size 2.81e+00m, Size 3.70e-05m, Size 6.33e-07m, Size 8.00e-03m

DOI:10.3788/gzxb20174610.1011002

Funding Details: Number; Acronym; Sponsor: XAB2015A09; CAS; Chinese Academy of Sciences

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 7>

Accession number:20174504368396

Title:All-optical Modulation of Metal Nano-wires Array

Authors:Wang, Mei-Ting (1); Guo, Jia (2); Wang, Mei-Yu (2); Dang, Peng (2); Tong, Kai (2)

Author affiliation:(1) College of Liren, Yanshan University, Qinhuangdao; 066004, China; (2) School of Electrical Engineering, Yanshan University, Qinhuangdao; 066004, China

Corresponding author:Tong, Kai(tongkai@ysu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1023004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:An all-optical modulator based on long-range surface plasmon resonance with metal nano-wires array is proposed. It respected for the Kerr effect to induce refractive index changes and numerically investigated respected for using the finite-difference time-domain simulation. The all-optical modulator is realized with low intensity of pump light. The diameter of metal nano-wire, the thickness of buffer dielectric layer and the intensity of pump light have a significant influence on the reflectance spectra of all-optical modulator. The coupling performance of the all-optical modulator is improved by allocating the parameters of metal nano-wire and buffer dielectric layer reasonably. The results show that the mode coupling ability of the all-optical modulator is optimal when the diameter of metal nano-wire and the thickness of buffer dielectric layer are 40 nm and 1 800 nm, respectively. There is a linear relationship between the change of reflectivity spectrum and pump intensity, which the correlation coefficient is 0.998 1. The reflectance of incident light reaches 0.82 by applying the intensity of pump light as low as 0.5 GW/cm<sup>2</sup>, which can realize all-optical modulation of optical signal to light very well. &copy; 2017, Science Press. All right reserved.

Number of references:17

Main heading:Light modulators

Controlled terms:Fiber optic sensors - Finite difference time domain method - Light modulation - Metals - Modulation - Nanowires - Optical Kerr effect - Optical signal processing - Plasmons - Pumps  - Reflection - Refractive index - Surface plasmon resonance - Time domain analysis - Wire

Uncontrolled terms:Correlation coefficient - Coupling performance - Finite difference time domain simulations - Linear relationships - Long-range surface plasmons - Reflectance spectrum - Reflectivity spectra - Refractive index changes

Classification code:535.2  Metal Forming - 618.2  Pumps - 741.1  Light/Optics - 741.1.2  Fiber Optics - 761  Nanotechnology - 921  Mathematics - 931.3  Atomic and Molecular Physics - 933  Solid State Physics

Numerical data indexing:Size 1.80e-06m, Size 4.00e-08m, Surface_Power_Density 5.00e+12W/m2

DOI:10.3788/gzxb20174610.1023004

Funding Details: Number; Acronym; Sponsor: 61172044; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 8>

Accession number:20174504368413

Title:Propagation Properties of Wave in Time-varying Dusty Plasma Based on Finite Difference Time Domain Method

Authors:Xu, Ke (1); Huang, Zhi-Xiang (1); Wu, Xian-Liang (1); Wang, Hui (1)

Author affiliation:(1) Key Laboratory of Intelligent Computing and 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:10

Issue date:October 1, 2017

Publication year:2017

Article number:1035002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The Maxwell's equation of terahertz wave in time-varying plasma is deduced based on time-domain finite difference method of auxiliary differential equation in this paper. A time-varying plasma model with dust particles was constructed by using the constitutive relation. The absorption coefficient, reflection coefficient and transmission coefficient of the dust plasma sheath with time were simulated. The numerical results show that the growth rate of electron density is easily affected by the rise time, and the reflection coefficient of the plasma decreases with the increase of the rising time. The increase of the absorption coefficient is related to reducing the rise time and frequency, increasing the electron density and the density of the dust particles.In addition, the thickness of the plasma plate, the density of the dust particles, and the electron density are direct proportional to the absorption coefficient. When the operating frequency of the wave up to 1 500 GHz, only the electron density is less than 10<sup>20</sup>m<sup>-3</sup>can pass through the plasma plate. The alteration of the effective collision frequency barely affects the reflection coefficient of the time-varying dusty plasma as the collision frequency is smaller than 3.5&times;10<sup>11</sup>rad/s. The results provide some technical support for the potential applications of spacecraft in the atmosphere of terahertz communication and dust plasma diagnostics. &copy; 2017, Science Press. All right reserved.

Number of references:22

Main heading:Time domain analysis

Controlled terms:Carrier concentration - Collisional plasmas - Differential equations - Dust - Electron density measurement - Electrons - Finite difference method - Finite difference time domain method - Maxwell equations - Plasma diagnostics  - Plasma sheaths - Plasma theory - Plasmas - Reflection - Semiconductor plasmas - Terahertz waves - Wave equations

Uncontrolled terms:Absorption co-efficient - Auxiliary differential equations - Constitutive relations - Operating frequency - Propagation properties - Terahertz communication - Time-domain finite differences - Transmission coefficients

Classification code:451.1  Air Pollution Sources - 701.1  Electricity: Basic Concepts and Phenomena - 711  Electromagnetic Waves - 921  Mathematics - 932.3  Plasma Physics

Numerical data indexing:Frequency 1.50e+12Hz

DOI:10.3788/gzxb20174610.1035002

Funding Details: Number; Sponsor: 1508085JGD03; Natural Science Foundation of Anhui Province - Number; Sponsor: 1508085QF130; Natural Science Foundation of Anhui Province - Number; Acronym; Sponsor: 61601166; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61701001; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61701003; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61722101; NSFC; National Natural Science Foundation of China - Number; Sponsor: KJ2015A202; Natural Science Foundation of Anhui Province

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 9>

Accession number:20174504368385

Title:Analysis of Heat Source of Relaxation and Quenching in Alkali Vapor Laser Pumped by Laser Diodes

Authors:Yang, Jing (1); Wang, Gao-Liang (1); Zhang, Yun-Li (1); Feng, Ya-Min (1); Li, Ji-Tao (1); Luo, Liu-Min (1)

Author affiliation:(1) College of Physics and Telecommunication Engineering, Zhoukou Normal University, Zhoukou; Henan; 466000, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1014001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A physical model of diode-pumped alkali vapor lasers, which combines the rate equations of population densities, the axial differential equations of pump and laser power, the radial differential equation of temperature, is reported in this paper. Taking into account the measured distributions of the pump and laser beam radii and the hypothetical distributions of the intensities, this model not only reproduces the observed peak temperature of 346&#8451;, 480&#8451; and 696&#8451;, which respectively correspond to pump powers of 50 W, 220 W and 370 W for the lasing condition, but also reproduces the observed peak temperature of 321&#8451;, 414&#8451; and 609&#8451; corresponding to the same pump powers for the non-lasing condition. A wide region of heat source density of quenching is observed. For the lasing condition, quenching contributes approximately 85% of the total heat energy, whereas for the no-lasing condition it occupies over 95%, showing that quenching is very important and non-ignorable in temperature calculation. &copy; 2017, Science Press. All right reserved.

Number of references:25

Main heading:Pumping (laser)

Controlled terms:Differential equations - Laser beams - Population statistics - Quenching - Temperature distribution

Uncontrolled terms:Alkali vapors - Beam radius - Diode pumped alkali vapor lasers - Heat sources - Lasing conditions - Peak temperatures - Population densities - Temperature calculation

Classification code:537.1  Heat Treatment Processes - 641.1  Thermodynamics - 744.1  Lasers, General - 744.8  Laser Beam Interactions - 921.2  Calculus

Numerical data indexing:Percentage 8.50e+01%, Percentage 9.50e+01%, Power 2.20e+02W, Power 3.70e+02W, Power 5.00e+01W

DOI:10.3788/gzxb20174610.1014001

Funding Details: Number; Acronym; Sponsor: 11547227; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 10>

Accession number:20174504368386

Title:Laser Beam Fast Automatic Alignment System for High Power Laser Facility

Authors:Li, Hong (1); Zhu, Jian-Qiang (1); Lin, Qiang (1); Yang, Peng-Qian (1); Zhang, Yan-Li (1); Liu, Dai-Zhong (1); Zhu, Bao-Qiang (1)

Author affiliation:(1) High Power Laser Physics Joint Laboratory, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai; 201800, China

Corresponding author:Zhu, Jian-Qiang(jqzhu@mail.shcnc.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1014002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to improve the efficiency of automatic alignment,combined with Ethernet, a new optical path automatic alignment control and detection scheme was describled. The proposed near-far field parallel alignment method implements forward feed back compensation based on coupling matrix and Jacobian image matrix. By introducing the image local adaptive thresholding, image binaryzation, and the fuzzy stepping motor control algorithm, the precision of near-far field image detection was improved with less processing time. The results show that the average far-field alignment error is smaller than 0.44% of spatial filter pinhole diameter, which meets the alignment system requirements(5% of spatial filter pinhole diameter), the alignment time reduces from the original 30 mins to 12 mins. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Image processing

Controlled terms:Adaptive optics - Alignment - Beamforming - Bins - Feedback control - Fuzzy control - High power lasers - Image enhancement - Jacobian matrices - Laser beams  - Optical data processing - Stepping motors

Uncontrolled terms:Adaptive thresholds - Automatic alignment - Binarizations - Coupling matrix - High power laser facility - Local adaptive thresholding - Motor control algorithms - Parallel alignments

Classification code:601.1  Mechanical Devices - 694.4  Storage - 705.3  Electric Motors - 711.2  Electromagnetic Waves in Relation to Various Structures - 723.2  Data Processing and Image Processing - 731  Automatic Control Principles and Applications - 731.1  Control Systems - 741.1  Light/Optics - 744.1  Lasers, General - 744.8  Laser Beam Interactions - 921.1  Algebra

Numerical data indexing:Percentage 4.40e-01%, Percentage 5.00e+00%, Time 1.80e+03s to 7.20e+02s

DOI:10.3788/gzxb20174610.1014002

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 11>

Accession number:20174504368407

Title:Characteristics of UV Reflection Spectra of Oil Spill Based on Bidirectional Reflectance Distribution Function

Authors:Cong, Hai-Fang (1)

Author affiliation:(1) Changchun University of Science and Technology, College of Information and Electrical Engineering, Changchun; 130022, China

Corresponding author:Cong, Hai-Fang(haifangcong@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1012002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to monitor the marine oil spill state used ultraviolet band, the Bi-Directional Reflectance Distribution Function (BRDF) measurement device which the turning radius is 1500mm and the large field of view ultraviolet imager which the working band is from 300nm to 400nm are used to study the spectral characteristics of oil spill ultraviolet reflection. The datas are measured by three kinds of oil samples through the field test, the results is showed that the uncertainty of the ultraviolet reflectance distribution function measurement device is 3.68%; There is different between the oil samples target and sea water BRDF in the ultraviolet wave range under the condition of the zenith angle of 0&deg; and 30&deg; degrees, relative azimuth angle of 0&deg; and 45&deg;. So the conclusion can be usedto monitormarine oil spill stateswiththe ultraviolet optical remote sensor from 300 nm to 380nm band. &copy; 2017, Science Press. All right reserved.

Number of references:19

Main heading:Distribution functions

Controlled terms:Marine pollution - Oil spills - Optical transfer function - Radiation detectors - Reflection - Seawater - Uncertainty analysis

Uncontrolled terms:Bidirectional reflectance distribution functions - Function measurements - Marine oil spills - Optical remote sensors - Relative azimuth angle - Spectral characteristics - UV imaging - Wide FOV

Classification code:453  Water Pollution - 453.1  Water Pollution Sources - 471.4  Seawater, Tides and Waves - 741.1  Light/Optics - 922.1  Probability Theory - 944.7  Radiation Measuring Instruments

Numerical data indexing:Size 1.50e+00m, Size 3.00e-07m to 3.80e-07m, Size 3.00e-07m to 4.00e-07m

DOI:10.3788/gzxb20174610.1012002

Funding Details: Number; Acronym; Sponsor: 41527806; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 12>

Accession number:20174504368391

Title:Coupled mechanism Analysis of strain transfer of Fiber Bragg Grating Sensors

Authors:Wu, Ru-Jun (1); Zheng, Bai-Lin (2); Chen, Tian (1); Chang, Yuan (3); Fu, Kun-Kun (3)

Author affiliation:(1) School of Mechanical Engineering, Shanghai Dianji University, Shanghai; 201306, China; (2) School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai; 200092, China; (3) School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, NSW; 2006, Australia

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1006003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Strain transfer theory of two-way coupled between the Half-plane and the Fiber Bragg Grating sensor was established, the relationship between the measured strain of the surface-bonding Fiber Bragg Grating sensor and the strain of the Half-plane was obtained. The theoretical solution, the Finite Element solution and the experimental date were compared to verify the correctness of the theory, and the relationship between the strain transfer rate and the Young's modulus of the Half-plane and the half bonding length was analyzed. The result show that the error of the theoretical solution and experimental value is very small, less than 4%, the strain transfer rate increases with the increasing both the Young's modulus of the Half-plane and the half bonding length, it has some reference value for the design and application of Fiber Bragg Grating sensors. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Fiber bonding

Controlled terms:Bragg gratings - Elastic moduli - Electric sensing devices - Fiber Bragg gratings - Fiber optic sensors - Fibers - Shear stress - Strain rate - Stresses

Uncontrolled terms:Design and application - Fiber Bragg Grating Sensors - Finite element solution - Numerical solution - Pre-strain - Strain transfer - Surface bonding - Theoretical solutions

Classification code:461.1  Biomedical Engineering - 732  Control Devices - 741.1.2  Fiber Optics - 741.3  Optical Devices and Systems - 951  Materials Science

Numerical data indexing:Percentage 4.00e+00%

DOI:10.3788/gzxb20174610.1006003

Funding Details: Number; Sponsor: 14ZZ169; E-Institutes of Shanghai Municipal Education Commission - Number; Sponsor: 15ZR1417200; Natural Science Foundation of Shanghai

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 13>

Accession number:20174504368410

Title:Design of Wavelength Tunable Lidar System

Authors:Song, Yue-Hui (1); Shi, Gao-Dong (1); Li, Shi-Chun (1); Gao, Fei (1); Wang, Yu-Feng (1); Li, Bo (1); Hua, Deng-Xin (1)

Author affiliation:(1) School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an; 710048, China

Corresponding author:Hua, Deng-Xin(dengxinhua@xaut.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1001001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A wavelength tunable lidar is designed based on OPO laser. The output wavelength of the lidar can be tunable continuously in the range of 192~2750 nm. The optical splitting system of the lidar is composed of rotatable gratings and circular apertures. By adjusting the diffraction angle of the rotatable gratings, the lidar can receive the return signal at the specific wavelength. The photomultiplier tube and InGaAs detectors are used to transform the optical signal into electric signal in the corresponding wavebands. Subsequent data acquisition and processing are performed by data acquisition system and PC. Numerical simulations are performed with the standard atmospheric model. The detection ability of the lidar in the different wavebands is verified by the simulation results. The lidar is of important significance for fine detection of microphysical properties of near-surface aerosols. &copy; 2017, Science Press. All right reserved.

Number of references:13

Main heading:Optical radar

Controlled terms:Aerosols - Data acquisition - Data handling - Diffraction gratings - Photomultipliers

Uncontrolled terms:Circular aperture - Data acquisition system - Microphysical property - Optical splitting system - Output wavelengths - Photo multiplier tube - Rotatable grating - Wavelength tunable

Classification code:714.1  Electron Tubes - 723.2  Data Processing and Image Processing - 741.3  Optical Devices and Systems

Numerical data indexing:Size 1.92e-07m to 2.75e-06m

DOI:10.3788/gzxb20174610.1001001

Funding Details: Number; Acronym; Sponsor: 41627807; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61405158; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 14>

Accession number:20174504368387

Title:Laser Damage Resistance of Engineering Ceramics

Authors:Li, Zhao-Yan (1, 2); Sun, Ming-Ying (2); Hao, Yan-Fei (2); Pang, Xiang-Yang (2); Liu, Zhi-Gang (2); Zhang, Ya-Nan (1)

Author affiliation:(1) School of Mechatronic Engineering and Automation, Shanghai University, Shanghai; 200444, China; (2) Key Laboratory of High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai; 201800, China

Corresponding author:Zhang, Ya-Nan(ynzhang@shu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1014003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Laser damage resistance of different kinds of engineering ceramics under nanosecond laser irradiation were studied and compared with those of stainless steel and aluminum alloy. The results show that the laser damage characteristics of different materials are different. The damage threshold of alumina ceramics is the highest, while the damage threshold of silicon nitride ceramics is lowest. Compared with metal materials, the damage thresholds of engineering ceramics are higher than those of stainless steel and aluminum alloy. Due to the difference of the melting point and thermal conductivity, different kinds of ceramic material have different damage morphologies. The difference of laser damage threshold of different materials was analyzed theoretically; the absorption coefficient of ceramic materials is less than metals. The absorption coefficient have an effect on the energy deposition area and heat diffusion rate influencing the evolution process of the temperature, which ultimately affect the laser damage threshold value and damage characteristics of materials.The experimental results provide guidance for the selection of mechanical support materials for high power laser devices. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Laser damage

Controlled terms:Alloy steel - Alumina - Aluminum - Aluminum alloys - Ceramic materials - High power lasers - Laser materials processing - Silicon nitride - Stainless steel - Thermal conductivity

Uncontrolled terms:Absorption co-efficient - Damage threshold - Energy depositions - Engineering ceramic - Laser damage resistance - Laser damage threshold - Laser technique - Silicon nitride ceramics

Classification code:541.1  Aluminum - 541.2  Aluminum Alloys - 545.3  Steel - 641.1  Thermodynamics - 744  Lasers - 804.2  Inorganic Compounds - 812.1  Ceramics

DOI:10.3788/gzxb20174610.1014003

Funding Details: Number; Acronym; Sponsor: 61505228; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 15>

Accession number:20174504368411

Title:Detection of Mode-2 Internal Solitary Waves in Northern Dongsha Atoll Based on High Resolution Optical Remote Sensing

Authors:Mei, Yuan (1); Wang, Jing (1); Sun, Li-Na (2); Meng, Jun-Min (2)

Author affiliation:(1) College of Information Science and Engineering, Ocean University of China, Qingdao; Shandong; 266100, China; (2) First Institute of Oceanography, State Oceanic Administration, Qingdao; Shandong; 266061, China

Corresponding author:Wang, Jing(wjing@ouc.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1001002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The GF-1 optical high resolution images have been collected to study mode-2 ISWs of northern Dongsha Atoll in the South China Sea. Based on optical remote sensing images from April to October 2014, mode-2 ISWs spatial distributed in northern Dongsha Atoll, following mode-1 ISWs. Compared with mode-1 ISWs, the crest of mode-2 ISWs was shorter and the length was about 20% to 40% of mode-1. The distance between the positive and negative peaks of mode-2 ISWs was also shorter, the length was about 10% to 50% of mode-1. The fine structure of mode-2 ISWs was investigated by high resolution optical remote sensing images, which offers the references for quantitative study of the energy propagation, fragmentation and dissipation of internal solitary waves. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Remote sensing

Controlled terms:Optical resolving power - Solitons

Uncontrolled terms:Crest lines - Internal solitary waves - Mode-2 - Optical remote sensing - Peak-to-peak

Classification code:741.1  Light/Optics

Numerical data indexing:Percentage 1.00e+01% to 5.00e+01%, Percentage 2.00e+01% to 4.00e+01%

DOI:10.3788/gzxb20174610.1001002

Funding Details: Number; Acronym; Sponsor: 6117116; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61471136; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 16>

Accession number:20174504368400

Title:Design of SpaceIllumination Environment Simulation System for Optical Remote Sensors

Authors:Du, Zhi-Qiang (1, 2); Zhang, Li-Ming (1); Chen, Hong-Yao (1); Si, Xiao-Long (1); Xu, Wei-Wei (1); Liu, Hui (1, 2); Huang, Wen-Xin (1); Zhu, Xue-Mei (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; 310027, China

Corresponding author:Zhang, Li-Ming(lmzhang@aiofm.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1011003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to test imaging performance of an optical remote sensor in complex space environment, a space environment simulation system with a wide rang irradiation and high contrast is designed, including a solar simulator and a dark target simulator. According to the radiation characteristics of sunlight and earth reflection light, a wide range of solar simulation irradiance is achieved by adjusting xenon lamp current regulation and using attenuation chips. A dark target simulator is designed to simulate the weak observation target, based on the analysis of the scattering characteristics of the material and the design of the reasonable structure. The experimental results show that the irradiance range can reach 0.4~1 260 W/m<sup>2</sup>in the 1 000 mm&times;1 000 mm irradiation area, and the irradiation uniformity can reach &plusmn;4.82%.The extinction ratio of the dark target simulator can reach 1&times;10<sup>-7</sup>.The device can solve the problem of the quantitative test of imaging performance for the dark target in the space with strong background light, which provides a reliable platform for the performance test of remote sensor. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Remote sensing

Controlled terms:Electric lamps - Irradiation - Light extinction - Simulators - Stray light

Uncontrolled terms:Environment simulation - Extinction ratios - Optical remote sensors - Radiation characteristics - Scattering char-acteristics - Solar simulator - Space environment - Target simulation

Classification code:707.2  Electric Lamps - 741.1  Light/Optics

Numerical data indexing:Surface_Power_Density 4.00e-01W/m2 to 1.26e+03W/m2

DOI:10.3788/gzxb20174610.1011003

Funding Details: Number; Acronym; Sponsor: 23003108B1716; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: CXJJ-17-M101; CAS; Chinese Academy of Sciences

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 17>

Accession number:20174504368404

Title:Photoluminescence of Bivalent and Trivalent Eu Ions Co-doped SrSO<inf>4</inf>Phosphors

Authors:Li, Jun-Shen (1); Zhai, Bao-Gai (1); Liu, Da-Qing (1); Yang, Long (1); Huang, Yuan-Ming (1)

Author affiliation:(1) School of Mathematics and Physics, Changzhou University, Changzhou; Jiangsu; 213164, China

Corresponding author:Huang, Yuan-Ming(dongshanisland@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1016001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Bivalent and trivalent Eu ionsco-doped SrSO<inf>4</inf>phosphors were synthesized via the precipitation method by using trivalent Eu ions as the sole dopant source. The crystal structure, morphology and photoluminescence of the synthesized SrSO<inf>4</inf>phosphors were investigated by the X-ray diffractometer, scanning electron microscope and spectrophotometer, respectively. It was found that the resultant SrSO<inf>4</inf>microcrystals are co-doped with both the bivalent Eu ions and the trivalent Eu ions. The typical size of the SrSO<inf>4</inf>microcrystals is in the range of 1~10 &mu;m. Under the ultraviolet excitation of 325 nm, the synthesized SrSO<inf>4</inf>microcrystals can give off strong purplish pink photoluminescence, which consists of a broad emission band centered at 379 nm and three narrow emission peaks at 575, 591 and 612 nm, respectively. The bandstructures and defect level of SrSO<inf>4</inf>are calculated with density functional theory in the framework of local density approximation, and the photoluminescence mechanisms of the bivalent and trivalent Euco-doped SrSO<inf>4</inf>are discussed in terms of the calculated bandstructures. The broad emission band centered at 379 nm can be attributed to the transition 4f<sup>6</sup>5d<sup>1</sup>&rarr; 4f<sup>7</sup>of the bivalent Eu ions in the SrSO<inf>4</inf>matrix while the three sharp emission peaks at 575, 591 and 612 nm can be assigned to the transitions of trivalent Eu ions from its excited state<sup>5</sup>D<inf>0</inf>to its ground states<sup>7</sup>F<inf>0</inf>,<sup>7</sup>F<inf>1</inf>and<sup>7</sup>F<inf>2</inf>, respectively. It has demonstrated that bivalent Eu and trivalent Euco-doped SrSO<inf>4</inf>can be utilized as an efficient purplish pink phosphors. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Cobalt compounds

Controlled terms:Crystal structure - Defect density - Density functional theory - Doping (additives) - Europium - Excited states - Ground state - Ions - Light emission - Local density approximation  - Microcrystals - Phosphors - Photoluminescence - Precipitation (chemical) - Scanning electron microscopy

Uncontrolled terms:Broad emission bands - Dopant sources - Emission peaks - Photoluminescence mechanism - Precipitation methods - SrSO4 - Ultra violet excitation - X ray diffractometers

Classification code:547.2  Rare Earth Metals - 741.1  Light/Optics - 802.3  Chemical Operations - 921  Mathematics - 922.1  Probability Theory - 931.3  Atomic and Molecular Physics - 933.1  Crystalline Solids - 933.1.1  Crystal Lattice

Numerical data indexing:Size 1.00e-06m to 1.00e-05m, Size 3.25e-07m, Size 3.79e-07m, Size 5.91e-07m, Size 6.12e-07m

DOI:10.3788/gzxb20174610.1016001

Funding Details: Number; Acronym; Sponsor: 11574036; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11604028; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 18>

Accession number:20174504368403

Title:Simulation Researchon Tip-Enhanced Raman Scattering Effect of Concave Arc Tipwith Silver-coated

Authors:Shen, Xiao-Yan (1); Liu, Xu (1); Hu, Jia-Cheng (1); Zhu, Zhen-Dong (2); Gao, Si-Tian (2); Cai, Jin-Hui (1)

Author affiliation:(1) College of Metrology &amp; Measurement Engineering, China Jiliang University, Hangzhou; 310018, China; (2) National Institute of Metrology, Beijing; 100029, China

Corresponding author:Hu, Jia-Cheng(hujiacheng@cjlu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1029003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A new tip-enhanced Raman scattering(TERS) model was established by finite difference time domain (FDTD) method, which included a conical tungsten tip with concave arc and silver-coated and a gold nanoparticle. The enhancement effect and parameter optimization of the TERS model wereinvestigated. Under 632.8 nm wavelength laser excitation, three-dimensional electromagnetic simulations were carried out for the TERS effect with different conditions, and the simulation results were presented and discussed. The results indicate that this TERS model has the maximum field enhancement factor when the incident angle is 72&deg;, the sample diameter is about 140 nm and the tip sample gap is reach 2 nm. The conclusion provides a reference for developing higher efficiency enhancingmetal tips and the Raman spectrometer with best performance. &copy; 2017, Science Press. All right reserved.

Number of references:20

Main heading:Finite difference time domain method

Controlled terms:Electric excitation - Electromagnets - Laser excitation - Raman scattering - Silver - Time domain analysis

Uncontrolled terms:Electromagnetic simulation - Enhancement effects - Enhancement factor - Field enhancement factor - Gold Nanoparticles - Parameter optimization - Raman spectrometers - Tip-enhanced Raman scatterings

Classification code:547.1  Precious Metals - 701.1  Electricity: Basic Concepts and Phenomena - 704.1  Electric Components - 741.1  Light/Optics - 744.9  Laser Applications - 921  Mathematics

Numerical data indexing:Size 1.40e-07m, Size 2.00e-09m, Size 6.33e-07m

DOI:10.3788/gzxb20174610.1029003

Funding Details: Number; Acronym; Sponsor: 51504229; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 19>

Accession number:20174504368409

Title:Design of a Micro-adjustment Mechanism Used for Star Sensor Calibration Test

Authors:Chen, Qi-Meng (1, 2); Zhang, Guo-Yu (1, 2); Zhang, Jian (1); Wang, Zhe (3); Zhang, Yu (4)

Author affiliation:(1) Department of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun; 130022, China; (2) Optical Measurement and Control Instrumentation, Jilin Province Engineering Research Center, Changchun; 130022, China; (3) Department of Science, Changchun University of Science and Technology, Changchun; 130022, China; (4) Key Laboratory of Space System Simulation, Beijing; 100000, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1012004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Aiming at the practical requirements of accurate alignment between high-precision star sensor and the test equipment in ground calibration experiments, a nanoscale five-dimensional adjustment frame for calibration of star sensors is designed. The influence of optical axis alignment error on star sensor test was analyzed in detail. In order to ensure docking accuracy, the design idea of adopting the mechanical structure of stacked type was put forward. Then, the design scheme of a two-dimensional translation module and the three-dimensional adjustment module were discussed. After that, the simulation modeling and mechanical analysis of the adjustment frame were carried out. Finally, verification experiments were conducted on the designed micro-adjustment mechanism. The testing results show that, the displacement resolution can reach 25 nm, the angle resolution can reach 0.1 arcsecond; and the stability is quite high. Therefore, the designed micro-adjustment mechanism can meet the technical indicator requirements of accurate docking between star sensor and test equipment, and it can ensure calibration credibility of the star sensor. &copy; 2017, Science Press. All right reserved.

Number of references:11

Main heading:Stars

Controlled terms:Calibration - Equipment testing

Uncontrolled terms:Calibration experiments - Displacement resolution - Mechanical structures - Micro adjustments - Model analysis - Nanometer resolutions - Practical requirements - Star sensors

Classification code:657.2  Extraterrestrial Physics and Stellar Phenomena

Numerical data indexing:Size 2.50e-08m

DOI:10.3788/gzxb20174610.1012004

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 20>

Accession number:20174504368397

Title:Design of Wavefront Controller Based on Subwavelength High-contrast Grating

Authors:Wu, Hua (1); Peng, Li (1); Yuan, Shou-Cai (1); Zhang, Wen-Bo (1); Liu, Qiao-Li (2); Dong, Jian (2)

Author affiliation:(1) College of Physics and Electronic Information, Gannan Normal University, Ganzhou; Jiangxi; 341000, China; (2) Photonic Device Research Laboratory, College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing; 100124, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1023005

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the rigorous coupled wave analysis method, the subwavelength grating wavefront control method was analyzed, three subwavelength grating structures with the function of convex lens, cone lens and blazed grating were designed. These devices achieve good focus and blazing effect. By calculating the grating transmittance at different grating thickness, grating teeth and grating groove width, the transmittances of the three wavefront manipulation devices are all above 97% after selecting the combination of suitable grating parameters. Compared the performance of silicon-based planar structural devices with conventional structural devices, the lens and the cone lens of the planar structure, the Full Width at High Maximum of the focal spot is approximately equal to that of the conventional lens and cone lens, but the peak intensity is increased to 1.64 and 2.35 times. The peak intensity of the planar relative to the conventional blazed grating is increased to 3.77 times. &copy; 2017, Science Press. All right reserved.

Number of references:14

Main heading:Diffraction gratings

Controlled terms:Lenses - Microoptics - Optical beam splitters - Wavefronts

Uncontrolled terms:Conventional lens - Full-width at high maximums - Grating parameter - High-contrast gratings - Manipulation devices - Rigorous coupled wave analysis - Sub-wave length grating - Wave front control

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

Numerical data indexing:Percentage 9.70e+01%

DOI:10.3788/gzxb20174610.1023005

Funding Details: Number; Acronym; Sponsor: 61650404; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 21>

Accession number:20174504368405

Title:Research of Band-gap Structure of the Spatial Beam Phononic Crystal

Authors:Qi, Xiao-Qiao (1); Li, Tuan-Jie (1); Zhang, Zhen (1); Tang, Ya-Qiong (1)

Author affiliation:(1) Xidian University, School of Mechano-Electronic Engineering, Xi'an; 710071, China

Corresponding author:Li, Tuan-Jie(tjli888@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1016002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The problem of band-gap structure were studied for the spatial beam phononic crystal to solve the stability of complex structure such as space truss, framae and so on. The axial, torsional, flexural and coupled vibration equations of beam element were solved by the traveling method. The dispersion equation and band-gap properties were forward obtained by the traveling wave method combined with the continuous conditions of force and displacement at the node of beam phononic crystal and Bloch theory. Genetic algorithm was used to reverse obtained the spatial beam phononic crystal structure with specified location and width of band gap by optimizing the material and structure size, taking relative bandwidth (the ratio total width and lowest angular frequency of band gap). The optimal solution was obtained by combing with engineering experience and economic benefit. This paper provided a new way for the study of band gap structure of spatial beam phononic crystal. &copy; 2017, Science Press. All right reserved.

Number of references:18

Main heading:Crystal structure

Controlled terms:Energy gap - Genetic algorithms - Phonons - Vibrations (mechanical)

Uncontrolled terms:Angular frequencies - Bandgap properties - Coupled vibrations - Dispersion equations - Force and displacements - Phononic Crystal - Spatial beams - Traveling-wave method

Classification code:931.1  Mechanics - 933.1.1  Crystal Lattice

DOI:10.3788/gzxb20174610.1016002

Funding Details: Number; Acronym; Sponsor: 51775403; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: U1537213; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 22>

Accession number:20174504368388

Title:Hole Morphology in Femtosecond Laser Drilling of Silicon

Authors:Li, Zhi-Ming (1); Wang, Xi (1); Nie, Jin-Song (1)

Author affiliation:(1) State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute, Hefei; 230037, China

Corresponding author:Nie, Jin-Song(njs7001@sina.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1014004

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In the femtosecond laser drilling of silicon material, in order to the influence of the surface plasma effect and hole geometries on the redistribution of the follow-up laser energy, the theoretical model and muti-pulse ablation experiment were established. Theoretical calculation of the damage threshold 0.21 J/cm<sup>2</sup>is in line with the experimental model measured threshold 0.20~0.25 J/cm<sup>2</sup>. When the carrier density reaches the critical value N<inf>cr</inf>, the excitation of the plasma causes the surface reflectance to rise rapidly. With a larger of laser fluence from 0.5 J/cm<sup>2</sup>to 3.0 J/cm<sup>2</sup>, ablation depth increases to about 1.1um, and while the pulse width from 150fs reduced to 50fs, ablation structure become more similar to the oval ablation profile. What's more, the effect of different hole structure on the laser beam propagation inside the micro-hole of silicon wafer is obtained by numerically using FDTD method. It's found that the position of the maximum laser intensity point would be closer to the hole enter by decreasing taper angle from 79&#8451; to 49&#8451;, which finally cause the excitation of plasma more likely. Besides, under different polarization beam irradiation, the energy distribution at the bottom of the hole induced different special ablation structures. The results show that by increasing laser fluence and decreasing pulse width, the ideal initial pore structure can be obtained so that the subsequent pulse energy is concentrated at the bottom center making the drilling efficiency higher. &copy; 2017, Science Press. All right reserved.

Number of references:21

Main heading:Light propagation

Controlled terms:Ablation - Finite difference time domain method - Laser beams - Laser excitation - Plasmas - Silicon - Silicon wafers - Ultrashort pulses

Uncontrolled terms:Drilling efficiency - Energy distributions - Experimental modeling - Non thermal effect - Surface reflectance - Theoretical calculations - Theoretical modeling - Two-temperature equation

Classification code:549.3  Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 641.2  Heat Transfer - 714.2  Semiconductor Devices and Integrated Circuits - 741.1  Light/Optics - 744.8  Laser Beam Interactions - 744.9  Laser Applications - 921  Mathematics - 932.3  Plasma Physics

Numerical data indexing:Time 1.50e-13s, Time 5.00e-14s

DOI:10.3788/gzxb20174610.1014004

Funding Details: Number; Acronym; Sponsor: 41605015; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 23>

Accession number:20174504368395

Title:Narrow-band Filter Based on Infrared Absorption Characteristics of Methane Gas

Authors:Xiong, Shi-Fu (1); Fu, Xiu-Hua (1); Liu, Dong-Mei (1); Zhang, Jing (1)

Author affiliation:(1) Department of Optics and Electric Engineering, Changchun University of Science and Technology, Changchun; 130022, China

Corresponding author:Fu, Xiu-Hua(goptics@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1023003

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:According to the requirements of sensitivity for gas detection system, based on the characteristics of methane absorption spectrum, combined with the technical experience, the technical indicators of the filter was determined. The "split technology" was used to design the gas filter for the gas filter, which reduced the film stress. The films were deposited by electron beam heating, and the process parameters were optimized according to the test results. The peak transmittance of the filter reached 85.14% at the wavelength of 7.669 &mu;m, and the full of its passband at half maximum is 59 nm, covering the methane gas absorption area. The cut-off depth is OD3 and the narrow-band filter can suppress the background noise well. &copy; 2017, Science Press. All right reserved.

Number of references:13

Main heading:Gas absorption

Controlled terms:Absorption spectroscopy - Bandpass filters - Gases - Light absorption - Methane - Thin films

Uncontrolled terms:Gas leaks - Narrow band filter - Optical thin films - Sensitivity - Splitting techniques

Classification code:703.2  Electric Filters - 741.1  Light/Optics - 802.3  Chemical Operations - 804.1  Organic Compounds

Numerical data indexing:Percentage 8.51e+01%, Size 5.90e-08m, Size 7.67e-06m

DOI:10.3788/gzxb20174610.1023003

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 24>

Accession number:20174504368394

Title:Stable Bias Control Technique for Any-point Locking in Mach-Zehnder Modulator

Authors:Hao, Chong-Zheng (1); Li, Hong-Zuo (1); Sun, Quan (1); Yang, Yue (1); Wang, Da-Shuai (2)

Author affiliation:(1) School of Electronics and Information Engineering, Changchun University of Science and Technology, Changchun; 130000, China; (2) Key Laboratory of Education Ministry Optoelectronics Measurement &amp; Control and Optical Information Transfer Technology, Changchun; 130000, China

Corresponding author:Wang, Da-Shuai(0204113@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1023002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A control algorithm to achieve working bias stability for Mach-Zehnder Modulator (MZM) is proposed. Its utilize first-order and cotangent value of Average Optical Power (AOP) with FPGA technique. Firstly, we describe the reason for stabilizing the MZM at the common point. Then, control theories for keeping the bias point at different working point are studied by numerical simulation. At last, arbitrary working point control system is built. Experiment results indicate that, the fluctuation of output average optical power is less than &plusmn;5% (within one hour) under the condition of 5 dBm laser output power (1 550 nm), 4.2 V half-wave voltage, 3 dB insertion loss and 1Gbps/1Mbps speed. The system has the ability to maintain the bias at any point in the optical power curve and improved the reliability of MZM in optical communication. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Light modulators

Controlled terms:Light modulation - Locks (fasteners) - Modulators - Optical communication - Optical devices

Uncontrolled terms:Bias control - Bias points - Bias stability - First order - Half-wave voltage - Laser output power - Mach Zehnder modulator - Optical power

Classification code:713.3  Modulators, Demodulators, Limiters, Discriminators, Mixers - 717.1  Optical Communication Systems - 741.1  Light/Optics - 741.3  Optical Devices and Systems

Numerical data indexing:Decibel 3.00e+00dB, Decibel_milliwatts 5.00e+00dBm, Size 1.55e-06m, Voltage 4.20e+00V

DOI:10.3788/gzxb20174610.1023002

Funding Details: Number; Acronym; Sponsor: 60977052; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 25>

Accession number:20174504368393

Title:Transmit-receive Isolation Analysis and Test of Cassegrain Optical Antenna

Authors:Xia, Fang-Yuan (1, 2, 3); Yang, Jian-Feng (1); Yao, Zhou-Shi (3); Li, Shuai (3); Wang, Bo (3); Chen, Xiang (3)

Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) Xi'an Institute of SPACE Radio Technology, Xi'an; 710100, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1023001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Two schemes such as single pixel signal to noise ratio and extinction ratio are used to evaluate transmit-receive isolation ability based on the practical application of the tracking and communication detector in laser communication system. A method to inhibit the back scattering light was presented which boring a hole in the secondary mirror and increasing light trap. It is derived that when aperture ratio of secondary mirror K is 0.1~0.3, it dose not affect the emission efficiency, the measured results show that the improved Cassegrain optical antenna Transmit-Receive isolation is lower than -40 dB while not affecting the emission efficiency of system, and meet the requirements of laser communication system acquiring, tracking and communication. &copy; 2017, Science Press. All right reserved.

Number of references:13

Main heading:Optical communication

Controlled terms:Antennas - Backscattering - Efficiency - Integrated optics - Laser mirrors - Light extinction - Mirrors - Optical instruments - Signal to noise ratio - Stray light

Uncontrolled terms:Aperture ratio - Cassegrain optical antennas - Emission efficiencies - Extinction ratios - Isolation - Isolation analysis - Measured results - Secondary mirror

Classification code:716.1  Information Theory and Signal Processing - 717.1  Optical Communication Systems - 741.1  Light/Optics - 741.3  Optical Devices and Systems - 913.1  Production Engineering - 941.3  Optical Instruments

Numerical data indexing:Decibel -4.00e+01dB

DOI:10.3788/gzxb20174610.1023001

Funding Details: Number; Acronym; Sponsor: 61231012; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 26>

Accession number:20174504368398

Title:Experiments of the Aberrations Correction for Membrane Fresnel Lens Based on Wavefront Sensorless

Authors:Wen, Liang-Hua (1, 2, 3, 4); Yang, Ping (1, 2); Yang, Kang-Jian (1, 2, 3); Wang, Shuai (1, 2); Chen, Shan-Qiu (1, 2); Liu, Wen-Jing (1, 2); Kong, Qing-Feng (1, 2, 3); Yang, Jing-Jing (1, 2, 3); Xu, Bing (1, 2)

Author affiliation:(1) The Key Laboratory of Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China; (2) Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; (3) University of Chinese Academy of Sciences, Beijing; 100049, China; (4) School of Physics and Electronic Engineering, Yibin University, Yibin; Sichuan; 644000, China

Corresponding author:Yang, Ping(pingyang2516@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1011001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:To improve the imaging quality of Fresnel lens, a wavefront sensorless adative optics system is used to compensate the wavefront aberrations in Fresnel lens imaging system for point source.During the aberrations correction, the stochastic parallel gradient descent algorithm is adopted to optimize the image clarity evaluation function, which is converged after dozens of correction iterations. The performance of Fresnel Lens imaging system is improved notably by adaptive optics, that the efficient radius of far-field is reduced by 43%, the corresponding second moment is 0.9975 near to the theoretical limit value 1, the image clarity and the peak value of intensity are enhanced more than once, the corresponding FWHM is upto 1.2DL, and more sufficient medium frequncies are raised up in Modulation Transfer Function (MTF). The results demonstrate that the aberrations in Fresnel lens imaging system for point source is fastly and effectively compensated by the wavefront sensorless adative optics system, which is can be applied to the space telescope due to its simple implementation structure. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Aberrations

Controlled terms:Adaptive optics - Gradient methods - Image enhancement - Imaging systems - Optical instrument lenses - Space telescopes - Stochastic systems - Wavefronts

Uncontrolled terms:Aberration correction - Evaluation function - Fresnel lens - Implementation structure - Sensorless - Stochastic parallel gradient descent algorithm - Theoretical limits - Wavefront aberrations

Classification code:741.1  Light/Optics - 741.3  Optical Devices and Systems - 746  Imaging Techniques - 921.6  Numerical Methods - 961  Systems Science

Numerical data indexing:Percentage 4.30e+01%

DOI:10.3788/gzxb20174610.1011001

Funding Details: Number; Acronym; Sponsor: 2012280; CAS; Chinese Academy of Sciences - Acronym; Sponsor: CAS; Chinese Academy of Sciences - Number; Acronym; Sponsor: 60978049; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: CXJJ-16M208; CAS; Chinese Academy of Sciences

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 27>

Accession number:20174504368390

Title:Bend Vector Sensor Based on Long Period Fiber Grating Inscribed in Mismatched Twin Core Fiber

Authors:Wang, Biao (1); Pang, Lu (1); Zhang, Wei-Gang (2); Liang, Xiao-Hong (1); Ning, Ding (1); Geng, Peng-Cheng (1)

Author affiliation:(1) Electronics Technology Group Corporation No.46 Research Institute, Tianjin; 300220, China; (2) Institute of Modern Optics, Nankai University, Tianjin; 300071, China

Corresponding author:Zhang, Wei-Gang(zhangwg@nankai.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1006002

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A long period fiber grating bend sensor was fabricated in mismatched twin core fiber by CO<inf>2</inf>laser irradiation. Theoretical analysis indicate that the fiber core located at the edge of the cladding greatly enhances the residual stress. Under CO<inf>2</inf>laser exposure, the long period fiber grating experiences a high quality. Moreover, the fiber grating is sensitive to polorization property due to the asymmetrical structure, the polarization dependent loss value of the long period fiber grating is as high as 20.8dB at the resonant wavelength of 1 553.3 nm. Sensing experiment reveals that it can distinguish the orientation of the curvature by the resonant peak showing a red or blue shift. The fiber grating experiences significant sensitivities of 2.37 nm/m<sup>-1</sup>and 1.80 nm/m<sup>-1</sup>with the micro-bending range of 0~1.235m<sup>-1</sup>for +y and -y axis directions. The proposed sensor has the advantages of simple structure and high sensitivity. It could be used in struction health monitoring applications including roads and bridges. &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Fibers

Controlled terms:Carbon dioxide - Carbon dioxide lasers - Diffraction gratings - Fiber optics - Polarization

Uncontrolled terms:Bend - CO2-laser - Long period fiber grating - Polarization properties - Twin core fiber - Vector sensors

Classification code:741.1.2  Fiber Optics - 741.3  Optical Devices and Systems - 744.2  Gas Lasers - 804.2  Inorganic Compounds

Numerical data indexing:Decibel 2.08e+01dB, Size 5.53e-07m

DOI:10.3788/gzxb20174610.1006002

Funding Details: Number; Acronym; Sponsor: 61405179; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 28>

Accession number:20174504368406

Title:Realizing the Measurement of the Crystal Electro-optic Coefficient by Photoelastic Modulation with Digital Phase Locking

Authors:Wang, Shuang (1, 2); Wang, Zhi-Bin (1, 2); Li, Xiao (1, 2); Li, Jin-Hua (1, 2); Zhang, Min-Juan (1, 2); Jing, Ning (1, 2)

Author affiliation:(1) School of Computer Science and Control Engineering, North University of China, Taiyuan; 030051, China; (2) Engineering and Technology Research Center of Shanxi Province for Opto-electric Information and Instrument, Taiyuan; 030051, China

Corresponding author:Li, Xiao(lixiaoydx@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1012001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to integrate and optimize the manipulation of photoelastic modulator and data processing in the measurement system of crystal electro-optic coefficient by photoelastic modulation, and realize a highly sensitive, fast, low cost and highly integral crystal electro-optic coefficient measurement scheme. According to the characteristics of the photoelastic modulation and modulation signal, a field programmable gate array is used to fulfill the control of the photoelastic modulator and the extraction of measuring data. The field programmable gate array provides the drive signal of the photoelastic modulator and controls the AD sampling simultaneously, and it also produces the cosine and sine reference sequences to achieve the DC term, the co-component and quadrature component of the first term, these terms are input in a computer to solve out the crystal electro-optic coefficient. A lithium niobate sample was tested, the results show that the repeatabilitiy and sensitivity of the system is 0.0016&times;10<sup>-12</sup>m/V, the measurement rate is 1 ms/ data point. Compared to the other crystal electro-optic coefficient measurement methods, the proposed method has higher measurement sensitivity and faster measurement speed, which lays the foundation for the realization of the intelligent system for measuring the the crystal electro-optic coefficient by photoelastic modulation. &copy; 2017, Science Press. All right reserved.

Number of references:14

Main heading:Modulation

Controlled terms:Chemical sensors - Crystallography - Data handling - Digital storage - Electrooptical devices - Field programmable gate arrays (FPGA) - Integrated optics - Intelligent systems - Locks (fasteners) - Logic gates  - Niobium compounds - Physical optics - Systems analysis

Uncontrolled terms:Crystal optics - Electro optic coefficient - Measurement sensitivity - Modulation signals - Phase-locking - Photo-elastic modulator - Photoelastic modulations - Quadrature components

Classification code:714  Electronic Components and Tubes - 721.2  Logic Elements - 722.1  Data Storage, Equipment and Techniques - 723.2  Data Processing and Image Processing - 723.4  Artificial Intelligence - 741.1  Light/Optics - 801  Chemistry - 933.1  Crystalline Solids - 961  Systems Science

DOI:10.3788/gzxb20174610.1012001

Funding Details: Number; Acronym; Sponsor: 11647089; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61505180; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

<RECORD 29>

Accession number:20174504368401

Title:Measurement of Short Carbon Nanotubes Based on Multi-angle Dynamic Depolarized Light Scattering

Authors:Cao, Kun-Wu (1); Yang, Hui (1); Chen, Xiao-Rong (1); Liu, Hong-Ye (1); Fan, Yan-Ping (1); Zheng, Gang (1)

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

Corresponding author:Yang, Hui(yanghui@usst.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:46

Issue:10

Issue date:October 1, 2017

Publication year:2017

Article number:1029001

Language:Chinese

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A measurement method of short carbon nanotubes by multi-angle depolarized dynamic light scattering is developed to reduce the measurement error from the inaccuracy of the scattering angle by linear fitting of the results at different angles. And the reproducibility of the measurement system is improved by this new method as well. The principle of multi-angle dynamic light scattering measurement of short carbon nanotube is studied, and an experimental measurement system is set up. The signal collecting and processing system is developed by LabVIEW based on a photon counting. The Calibration test is carried out by standard short carbon nanotubes suspensions. The measurement results of the diameter and the length of the samples at 90&deg;, 100&deg;, 110&deg;, 120&deg;, 130&deg; and 150&deg; are compared with that at the single angle (i.e. 90&deg;). It shows that the repeatability error of the diameter and the length measured by the multi-angle depolarized dynamic light scattering method are 6.27% and 6.36% respectively, and better than those of the single angle method (i.e. 13.22% and 12.45%). &copy; 2017, Science Press. All right reserved.

Number of references:15

Main heading:Light scattering

Controlled terms:Aspect ratio - Carbon nanotubes - Depolarization - Dynamic light scattering - Nanotubes - Particle size - Yarn

Uncontrolled terms:Dynamic depolarized light scattering - Dynamic light scattering measurement - Dynamic light scattering method - Measurement methods - Measurement of particles - Multi angle - Processing systems - Short carbon nanotubes

Classification code:741.1  Light/Optics - 761  Nanotechnology - 819.4  Fiber Products

Numerical data indexing:Percentage 1.24e+01%, Percentage 1.32e+01%, Percentage 6.27e+00%, Percentage 6.36e+00%

DOI:10.3788/gzxb20174610.1029001

Funding Details: Number; Acronym; Sponsor: 11572201; NSFC; National Natural Science Foundation of China - Number; Sponsor: 15ZZ072; E-Institutes of Shanghai Municipal Education Commission - Number; Acronym; Sponsor: 91634202; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2017 Elsevier Inc.

版权所有 © 2013 中国科学院西安光学精密机械研究所 保留一切权利