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2018年47卷9期35篇论文

 

<RECORD 1>

Accession number:20184806161519

Title:Infrared and Visible Image Fusion Based on Sparse Feature

Authors:Ding, Wen-Shan (1); Bi, Du-Yan (1); He, Lin-Yuan (1); Fan, Zun-Lin (1); Wu, Dong-Peng (1)

Author affiliation:(1) Aeronautics and Astronautics Engineering College, Air Force Engineering University, Xi'an; 710038, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0910002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Since the object information can not be extracted efficiently by the traditional infrared and visible image fusion algorithms, an infrared and visible image fusion method based on the non-subsampled shearlet transform and sparse structure features is proposed. Firstly, the source images are decomposed by the non-subsampled shearlet transform. Then, benefit from the advantage of principal component analysis on extracting edge and contour significant features, the fusion rule in low-frequency sub-bands coefficients are merged by using the principal component analysis-based approach. Afterwards, the sparseness based on structural information guides the fusion of high frequency subband coefficient. Finally, the inverse non-subsampled shearlet transform is employed to obtain the fused image. The experimental results demonstrate that the proposed method preserves the background information on visible image and highlights the structural information on infrared image, and improves fusion results effectively.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:38

Main heading:Image fusion

Controlled terms:Image enhancement - Infrared imaging - Inverse problems - Principal component analysis

Uncontrolled terms:Background information - Infrared and visible image - Object information - Shearlet transforms - Sparse representation - Structural information - Structure features - Subband coefficients

Classification code:723.2  Data Processing and Image Processing - 746  Imaging Techniques - 922.2  Mathematical Statistics

DOI:10.3788/gzxb20184709.0910002

Funding Details: Number; Acronym; Sponsor: 61701524; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 2>

Accession number:20184806161501

Title:Study of Titanium-doped Silicon Films Prepared by Magnetron Sputtering and Nanosecond Pulsed Laser

Authors:Wang, Kai (1); Li, Xiao-Hong (1); Zhang, Yan-Bing (1); Wen, Cai (1); Liu, De-Xiong (1)

Author affiliation:(1) Joint Laboratory for Extreme Conditions Matter Properties, School of Science, Southwest University of Science and Technology, Mianyang; Sichuan; 621000, China

Corresponding author:Li, Xiao-Hong(lixiaohong@swust.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0916005

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:An improved hyper-doping process has been developed which combines the vacuum magnetron sputtering coating and the 532 nm wavelength visible nanosecond pulse laser melting to prepare the silicon thin films of titanium doping. The characteristics of hyper-doped layer and the infrared light absorption properties of silicon thin film were studied. The X-ray photoelectron spectroscopy shows that the titanium concentration of doping layer of sample is more than 1% (the corresponding titanium atom concentration is about 5&times;10<sup>20</sup> cm<sup>-3</sup>), higher than the hyper-doping concentration of titanium in silicon. And the thickness of hyper-doping layer is more than 200 nm which improves obviously compared with traditional technology. The variable range of the concentration of titanium atoms is not more than 20%, and the atom distribution is more homogeneous. The glancing incidence X-ray diffraction pattern shows that the crystallinity of the silicon thin film layer is polycrystalline structure and about 25% around after pulsed laser melting. At the same time, the infrared light absorption measurement shows that the hyper-doping silicon thin film has high infrared absorptivity in wavelength larger than 1 100 nm. The highest infrared light absorption coefficient of sample is almost to 1.2&times;10<sup>4</sup> cm<sup>-1</sup>, which is far more than that of monocrystalline silicon. The material has obvious characteristics of sub-band absorption and shows a donor impurity energy level of the E<inf>c</inf>-0.26 eV. The Hall effect measurement shows that the thin film layer has high carrier concentration, over 8&times;10<sup>18</sup> cm<sup>-3</sup>. The Hall effect measurement shows that the thin film layer has high carrier concentration, over 8&times;10<sup>18</sup> cm<sup>-3</sup>.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:21

Main heading:Pulsed lasers

Controlled terms:Atoms - Carrier concentration - Hall effect - Light absorption - Magnetron sputtering - Melting - Molecular orbitals - Monocrystalline silicon - Semiconductor doping - Silicon  - Thin films - Titanium - Ultrafast lasers - X ray photoelectron spectroscopy

Uncontrolled terms:Absorption measurements - Glancing incidence x-ray diffractions - Hall effect measurement - Laser physics - Nanosecond pulse lasers - Nanosecond pulsed laser - Polycrystalline structure - Vacuum magnetron sputtering

Classification code:542.3  Titanium and Alloys - 549.3  Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 701.1  Electricity: Basic Concepts and Phenomena - 712.1  Semiconducting Materials - 712.1.1  Single Element Semiconducting Materials - 741.1  Light/Optics - 744.1  Lasers, General - 802.3  Chemical Operations - 931.3  Atomic and Molecular Physics

Numerical data indexing:Percentage 1.00e+00%, Percentage 2.00e+01%, Percentage 2.50e+01%, Size 1.10e-06m, Size 2.00e-07m, Size 5.32e-07m

DOI:10.3788/gzxb20184709.0916005

Funding Details: Number; Acronym; Sponsor: 11204250; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 3>

Accession number:20184806161513

Title:Experimental Analysis of Pulse Signal Detection Capability of the MCP X-ray Detector

Authors:Zhou, Qing-Yong (1, 2, 3); Sheng, Li-Zhi (4); Wei, Zi-Qing (2, 3); Liu, Si-Wei (2, 3); Chen, Chen (4); Ji, Jian-Feng (2, 3); Ren, Hong-Fei (2, 3); Ma, Gao-Feng (1); Zhang, Cai-Hong (5, 6); Sun, Peng-Fei (7)

Author affiliation:(1) Geographic Spatial Information Institute, Information Engineering University, Zhengzhou; 450052, China; (2) State Key Laboratory of Geo-information Engineering, Xi'an; 710054, China; (3) Xi'an Research Institute of Surveying and Mapping, Xi'an; 710054, China; (4) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (5) GNSS Center, Wuhan University, Wuhan; 430079, China; (6) Key Laboratory of Earthquake Geodesy, Institute of Seismology, China Earthquake Adminstration, Wuhan; 430071, China; (7) College of Geological Engineering and Surveying, Changan University, Xi'an; 710054, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0904002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:For analyzing the X-ray pulsed signal observation capability of micro-channel plate detector, a long-time experiment of micro-channel plate detectors under different radiation flux and different background noise was operated on the X-ray detector ground testing system. Meanwhile, a set of evaluation methods of pulse observation capability of X-ray detectors were established, the expressions of the signal-to-noise ratio, the correlation of pulse profile, the measurement accuracy of pulse arrival time, the minimum detectable power were derived based on the photon counting model. 8 groups of 10 000 s X-ray photon time-of-arrival dataset were received by the 20 cm<sup>2</sup> micro-channel plate detectors. Then the effective observation data were dealt with, the pulse period of each dataset was gained, the observable pulse profile was replicated, and their characteristic parameters were estimated. The experimental result shows that the micro-channel plate detector has a good capability of X-ray pulse signal observation and reconstruction, the signal-to-noise ratio, the correlation of pulse profile, the measurement accuracy of pulse arrival time of the observed pulse profile are 35.73, 88.38%, 51.53 &mu;s at the low pulse signal flux (the X-photon flux density is 0.05 ph/cm<sup>2</sup>/s), while those are 35.73, 88.38%, 51.53 &mu;s at strong background noise(the background noise is 16 times the intensity of the pulse signal). This result has revealed that the micro-channel plate detector has the observation ability of a certain faint X ray pulsar. The pulse detection capability of micro-channel plate detector is improved with the increase of the intensity of the pulse signal, the decrease of the background noise intensity and the increase of the accumulated observation time.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:24

Main heading:X ray detectors

Controlled terms:Correlation detectors - Electromagnetic wave emission - Image storage tubes - Photons - Pulsars - Signal analysis - Signal detection - Signal reconstruction - Signal to noise ratio - X ray apparatus  - X rays

Uncontrolled terms:Ground testing - Micro channel plate - Performance testing - Pulse noise - Pulse profile - Pulsed signals - X-ray pulsars

Classification code:657.2  Extraterrestrial Physics and Stellar Phenomena - 711  Electromagnetic Waves - 714.1  Electron Tubes - 716.1  Information Theory and Signal Processing - 931.3  Atomic and Molecular Physics - 932.1  High Energy Physics

Numerical data indexing:Area 2.00e-03m2, Percentage 8.84e+01%, Time 5.15e-05s

DOI:10.3788/gzxb20184709.0904002

Funding Details: Number; Acronym; Sponsor: 41304006; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 41374003; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 41374042; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 4>

Accession number:20184806161509

Title:Design of Large Field of View Space Camera Optical System Based on Freeform Surfaces

Authors:Li, Xu-Yang (1); Ni, Dong-Wei (1, 2); Yang, Ming-Yang (1, 2); Ren, Zhi-Guang (3)

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

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0922003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Freeform surface is applied to design a large field of view off-axis three-mirror optical system. The focal length of the system is 2 000 mm, the F-number is 12, and the field angle is 35&deg;&times;1&deg;. In the system, XY polynomial freeform surfaces are applied as the primary mirror and the tertiary mirror surfaces, and the primary mirror is designed as a convex surface, so that the meridional field of view reaches 35&deg;, further widening the imaging field of view. Based on the optimized XY polynomial coefficients, Matlab software is used to simulate the XY freeform surfaces of the primary mirror and the tertiary mirrors. The design results show that the optical transfer function of the system in the full field of view is better than 0.4 at 63 lp/mm, the diameter of the diffusion spot is less than one pixel size, the maximum relative distortion is less than 3%, and the wavefront error value is better than &lambda;/14. The system has high energy concentration and the imaging quality is close to the diffraction limit. It can be seen that the freeform surface has great advantages in improving the imaging field of view and imaging quality of the off-axis reflection optical system. The system overcomes the shortcoming of the small field of view in the radial direction of the conventional off-axis reflective optical system, and it is suitable for wide swath imaging.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:17

Main heading:Optical systems

Controlled terms:Diffraction - MATLAB - Mirrors - Optical design - Optical transfer function - Polynomials

Uncontrolled terms:Energy concentration - Free-form surface - Large field of views - Off-axis - Off-axis three mirror optical system - Polynomial coefficients - Reflective optical system - Relative distortion

Classification code:741.1  Light/Optics - 741.3  Optical Devices and Systems - 921  Mathematics - 921.1  Algebra

Numerical data indexing:Percentage 3.00e+00%, Size 2.00e+00m

DOI:10.3788/gzxb20184709.0922003

Funding Details: Number; Acronym; Sponsor: 61427811; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 5>

Accession number:20184806161511

Title:Checkout of External Trigger Delay in Linear Image Acquisition System

Authors:Ma, Wei-Hong (1); Tian, Hui (1); Dong, Tao (1); Ni, Jin-Ping (1)

Author affiliation:(1) Shaanxi Province Key Laboratory of Photoelectric Measurement and Instrument Technology, Xi'an Technological University, Xi'an; 710021, China

Corresponding author:Ma, Wei-Hong(cmcwlh@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0911002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Aiming at effective external trigger of high speed linear image acquisition system in practical application, a trigger delay checkout method was presented, for setting the trigger correctly and getting dynamic target image reliably. A double screens device is used to obtained velocity of dynamic target, the second screen provide trigger signal to linear image acquisition system, the time that system received trigger signal is computed according to target velocity and screens parameters; the time that system start to capture is computed by analysis of sequence linear image captured by system, then trigger delay is checked out. For a specific type linear image acquisition system with 64 000 line per second (lps), trigger delay is measured, the test results analysis show that the linear image acquisition system has external trigger delay, the average delay time is 152 &mu;s, the delay variance is 3.3 &mu;s, and the delay error is less than 1 line scan cycle. The factors leading to measurement errors and action principle are analysed, and a common method to design measurement system parameters are presented by two external trigger delay measurement precision analysis examples of line scan camera with 10 000 lps and 50 000 lps line scan frequence.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:20

Main heading:Image acquisition

Controlled terms:Image analysis - Imaging systems

Uncontrolled terms:Average delay time - Delay measurements - Design measurement systems - Line arrays - Line-scan cameras - Second screens - Target velocity - Triggers

Classification code:723  Computer Software, Data Handling and Applications - 746  Imaging Techniques

Numerical data indexing:Time 3.30e-06s, Time 1.52e-04s

DOI:10.3788/gzxb20184709.0911002

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 6>

Accession number:20184806161492

Title:Sub-10-fs Ti:sapphire Oscillator Pumped by Picosecond Laser

Authors:He, Hui-Jun (1, 2); Jiang, Jian-Wang (3); Cheng, Meng-Yao (3); Song, Jia-Jun (1, 2); Wang, Zhao-Hua (1); Fang, Shao-Bo (1); Wei, Zhi-Yi (1, 2)

Author affiliation:(1) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing; 100190, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) School of Physics and Optoelectronic Engineering, Xidian University, Xi'an; 710126, China

Corresponding author:Wang, Zhao-Hua(zhwang@iphy.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0914002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A high-power Nd:YVO<inf>4</inf> picosecond laser was developed, and the continuously mode-locking with output power of 6 W was realized under 15 W 808 nm pump power, corresponding to optical-to-optical conversion efficiency of 40%. The picoseond laser was amplified to 14 W by a single segment amplifier stage. After frequency multiplication, 7 W picosecond laser was obtained, serving as pump source of Ti:sapphire oscillator. Being pumped by 4.5 W 532 nm picosecond laser, the pulse trains output with pulse duration compressed to 9.4 fs and average power of 150 mW was obtained. By tuning the cavity length of the Ti:sapphire oscillator to decrease the difference between the two oscillators' cavity length, self-initiating Kerr-lens mode-locking was realized. The result shows that the picosecond laser pumping could trigger the Ti:sapphire oscillator mode-locking and output femtosecond pulse trains.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:17

Main heading:Mode-locked fiber lasers

Controlled terms:Electromagnetic pulse - Laser accessories - Laser mode locking - Locks (fasteners) - Optical pumping - Picosecond lasers - Sapphire - Ultrafast lasers

Uncontrolled terms:Femtosecond oscillators - Frequency multiplication - Kerr lens mode locking - Modelocking - Optical-to-optical conversion efficiencies - Pulse durations - Single segments - Ti:sapphire oscillators

Classification code:482.2.1  Gems - 701  Electricity and Magnetism - 744.1  Lasers, General - 744.7  Laser Components

Numerical data indexing:Percentage 4.00e+01%, Power 1.40e+01W, Power 1.50e-01W, Power 6.00e+00W, Power 7.00e+00W, Size 5.32e-07m, Size 8.08e-07m, Time 9.40e-15s

DOI:10.3788/gzxb20184709.0914002

Funding Details: Number; Acronym; Sponsor: 11434016; NSFC; National Natural Science Foundation of China - Number; Sponsor: 2018007; Youth Innovation Promotion Association of the Chinese Academy of Sciences - Number; Acronym; Sponsor: 61575219; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 7>

Accession number:20184806161506

Title:Design for the Phase-only FAN-OUT Grating of Orbital Angular Momentum Separation System

Authors:Yin, Xiao-Li (1); Liao, Huan-Yu (1); Wang, Yong-Jun (1); Chang, Huan (1); Cui, Xiao-Zhou (1); Lin, Jiao-Ling (1)

Author affiliation:(1) Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts and Telecommunications, Beijing; 100876, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0905002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the coordinate-transformation Orbital Angular Momentum (OAM) sorting scheme, this paper designs a phase-only FAN-OUT grating using a method based on iterative algorithm to copy beams and improve the resolution of the OAM beams sorting efficiently. This paper establishes a numerical simulation model for high-resolution sorting of OAM beams. Numerical results indicate that the energy in the spot received by the system with phase-only FAN-OUT grating is more concentrate and the minimum reduction of dispersion degree of the OAM spectrum is 0.35, the minimum reduction of the error probability is 15%. The phase-only FAN-OUT grating is advantageous for realizing high-resolution sorting of OAM beams.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:21

Main heading:Angular momentum

Controlled terms:Iterative methods - Sorting

Uncontrolled terms:Co-ordinate transformation - Dispersion degree - Error probabilities - Fan Out - Iterative algorithm - Orbital angular momentum - Phase-only - Separation systems

Classification code:921.6  Numerical Methods

Numerical data indexing:Percentage 1.50e+01%

DOI:10.3788/gzxb20184709.0905002

Funding Details: Number; Acronym; Sponsor: 61575027; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 8>

Accession number:20184806161499

Title:Luminescent Properties of Pr<sup>3+</sup> Doped LiYF<inf>4</inf> Glass Ceramics for White Light-emitting Diodes

Authors:Cao, Hui (1); Zheng, Bin (1); Gu, Zhao-Feng (1); Hu, Jian-Xu (1); Zhang, Yue-Pin (1)

Author affiliation:(1) Laboratory of Photo-Electronic Material, School of Material Science Chemical Engineering, Ningbo University, Ningbo; Zhejiang; 315211, China

Corresponding author:Zhang, Yue-Pin(zhangyuepin@nbu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0916003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:xPr<sup>3+</sup>-activated 43SiO<inf>2</inf>-23Al<inf>2</inf>O<inf>3</inf>-27LiF-17YF<inf>3</inf> (x=0.1, 0.2, 0.3, 0.4 ) (mol%) glass were synthesized by a conventional melting technique, and then annealed at 530&#8451;, 540&#8451; and 550&#8451;, respectively. Transparent LiYF<inf>4</inf>: Pr<sup>3+</sup>glass ceramics were successfully prepared. X-ray diffraction and transmission electron microscope were used to monitor the crystalline phase structure after the glass specimens were annealed at temperature increasing from 530&#8451; to 550&#8451;, the average size of nanocrystals in glass ceramics was 14&plusmn;4 nm. The UV-visible spectra were used to monitor the transparency remained at a high level. The spectral properties and lifetime of glass and glass ceramics were investigated. The parameters of LED also be investigated. Under 404 nm excitation, the glass ceramics which doped 0.3 mol Pr<sup>3+</sup>ion and heated at 550&#8451; had the highest light output intensity, when it was made into LED, it produced white light. The calculated color coordinates of the LED was located in x=0.33, y=0.35.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:33

Main heading:Fluorine compounds

Controlled terms:Activated alumina - Aluminum oxide - Glass ceramics - Light emitting diodes - Lithium compounds - Luminescence - Phase structure - Praseodymium compounds - Transmission electron microscopy - Yttrium compounds

Uncontrolled terms:Chromaticity coordinates - Crystalline phase structures - LiFY4:Pr^3+ - Luminescent property - Melting techniques - Spectral properties - White light - White light emitting diodes

Classification code:714.2  Semiconductor Devices and Integrated Circuits - 741.1  Light/Optics - 803  Chemical Agents and Basic Industrial Chemicals - 933  Solid State Physics

Numerical data indexing:Size 4.04e-07m

DOI:10.3788/gzxb20184709.0916003

Funding Details: Number; Sponsor: LY18F050006; Natural Science Foundation of Zhejiang Province

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 9>

Accession number:20184806161520

Title:Light Diffusion in Turbid Cylinder Based on Finite Element Simulation

Authors:Zhang, Shu (1); Chen, Si-Yu (1); Liu, Yu-Hong (1); Tan, Zuo-Jun (1)

Author affiliation:(1) College of Sciences, Huazhong Agricultural University, Wuhan; 430070, China

Corresponding author:Tan, Zuo-Jun(tanzuojun@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0917001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In this paper, we used finite element simulation to study the light diffusion in cylinder. The spatial reflectance of different optical methods was discussed in details. The results were in good agreement with that of Monte Carlo simulation. When &mu;<inf>s</inf>&prime;/&mu;<inf>a</inf>&ge;5, the error was less than 10% and when in the far-source zone, the error was even less than 5%. Besides the light penetration depths obtained from finite element simulation were also very close to the results of Monte Carlo simulation, which was only a little lower due to the diffusion approximation. The error was no more than 7% and decreasing with higher value of &mu;<inf>s</inf>&prime;/&mu;<inf>a</inf>. Moreover, finite element simulation results were more accurate than analytical solution. The error of analytical solution was about 10% in the far-source zone and more than 15% at the near-source zones. The calculation time of the three methods were also compared. For one simulation, it cost about 385 second for finite element simulation, 416 seconds for analytical solution and 8~9 hours for Monte Carlo simulation. The finite element simulation has better accuracy than analytical solution while has much faster calculation speed than Monte Carlo simulation. So it is an effective and promising method to solve light diffusion in cylinder or turbid with curvatures.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:28

Main heading:Finite element method

Controlled terms:Cylinders (shapes) - Diffusion - Errors - Intelligent systems - Monte Carlo methods

Uncontrolled terms:Calculation speed - Calculation time - Diffusion approximations - Finite element simulations - Light diffusion - Light penetration depth - Near sources - Optical methods

Classification code:723.4  Artificial Intelligence - 921.6  Numerical Methods - 922.2  Mathematical Statistics

Numerical data indexing:Percentage 1.00e+01%, Percentage 1.50e+01%, Percentage 5.00e+00%, Percentage 7.00e+00%, Time 2.88e+04s to 3.24e+04s, Time 3.85e+02s, Time 4.16e+02s

DOI:10.3788/gzxb20184709.0917001

Funding Details: Number; Acronym; Sponsor: 11604112; NSFC; National Natural Science Foundation of China - Number; Sponsor: 2016CFB325; Natural Science Foundation of Hubei Province

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 10>

Accession number:20184806161525

Title:Relativistic Effects in 2p Photoionization from the Excited States of Sodium Atoms

Authors:Liu, Xiao-Bin (1); Shi, Ying-Long (1); Xing, Yong-Zhong (1); Lu, Fei-Ping (1); Li, Xiang-Bing (1); Wang, Yu-Ping (1); Hu, Hong-Wei (2)

Author affiliation:(1) Department of Physics, Tianshui Normal University, Tianshui; Gansu; 741001, China; (2) Department of Physics, Shangqiu Normal University, Shangqiu; Henan; 476000, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0902001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the multi-configuration Dirac-Fock method, 2p photoionization process of sodium atoms from the initial state 2p<sup>6</sup>3p were investigated at a photon energy of 54 eV. Usually the relativistic effect has very obvious influence on atomic photoionization process. The influence of relativistic effects on the photoionization thresholds is negligible, but it can produce substantial change in the intensity distribution in photoelectron spectra, so that the spectra structures from the initial states 2p<sup>6</sup>3p(<sup>2</sup>P<inf>1/2,3/2</inf>) are completely different. In the nonrelativistic limit, as generally expected, the spectra structures from the two states are almost identical. Furthermore, this study demonstrates the information that may be obtained regarding the relativistic effects in the photoionization processes from excited states.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:23

Main heading:Atoms

Controlled terms:Excited states - Photoelectron spectroscopy - Photoelectrons - Photoionization - Photons - Relativity - Sodium

Uncontrolled terms:Cross section - Intensity distribution - Multiconfiguration Dirac-Fock - Photoelectron spectrum - Photoionization process - Photoionization threshold - Relativistic effects - Threshold

Classification code:549.1  Alkali Metals - 802.2  Chemical Reactions - 931.3  Atomic and Molecular Physics - 931.5  Gravitation, Relativity and String Theory

Numerical data indexing:Electron_Volt 5.40e+01eV

DOI:10.3788/gzxb20184709.0902001

Funding Details: Number; Acronym; Sponsor: 11464040; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11665019; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11764035; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 11>

Accession number:20184806161524

Title:Controlled Bidirectional Two-qubit Quantum Teleportation

Authors:Wang, Si-Meng (1); Zhang, Wei (1); Liao, Cong (1)

Author affiliation:(1) School of Science, Xi'an University of Posts and Telecommunications, Xi'an; 710072, China

Corresponding author:Zhang, Wei(zhangwei@xiyou.Edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0927002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to achieve controlled bidirectional quantum teleportation of two qubits, based on tensor analysis, von Neumann and Bell basis measurements, we propose criteria for assessing whether an arbitrary nine-qubit entangled state can be used as quantum channel for controlled bidirectional quantum teleportation. Using such a channel, the controller performs a von Neumann measurement, dividing the initial quantum channel into single, dual, triple and quadruple channel. In order to achieve CBQT of two qubits using the proposed criteria, taking the dual channel as an example, Alice, Bob, and the controller work together, using von Neumann measurement, Bell basis measurements, and finally unitary transformations. we verify the feasibility of the proposed standard and set out a general quantum channel selection method.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:19

Main heading:Quantum entanglement

Controlled terms:Bells - Communication channels (information theory) - Quantum communication - Quantum computers - Quantum optics - Tensors

Uncontrolled terms:Bell-basis measurements - Channel parameter - Quantum teleportation - Tensor analysis - Von Neumann measurement

Classification code:716  Telecommunication; Radar, Radio and Television - 716.1  Information Theory and Signal Processing - 722  Computer Systems and Equipment - 752.1  Acoustic Devices - 921.1  Algebra - 931.4  Quantum Theory; Quantum Mechanics

DOI:10.3788/gzxb20184709.0927002

Funding Details: Number; Acronym; Sponsor: 51402235; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 12>

Accession number:20184806161510

Title:Design and Experimental Study of ICCD Gated Pulse Source

Authors:Hu, Jun-Yu (1, 2); Pei, Cheng-Quan (1); Tian, Jin-Shou (1); Wang, Jun-Feng (1); Fang, Yu-Man (1, 2); Wen, Wen-Long (1)

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

Corresponding author:Tian, Jin-Shou(tianjs@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0911001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the microprocessor and combined with analog delay circuit and digital logic circuit, a strobe pulse source with a resolution of 5 ns, a minimum pulse width of 65 ns, a frequency up to 1 MHz, and remote control by the host computer is designed. Using this pulse source in combination with a gate power supply, the gated shutter time of the ICCD coated with a metallic conductive substrate and no metallic conductive substrate on the cathode are tested. The results show that the ICCD has a shorter turn-on time when metal substrates are plated. The corresponding equivalent circuit model and the RC equivalent equation which the opening and closing process of photocathode met are established, qualitative analysis shows that the decrease in the cathode surface resistance is the main factor to shorten the ICCD open time.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:20

Main heading:Computer circuits

Controlled terms:Comparators (optical) - Delay circuits - Electric network analysis - Equivalent circuits - Photocathodes - Pulse shaping - Remote control - Substrates

Uncontrolled terms:Conductive substrates - Digital logic circuit - Equivalent circuit model - Gate widths - ICCD - Minimum pulse widths - Pulse generation - Qualitative analysis

Classification code:703.1.1  Electric Network Analysis - 713.4  Pulse Circuits - 721.3  Computer Circuits - 731.1  Control Systems - 741.3  Optical Devices and Systems

Numerical data indexing:Frequency 1.00e+06Hz, Time 5.00e-09s, Time 6.50e-08s

DOI:10.3788/gzxb20184709.0911001

Funding Details: Number; Acronym; Sponsor: 41530422; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 13>

Accession number:20184806161494

Title:Experimental Study on the Dual-wavelength Laser Based on the Nd:YVO<inf>4</inf>/Nd:GdVO<inf>4</inf> Combined Crystal

Authors:Han, Ning (1); Hu, Miao (1, 2); Li, Peng (2, 3); Jin, Tao (1); Feng, Bing (1); Ou, Jun (1); Zhou, Xue-Fang (1); Yang, Guo-Wei (1); Lu, Yang (1); Bi, Mei-Hua (1)

Author affiliation:(1) College of Communication Engineering, Hangzhou Dianzi University, Hangzhou; 310018, China; (2) State Key Laboratory of NBC Protection for Civilian, Beijing; 102205, China; (3) Research Institute of Chemical Defense, Beijing; 102205, China

Corresponding author:Li, Peng(lipeng@sklnbcpc.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0914004

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A Dual-Wavelength Laser (DWL) based on the Nd:YVO<inf>4</inf>/Nd:GdVO<inf>4</inf> combined crystal was presented. The thermal effect and the frequency-separation tuning mechnism of the DWL were investigated. In the experiments, with fixed pumping power, when the heat sink temperature of the combined crystal increased from 5&#8451; to 40&#8451;, the frequency separation of the DWL signal decreased from 351.1 GHz to 316.1 GHz, the frequency separation decreasing rate was measured as -0.95 GHz/&#8451;. For the experimental results, it was found that the wavelength shifting of the DWL signal is mainly caused by the Emission Cross Section (ECS) spectra shifting of the laser crystals with the temperature varying, and the change of the frequency separation is caused by different ECS spectral shifting rates of the crystals. The analysis results are in good agreement with the experimental results.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:22

Main heading:Pumping (laser)

Controlled terms:Laser tuning - Microwaves - Optical pumping - Separation - Tuning

Uncontrolled terms:Dual wavelength laser - Emission cross section - Frequency separation - Heat sink temperature - Heterodying - Laser crystals - Spectral shifting - Wavelength shifting

Classification code:711  Electromagnetic Waves - 744.1  Lasers, General - 802.3  Chemical Operations

Numerical data indexing:Frequency 3.51e+11Hz to 3.16e+11Hz

DOI:10.3788/gzxb20184709.0914004

Funding Details: Number; Acronym; Sponsor: 61705055; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 14>

Accession number:20184806161496

Title:Temporal Power Profiles Remote Precise Measurement of Suppressing Frequency Modulation to Amplitude Modulation Conversion

Authors:Huang, Jia-Peng (1, 2); Fan, Wei (2); Shi, Zhi-Dong (1); Pan, Xue (2); Li, Rao (2); Lu, Xing-Hua (2); Wang, Xiao-Chao (2); Zhang, Sheng-Jia (2)

Author affiliation:(1) Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai; 200444, China; (2) National Laboratory on High Power Lasers and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai; 201800, China

Corresponding author:Fan, Wei(fanweil@siom.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0914006

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A method of remote precise measurement of laser temporal power profiles was proposed. This method used the single polarization optical fiber for laser remote transmission and combined with temporal power profile recovery algorithm where the rising edge and the top profiles of laser pulses were separated and processed respectively. The experiment of temporal power profiles remote measurement of 1 053 nm laser pulses in the front end of high power laser facility was carried out. The results show that the method effectively avoids the influence of frequency modulation to amplitude modulation on the temporal power profiles measurement, and undistorted temporal waveform after remote transmission is obtained. The calculated error introduced by this measurement method is less than 0.8% per nanosecond. The proposed method can be applied to temporal waveform remote centralized measurement in high power laser facility.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:22

Main heading:Frequency modulation

Controlled terms:Amplitude modulation - Dispersion (waves) - Fiber optics - High power lasers - Laser pulses - Nonlinear optics - Optical fibers - Polarization - Signal processing

Uncontrolled terms:AM modulations - Centralized measurements - High power laser facility - Power profile - Precise measurements - Remote transmissions - Single polarization fiber - Single polarization optical fiber

Classification code:716.1  Information Theory and Signal Processing - 741.1.1  Nonlinear Optics - 741.1.2  Fiber Optics - 744.1  Lasers, General

Numerical data indexing:Percentage 8.00e-01%, Size 1.05e-06m

DOI:10.3788/gzxb20184709.0914006

Funding Details: Number; Acronym; Sponsor: 11604350; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 15>

Accession number:20184806161493

Title:Etching Process of 980 nm Tapered Semiconductor Laser

Authors:Qiao, Chuang (1, 2); Su, Rui-Gong (2); Fang, Dan (1); Tang, Ji-Long (1); Fang, Xuan (1); Wang, Deng-Kui (1); Zhang, Bao-Shun (2); Wei, Zhi-Peng (1)

Author affiliation:(1) State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun; 130022, China; (2) Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou; Jiangsu; 215123, China

Corresponding author:Fang, Dan(fangdan19822011@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0914003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to solve the problems of bad sidewall steepness and device repetition in the traditional etching process of semiconductor laser, the etching process of 980 nm tapered semiconductor laser is optimized by means of the combination of wet etching and dry etching. The difference of wet etching solution and concentration ratio is determined through the study of mesa roughness and etching speed. The effect of inductively coupled plasma etching on the surface morphology of the damaged grooves in ridged waveguide and cavity is analyzed. The results show that the etching rate is about 7 nm/s, and the etching rate is easy to be controlled by wet etching with the ratio of NH<inf>3</inf> &bull;H<inf>2</inf>O:H<inf>2</inf>O<inf>2</inf>:H<inf>2</inf>O=1:1:50. The surface of the sample has good roughness and uniformity, the ridge waveguide and cavity etched by inductively coupled plasma have good steepness of the side wall of the groove, and there is no transverse drilling erosion.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:19

Main heading:Wet etching

Controlled terms:Ammonia - Dry etching - Inductively coupled plasma - Ridge waveguides - Semiconductor lasers

Uncontrolled terms:Cavity failure groove - Concentration ratio - Etching process - Etching rate - Etching solutions - Ridged waveguides - Side walls - Steepness

Classification code:714.3  Waveguides - 744.4.1  Semiconductor Lasers - 802.2  Chemical Reactions - 804.2  Inorganic Compounds - 932.3  Plasma Physics

Numerical data indexing:Size 9.80e-07m

DOI:10.3788/gzxb20184709.0914003

Funding Details: Number; Sponsor: 20160101255JC; Natural Science Foundation of Jilin Province - Number; Acronym; Sponsor: 61504012; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 16>

Accession number:20184806161523

Title:Measurement of Dispersion Characteristics of Atomic Medium Utilizing Mach-Zehnder Interferometer

Authors:Zhao, Fa-Gang (1); Tian, Zhuo-Cheng (1); Liu, Zhi-Wei (1); Yang, Bao-Dong (1); Zhou, Hai-Tao (1)

Author affiliation:(1) School of Physics and Electronic Engineering, Shanxi University, Taiyuan; 030006, China

Corresponding author:Zhou, Hai-Tao(zht007@sxu.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0927001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The measurement of the dispersion properties of the coherent medium by using homodyne method based on Mach-Zehnder interferometer is analyzed in theory, and then the dispersion properties of three-level Cs atoms medium in two completely opposite coherent effects, electromagnetically induced transparency and electromagnetically induced absorption, are experimentally measured. The results show that at the atomic resonance center, the signal light can pass through the medium due to reduced absorption for the electromagnetically induced transparency medium, which ensure the measurement to the effective dispersion properties information, namely normal dispersion. On the contrary, for the electromagnetically induced absorption medium, due to the strong absorption effect, only at the low atomic densities, i.e. to ensure the signal light through the medium without being fully absorbed, the anomalous dispersion properties of the medium can be measured. Furthermore, when increasing the atomic number density, the absorption of atoms to signal light is enhanced to full absorption, and the absorption spectrum width is widened, which leads to the fact that phase shift can not be effectively measured.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:28

Main heading:Absorption spectroscopy

Controlled terms:Atoms - Dispersion (waves) - Dispersions - Mach-Zehnder interferometers - Phase shift - Transparency

Uncontrolled terms:Anomalous dispersion - Atomic number density - Dispersion characteristics - Dispersion properties - Effective dispersion - Electromagnetically induced absorption - Electromagnetically-induced transparency - Strong absorptions

Classification code:741.1  Light/Optics - 741.3  Optical Devices and Systems - 931.3  Atomic and Molecular Physics - 951  Materials Science

DOI:10.3788/gzxb20184709.0927001

Funding Details: Number; Acronym; Sponsor: 61308121; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61575112; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 17>

Accession number:20184806161518

Title:Adaptive Model Update via Fusing Peak-to-sidelobe Ratio and Mean Frame Difference for Visual Tracking

Authors:Xiong, Chang-Zhen (1); Che, Man-Qiang (1); Wang, Run-Ling (2); Lu, Yan (1)

Author affiliation:(1) Beijing Key Laboratory of Urban Intelligent Control, North China University of Technology, Beijing; 100144, China; (2) College of Sciences, North China University of Technology, Beijing; 100144, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0910001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to adapt the correlation filter model to the change of the target appearance and improve the robustness and real-time performance of the correlation filter algorithm for visual tracking, an adaptive learning rate adjustment method for real-time tracking of a single-layer convolution filter is proposed,which is based on the relationship of the correlation filter response value, mean frame difference and the object movement displacement. This method selects the convolution features of a single convolution layer to train the correlation filter classifier that is used to predict the position of object, reducing the convolution feature dimension and improving the speed of visual tracking. Meanwhile it uses the fast-scale prediction method to estimate the object's scale, and adopts a sparse model update strategy. Besides, the Peak-to-Sidelobe Ratio (PSR) of convolutional response is used to estimate the credibility of the predicted location. The apparent change of the object is evaluated by combining the mean frame difference and the object movement displacement. And the learning rate of the correlation filter model update can be adjusted by these two terms adaptively, so that the change characteristics of the object can be quickly learned. The accuracy of visual tracking is improved by this method. The method is tested on the standard OTB-100 dataset. The results show that the average distance accuracy is 90.1%, which is better than the state-of-the-art algorithms in the experiment. And the average success rate is 79.2%, which is only smaller than the continuous convolution tracking algorithm(CCOT). But the average speed is 31.8 frames per second, nearly 30 times of the CCOT.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:24

Main heading:Convolution

Controlled terms:Learning algorithms - Tracking (position)

Uncontrolled terms:Correlation filtering - Frame differences - Learning rates - Model updates - Object Tracking - Peak-to-sidelobe ratio

Classification code:716.1  Information Theory and Signal Processing

Numerical data indexing:Percentage 7.92e+01%, Percentage 9.01e+01%

DOI:10.3788/gzxb20184709.0910001

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 18>

Accession number:20184806161516

Title:Numeric Analysis of Frequency-doubling of Ultrashort Pulses in Refractive-index-linear-modulating Crystals

Authors:Zhang, Liu-Yang (1); Yang, Ying (1); Qu, Yu-Qiu (2); Cheng, Guang-Zhen (1); Zhao, Zi-Jian (1); Pu, Shao-Zhi (1)

Author affiliation:(1) Department of Physics, School of Science, Harbin University of Science and Technology, Harbin; 150080, China; (2) College of Physics Science and Technology, Heilongjiang University, Harbin; 150080, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0919002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Frequency-doubling in refractive-index-linear-modulating crystals was investigated numerically. In the case of depleted-pump, changes of conversion efficiency and pulse width with crystal length and band width of phase matching were studied. With the increase of pump pulses energy, pulses are broadened resulted from the unbalanced conversion of fundamental pulses at the different position of the crystal. Due to the modulation of refractive index, there are periodic oscillations in conversion efficiency and pulse width. Subsequently, by analyzing the chirp in harmonic waves, it was found that with the increase of crystal length, the normalized chirp coefficient increase first then decrease and finally tend to 1. The maximum of the normalized chirp coefficient is governed by modulated bandwidth and intrinsic bandwidth. Finally, the effects of phase mismatching parameter on conversion efficiency and pulse width was discussed and the results showed that phase mismatching parameter y determines the location of phasing matching of central frequency. When y=0 is considered, central frequency reaches phase matching at the middle of crystals where is beneficial to improve conversion efficiency and pulse quality.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:15

Main heading:Conversion efficiency

Controlled terms:Bandwidth - Frequency doublers - Modulation - Nonlinear optics - Optical frequency conversion - Optical pumping - Phase matching - Refractive index

Uncontrolled terms:Central frequency - Chirp coefficients - Frequency-doubling - Fundamental pulse - Group velocity matching - Periodic oscillation - Phase mismatching - Refractive index modulation

Classification code:525.5  Energy Conversion Issues - 713  Electronic Circuits - 713.5  Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 716.1  Information Theory and Signal Processing - 741.1  Light/Optics - 741.1.1  Nonlinear Optics

DOI:10.3788/gzxb20184709.0919002

Funding Details: Number; Acronym; Sponsor: 61405049; NSFC; National Natural Science Foundation of China - Number; Sponsor: F2016023; Natural Science Foundation of Heilongjiang Province

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 19>

Accession number:20184806161521

Title:Method to Quantitate Parameter γ Related to Tissue Microstructure by Reflectance Measured at Microdomains Close to the Source

Authors:Wang, Xing (1); Li, Wen-Yan (1); Qiao, Yan-Qing (1); Liu, Ying (1)

Author affiliation:(1) Key Laboratory of Opt-Electronics Information Technology and Science of the Ministry of Education, School of Science, Tianjin University, Tianjin; 300072, China

Corresponding author:Liu, Ying(liuying56@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0917002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A method of measuring tissue microstructure parameter &gamma; with optical fiber probe was presented. Based on spherical fractal model of Intralipid, the diffuse reflection data of the photon through Intralipid was obtained using Monte Carlo simulation, and the function relationship between diffuse reflectance and &gamma; was established by non-linear fitting of the data. Research shows that the diffuse reflectance is linearly related to the dimensionless reduced scattering coefficient &mu;<inf>s</inf>&prime;&straightphi; (&straightphi; is selecting aperture) and its slope is a quadratic function of &gamma;. In the experiment, the diffuse reflectance of different &mu;<inf>s</inf>&prime;&straightphi; was obtained with Intralipid, the linear relationship between diffuse reflectance and &gamma; was verified. The &gamma; of 2.04, the fractal dimension of 2.93 and the anisotropy factor of 0.816 were obtained by the slope, which were in good agreement with the parameters in literature, verifying the feasibility of the proposed method.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:29

Main heading:Monte Carlo methods

Controlled terms:Fractal dimension - Intelligent systems - Microstructure - Optical fibers - Reflection - Tissue

Uncontrolled terms:Diffuse reflectance - Fractal model - Function relationships - Linear relationships - Optical parameter - Reduced scattering coefficients - Tissue microstructures - Tissue optic

Classification code:461.2  Biological Materials and Tissue Engineering - 723.4  Artificial Intelligence - 741.1.2  Fiber Optics - 921  Mathematics - 922.2  Mathematical Statistics - 951  Materials Science

DOI:10.3788/gzxb20184709.0917002

Funding Details: Number; Acronym; Sponsor: 60278004; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 20>

Accession number:20184806161504

Title:Ultra-wide Two-dimensional Beam Steering by Silicon Integrated Optical Phased Array

Authors:Li, Zhong-Yu (1, 2, 3); Zhang, Ling-Xuan (1, 2, 3); Zeng, Chao (1, 2, 3); Du, Shu-Jian (1, 2, 3); Ge, Zhi-Qiang (1, 2, 3); Xie, Peng (1, 2, 3); Zhang, Qi-Hao (1, 2, 3); Wang, Guo-Xi (1, 2, 3); Sun, Xiao-Chen (1, 2); Mi, Lei (1, 2); Zhang, Wen-Fu (1, 2, 3)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) China-UK Joint Research Center of Micro/Nano Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China

Corresponding author:Zhang, Wen-Fu(wfuzhang@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0913003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:An alternative approach to realize 2D beam steering with ultra-wide range by silicon integrated optical phased array is proposed. A dot matrix scanning method, using the phase control and grating emitters with different periods, is conceived to design the optical phased array device without the requirement of tunable lasers. Simulations demonstrate an ultra-wide steering range up to 120&deg;&times;100&deg;, together with over 16&times;400 resolvable points by using a single-wavelength laser. Moreover, the designed optical phased array device demands only a part of active elements working simultaneously, which benefits to reduce the electrical power consumption. The proposed approach provides a promising solution for wide-angle, low-cost, and low-power consumption 2D beam steering devices, especially suitable for solid-state light detection and ranging systems.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:26

Main heading:Optical radar

Controlled terms:Electric power utilization - Optoelectronic devices - Silicon on insulator technology

Uncontrolled terms:Beam steering devices - Beam-steering - Electrical power consumption - Grating - Light detection and ranging systems - Low-power consumption - Optical phased arrays - Single wavelength lasers

Classification code:706.1  Electric Power Systems - 714.2  Semiconductor Devices and Integrated Circuits - 741.3  Optical Devices and Systems

DOI:10.3788/gzxb20184709.0913003

Funding Details: Number; Acronym; Sponsor: 61405243; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61475188; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61705257; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 21>

Accession number:20184806161512

Title:Method of Object Pose Measurement Based on Single PSD

Authors:Huang, Zhan-Hua (1); Zhang, Ya-Nan (1); Fang, Shi (1); Cai, Huai-Yu (1)

Author affiliation:(1) Key Laboratory of Opto-electronics Information Technology, Ministry of Education, School of Precision Instrument and Opto-electronics Engineering, Tianjin; 300072, China

Corresponding author:Zhang, Ya-Nan(yananzhang0310@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0904001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A pose measurement method based on single position sensitive detector was proposed in order to overcome the limitation of image sensor response and precision and the defect of corresponding image processing algorithm. First, a coordinate system was established while the origin was based on detector photosensitive surface center and space attitude angle was defined in this coordinate system. Then eight infrared LED light sources of plane object glowed in circle were defined as detecting target and they were imaged on the active area of the positive sensitive detector via optic system. After the electricity digital signal had been processed by the program, using two-dimensional image coordinate of feature points and specific relative position relation of light sources, the position and attitude information of object in sensor coordinate system would be gained finally. Before the measurement experiment, the stability of the system was verified. Experimental results show that measurement distance of this method is 10 m in the depth direction within the detectable field angle of 16.3&deg; while the maximum absolute error is 36.2 mm. The maximum position measurement mean absolute deviation in other direction is 7.1 mm and angle measurement error is higher than 2&deg;. This method is simple while real-time frequency of measurement could achieve 100 Hz and it could meet the real-time requirements in pose measurements commendably.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:18

Main heading:Image processing

Controlled terms:Computerized tomography - Light emitting diodes - Optical data processing - Optical sensors - System stability

Uncontrolled terms:Infrared leds - Plane objects - Pose measurement - Position-Sensitive Detectors - Single sensor

Classification code:714.2  Semiconductor Devices and Integrated Circuits - 723.2  Data Processing and Image Processing - 723.5  Computer Applications - 741.3  Optical Devices and Systems - 961  Systems Science

Numerical data indexing:Frequency 1.00e+02Hz, Size 1.00e+01m, Size 3.62e-02m, Size 7.10e-03m

DOI:10.3788/gzxb20184709.0904001

Funding Details: Number; Acronym; Sponsor: 61475113; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 22>

Accession number:20184806161505

Title:Usage of Additive for the Improvement of the Filling Effect during Filling the Grating Structure of the Nanoimprint Stamp

Authors:Zheng, Yong-Guang (1); Zhang, Ran (1); Liu, Ze (1); Chu, Jin-Kui (1)

Author affiliation:(1) School of Mechanical Engineering, Dalian University of Technology, Microsystem Research Center, Dalian; Liaoning; 116023, China

Corresponding author:Zhang, Ran(zhangran@dlut.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0905001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to improve the voids phenomenon during filling the high-aspect-ratio nanograting structures using electroforming process, this paper uses the electrostatic adsorption principle of Janus green B molecule to eliminate the process defect by adding the leveling agent JGB to the electroforming bath. This paper completes the replication of nickel nanoimprint stamp on the flexible substrate via nanoimprint technology and electroforming process. In this process, the nanograting structures on the master silicon stamp are transferred to a polymer substrate using the hot embossing process to obtain soft template for embossing firstly; then, a seed layer of nickel is deposited on the polymer substrate nanostructure surface using sputtering process. The nanograting sructures are filled and the back plane of the replic is electroformed by electroforming process. Finally, the electroformed part and polymer are separated. Based on this process, a nickel nanoimprint stamp with six nano-grating areas of 1.3 mm&times;1.3 mm size, 201 nm pitch, 98 nm linewidth and 104 nm depth was replicated successfully. Compared with silicon master stamp, the error of the replicated stamp's feature size is whthin 5%, the result shows good correlation between the dimensions of the replicated stamp's features and the corresponding master stamp's features. The pitch of the replicated stamp with grating structures has no error, the error of the linewidth is whthin 2% after hot-pressing process, the test result demonstrate that the mechanical strength of the replica is sufficient for the hot embossing process.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:16

Main heading:Electroforming

Controlled terms:Aspect ratio - Diffraction gratings - Electrochemistry - Electrometallurgy - Electrostatics - Errors - Filling - Hot pressing - Nickel - Polymers  - Sheet molding compounds - Substrates

Uncontrolled terms:Electrostatic adsorption - High aspect ratio - Janus green b - Nano-imprint - Nanograting

Classification code:531.1  Metallurgy - 548.1  Nickel - 691.2  Materials Handling Methods - 701.1  Electricity: Basic Concepts and Phenomena - 741.3  Optical Devices and Systems - 801.4.1  Electrochemistry - 815.1  Polymeric Materials - 816.1  Processing of Plastics and Other Polymers

Numerical data indexing:Percentage 2.00e+00%, Percentage 5.00e+00%, Size 1.04e-07m, Size 2.01e-07m, Size 9.80e-08m

DOI:10.3788/gzxb20184709.0905001

Funding Details: Number; Acronym; Sponsor: 51505062; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 51675076; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 23>

Accession number:20184806161507

Title:Design for Mid-range Diffraction Multifocal Intraocular Lens

Authors:Li, Ji (1); Xue, Chang-Xi (1)

Author affiliation:(1) School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun; 130022, China

Corresponding author:Xue, Chang-Xi(xcx272479@sina.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0922001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The Liou-Brennan (L-B) eye model is constructed using the optical design software ZEMAX. The material of Intraocular Lens (IOL) is hydrophobic acrylate. A multifocal intraocular lens with a diffractive surface on the anterior surface and an aspherical surface on the anterior surface is designed. The design uses 0th order and +1 order of diffraction. When the object is in different positions, different diffraction orders play a role. For the designed IOL, the additional optical power is 1.66 D, the optical powers of the two focal points are correspond to 20 D and 21.66 D respectively. The establishment of small additional power aims to focus on optimizing the optical quality of the intraocular lens at the mid-distance. Firstly, the diffraction efficiency of the diffractive surface is calculated based on the theory of diffractive optics. The optical parameters of the diffractive surface and the aspherical surface is obtained by ZEMAX optical design software. Then the phase structure and the actual surface profile of the diffractive surface are simulated by MATLAB simulation software. Finally, The designed IOL is processed by a single point diamond lathe. According to the measured optical Modulation Transfer Function (MTF) The optical quality of the designed IOL is analyzed and the correctness of the additional optical power is verified by the measured defocus curve. The design meets the optical modulation transfer function (MTF) at 50 lp/mm greater than 0.3, which provides better visual clarity for cataract patients for different distances. The new type of intraocular lens uses in the working distance of 75.3 cm, providing theoretical and experimental basis for the application of small additional power intraocular lens.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:18

Main heading:Intraocular lenses

Controlled terms:Aspherics - Diffraction - Lenses - Light modulation - MATLAB - Optical design - Optical signal processing - Optical transfer function - Phase structure - Software design  - Transfer functions

Uncontrolled terms:Aspherical surface - Diffraction orders - Diffractive surfaces - Geometric optics - Matlab simulations - Optical Design Software - Zemax - Optical qualities - Optical-design software

Classification code:723.1  Computer Programming - 741.1  Light/Optics - 741.3  Optical Devices and Systems - 921  Mathematics - 933  Solid State Physics

Numerical data indexing:Size 7.53e-01m

DOI:10.3788/gzxb20184709.0922001

Funding Details: Number; Sponsor: 20150101062JC; Natural Science Foundation of Jilin Province

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 24>

Accession number:20184806161502

Title:Low Side Lobe On-chip Two Dimensional Optical Phased Array Based on the Hill Climbing Algorithm

Authors:Du, Shu-Jian (1, 2, 3); Zhang, Ling-Xuan (1, 2, 3); Wang, Guo-Xi (1, 2, 3); Li, Zhong-Yu (1, 2, 3); Zhang, Qi-Hao (1, 2, 3); Xie, Peng (1, 2, 3); Li, Yan (1); Mi, Lei (1); Sun, Xiao-Chen (1, 2); Zhang, Wen-Fu (1, 2, 3)

Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China; (3) China-UK Joint Research Center of Micro/Nano Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an; 710119, China

Corresponding author:Zhang, Wen-Fu(wfuzhang@opt.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0913001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A two-stage directional coupler structure is proposed to realize the two dimensional optical phased array, and a distinctive C-bend waveguide is designed for thermal regulation as optical phase shifter of array element. A method that compresses far field side lobes caused by high-order interference for sparse on-chip optical phased arrays is presented. Hill climbing algorithm is adopted to optimize the uniform antenna spacing and make it become non-uniform, which will greatly mitigate constructive interference conditions and then compress far field side lobes. Using finite-difference time-domain method to simulate the sparse optical grating coupler array designed at 1 310 nm wavelength showing that this optimization can realize a -6~-7 dB ratio of side lobe and main lobe.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:23

Main heading:Time domain analysis

Controlled terms:Antenna phased arrays - Antennas - Diffraction gratings - Finite difference time domain method - Optical waveguides - Optimization - Silicon photonics - Wave interference

Uncontrolled terms:Antenna spacings - Constructive interference - Hill climbing algorithms - Optical grating coupler - Optical phase shifters - Optical phased arrays - Side lobes - Thermal regulation

Classification code:741.3  Optical Devices and Systems - 921  Mathematics - 921.5  Optimization Techniques

Numerical data indexing:Size 1.31e-06m

DOI:10.3788/gzxb20184709.0913001

Funding Details: Number; Acronym; Sponsor: 61405243; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61475188; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 61705257; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 25>

Accession number:20184806161500

Title:Preparation and Optoelectronic Properties of Large-scale MAPbI<inf>3</inf> Single Crystals

Authors:Zhang, Chan-Chan (1, 2); Zhang, Fang-Hui (1); Ding, Li-Ping (1); Zhu, Xiao-Ting (2); Li, Rong-Jin (2)

Author affiliation:(1) Shaanxi Province Flat Panel Display Technology Engineering Research Center, College of Electrical and Information Engineering, Shaanxi University of Science &amp; Technology, Xi'an; 710071, China; (2) Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry and School of Science, Tianjin University, Tianjin; 300072, China

Corresponding author:Zhang, Fang-Hui(zhangfanghui@sust.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0916004

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A large size (about 150 &mu;m) high quality MAPbI<inf>3</inf> single crystals have been grown by modifying the surface of the substrate to control the nucleation position. Furthermore, the growth factors of PbI<inf>2</inf> crystals was studied systematically, mainly including substrate temperature, flow rate of carrier gas, time effect. The results showed that the best conditions for the crystal growth correspond to 350&#8451;, 20 sccm and 20 min. In addition, the perovskite single crystalline was measured by XRD when exposed to air for 50 days or more. Although the characteristic peaks were different in size, the crystal did not change as a whole. By analyzing the optoelectronic properties of device, we found that the switch ratio of device is up to 10<sup>4</sup>, and its responsivity is 3.8&times;10<sup>4</sup> A/W. In addition, the device shows a fast response (rise time: 0.03 s; fall time: 0.15 s). The above shows that our developed MAPbI<inf>3</inf> single crystal photodetector will have a very good application in the field of optoelectronics.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:26

Main heading:Iodine compounds

Controlled terms:Layered semiconductors - Lead compounds - Perovskite - Photodetectors - Photons - Single crystals

Uncontrolled terms:Characteristic peaks - Fast response - High quality - Large scale - Optoelectronic properties - Responsivity - Single-crystalline - Substrate temperature

Classification code:482.2  Minerals - 931.3  Atomic and Molecular Physics - 933.1  Crystalline Solids

Numerical data indexing:Age 1.37e-01yr, Size 1.50e-04m, Time 1.20e+03s, Time 1.50e-01s

DOI:10.3788/gzxb20184709.0916004

Funding Details: Number; Sponsor: 2016JQ6022; Natural Science Foundation of Shaanxi Province - Number; Acronym; Sponsor: 61674116; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 26>

Accession number:20184806161491

Title:Passively Mode-locked Ytterbium-doped Fiber Laser Based on MoO<inf>3</inf> as Saturable Absorber

Authors:Jiang, Jun-Lin (1); Yue, Wen-Jie (1); Wang, Wei-Qi (2); Ding, Yi-Chen (1); Wu, Bo (1); Shen, Yong-Hang (1)

Author affiliation:(1) State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou; 310027, China; (2) School of Materials Science &amp; Engineering, Zhejiang University, Hangzhou; 310027, China

Corresponding author:Shen, Yong-Hang(physyh@zju.edu.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0914001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A MoO<inf>3</inf> saturable absorber based on Yb-doped mode-locked fiber laser which can operate in both continuous wave and Q-switched mode-locked regimes was reported. A stable continuous wave mode-locked pulse train at a repetition rate of 17 MHz was achieved by using a ring cavity configuration at 95 mW incident pump power, the pulse width, central wavelength and 3 dB spectral bandwidth are 130 ps, 1 067.06 nm and 0.27 nm. Stable Q-switched mode-locked pulse train occurred at 280 mW incident pump power. As the pump power varied from 280 mW to 400 mW, the repetition rate of Q-switched envelope varied from 26.51 to 48.7 kHz, and the width of Q-switched envelope varied from 14.6 &mu;s to 4.1 &mu;s, the pulse width and the central wavelength remained invariant. The 3 dB spectral bandwidth was 0.62 nm.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:19

Main heading:Mode-locked fiber lasers

Controlled terms:Bandwidth - Fiber lasers - Fibers - Fluorine compounds - Lasers - Molybdenum oxide - Optical pumping - Passive mode locking - Pulse repetition rate - Q switching  - Saturable absorbers - Ytterbium - Ytterbium compounds

Uncontrolled terms:Continuous wave modes - Mode-locked - MoO3 - Passively mode-locked - Passively mode-locked fiber lasers - Q-switched envelopes - Yb-doped - Ytterbium-doped fiber lasers

Classification code:547.2  Rare Earth Metals - 716.1  Information Theory and Signal Processing - 744  Lasers - 804  Chemical Products Generally

Numerical data indexing:Decibel 3.00e+00dB, Frequency 1.70e+07Hz, Frequency 2.65e+04Hz to 4.87e+04Hz, Power 2.80e-01W, Power 2.80e-01W to 4.00e-01W, Power 9.50e-02W, Size 2.70e-10m, Size 6.20e-10m, Size 6.71e-08m, Time 1.30e-10s, Time 1.46e-05s to 4.10e-06s

DOI:10.3788/gzxb20184709.0914001

Funding Details: Number; Acronym; Sponsor: 11304277; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 27>

Accession number:20184806161514

Title:Echo of the Optical Imaging System under Different Extent of Damage to CCD

Authors:Zhang, Ming-Xin (1); Nie, Jin-Song (1); Dou, Xian-An (1); Sun, Ke (1)

Author affiliation:(1) State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei; 230037, China

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

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0904003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The cat's eye echoes model of the optical imaging system under different damage conditions was established and the influence of the damage to the charge coupled device layers on the cat's eye echo power was analyzed. Based on this, the corresponding relationship between the echo power of the cat's eye and the damage degree of the CCD was established and verified by experiments. The results show that the field intensity is the strongest in the center of cat's eye echo which is from imaging optics system, and the power of the echo increases dramatically and then decrease steeply and decrease slowly with the damage degree more serious. The damaged status of CCD can be judged according to this rule. The study results have certain reference value for monitoring the damage degree of CCD in real time in the far field.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:20

Main heading:Optical image storage

Controlled terms:Charge coupled devices - Imaging systems

Uncontrolled terms:Degree of damages - Different damages - Echo model - Far field - Field intensity - Optical imaging system - Reference values - Variation of echo power

Classification code:714.2  Semiconductor Devices and Integrated Circuits - 722.1  Data Storage, Equipment and Techniques - 746  Imaging Techniques

DOI:10.3788/gzxb20184709.0904003

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 28>

Accession number:20184806161517

Title:Controlling Optical Solitions in Self-focusing Kerr Medium by Adding Potential Barrier (Trap)

Authors:Li, Shu-Qing (1); Qiao, Shi-Zhu (1); Cheng, Yong-Xi (1); Yan, Yi-Wei (1); Ma, Hui-Lian (1)

Author affiliation:(1) Department of Science, Taiyuan Institute Technology, Taiyuan; 030008, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0919003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to control solitons in Kerr medium, based on Schrodinger equation, the optical soliton transmission in nonlinear self-focusing Kerr medium, after adding Gaussian-type potetial barrier, Gaussian-type potetial trap, Scarf-&#8545; barrier (trap) and periodic potential barrier (trap), was studied by fast Fourier transform numerical simulation. The soliton can be controlled by changing the height (depth) of potential barrier (trap), the width of the gaussian-type barrier (trap) and Scarf-&#8545;barrier (trap), or the period of the periodic potential barrier (trap). There are different phenomena in optical soliton transmission, such as tunneling, cyclical swings, linear transmission, division and so on, by selecting the different parameters. The study is available for cotrolling the soliton and optical switch and photocontrol.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:21

Main heading:Nonlinear optics

Controlled terms:Computer simulation - Fast Fourier transforms - Gaussian distribution - Light transmission - Nonlinear equations - Numerical models - Schrodinger equation - Solitons

Uncontrolled terms:Linear transmission - Nonlinear self-focusing - Optical soliton transmission - Periodic potentials - Photocontrol - Potential barriers - Potential trap - Self-focusing

Classification code:723.5  Computer Applications - 741.1  Light/Optics - 741.1.1  Nonlinear Optics - 921  Mathematics - 921.3  Mathematical Transformations - 922.1  Probability Theory

DOI:10.3788/gzxb20184709.0919003

Funding Details: Number; Acronym; Sponsor: 11647034; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11747098; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 29>

Accession number:20184806161495

Title:Timing Jitter in Pulsed Injection Locking of a Passively Mode-locked Semiconductor Laser

Authors:Xu, Yu-Lan (1, 2); Lin, Zhong-Xi (1); Lin, Qi (1); Chen, Jing-Yuan (1, 2); Su, Hui (1)

Author affiliation:(1) Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou; 350002, China; (2) University of Chinese Academy of Sciences, Beijing; 100049, China

Corresponding author:Su, Hui(huisu@fjirsm.ac.cn)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0914005

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The effects of injection locking on the timing-jitter noise properties of a passively mode locked semiconductor laser are investigated theoretically via a set of simplified soliton perturbation equations. We find that, with injection coupling coefficient of 10<sup>-3</sup> ps<sup>-1</sup>, the timing-jitter noise of the slave mode-locked laser can be reduced from a few picoseconds (3.83 ps) to a few femtoseconds in the frequency range from 100 kHz to 10 GHz. We also discuss the impacts of the steady state phase difference between the injection and slave pulses, coupling coefficient, and linewidth enhancement factor on the timing-jitter noise. Calculations show that timing jitter is insensitive to the phase difference while coupling coefficient has a strong effect on the timing jitter, and a smaller linewidth enhancement factor leads to better timing jitter performance.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:16

Main heading:Injection lasers

Controlled terms:Mode-locked fiber lasers - Passive mode locking - Pulsed lasers - Semiconductor lasers - Timing circuits - Timing jitter

Uncontrolled terms:Coupling coefficient - Injection-locking - Jitter performance - Linewidth enhancement factor - Mode-locked laser - Passively mode-locked - Passively mode-locking - Soliton perturbation

Classification code:713.4  Pulse Circuits - 744.1  Lasers, General - 744.4.1  Semiconductor Lasers

Numerical data indexing:Frequency 1.00e+05Hz to 1.00e+10Hz, Time 3.83e-12s

DOI:10.3788/gzxb20184709.0914005

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 30>

Accession number:20184806161515

Title:Transmission of Multipole Solitons in Parity-Time Symmetric Scarff Potentials

Authors:Hu, Su-Mei (1); Zhong, Ting-Ting (1); Wu, Hong-Mei (1); Zhou, Qing-Yun (1); Chen, Hai-Bo (1)

Author affiliation:(1) Department of Physics, Guangdong University of Petrochemical Technology, Maoming; Guangdong; 525000, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0919001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:The existence and stability of dipole and tripole solitons in Parity-Time(PT) symmetric Scarff complex potentials are investigated, including linear case, and self-focusing and self-defocusing nonlinear cases. For linear case, the PT-breaking points, eigenvalues and multipole linear modes for different modulated depths of PT symmetry Scarff complex potential are obtained numerically. For nonlinear cases, the existence and stability of multipole solitons are studied in self-focusing and self-defocusing media. For a fixed modulated depth, the eigenvalue for multipole linear modes is equalt to the critical propagation constant b<inf>c</inf> of multipole solitons existence. Multipole solitons are stable with the propagation constants close to b<inf>c</inf> both for self-focusing and self-defocusing nonlinearities.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:20

Main heading:Solitons

Controlled terms:Eigenvalues and eigenfunctions - Focusing

Uncontrolled terms:Complex potentials - Eigenvalues - Existence and stability - Linear modes - Multipoles - Parity-time symmetries - Propagation constant - Self-defocusing

DOI:10.3788/gzxb20184709.0919001

Funding Details: Number; Acronym; Sponsor: 11504059; NSFC; National Natural Science Foundation of China - Number; Sponsor: 2015A030313873; Natural Science Foundation of Guangdong Province - Number; Sponsor: 2016A030307025; Natural Science Foundation of Guangdong Province - Number; Sponsor: 2017A030307004; Natural Science Foundation of Guangdong Province - Number; Sponsor: 2018A030307028; Natural Science Foundation of Guangdong Province

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 31>

Accession number:20184806161498

Title:Luminescence Properties of YAG:Ce Phosphor Film Composite Material and pc-WLED Effected by Particle Size and Concentration

Authors:Xu, Sai-Sai (1); Wei, Jian-Jun (1); Yang, Liu-Kun (1); Pan, Zhi-Hua (1)

Author affiliation:(1) College of Material Science and Engineering, Nanjing Tech University, Nanjing; 210009, China

Corresponding author:Pan, Zhi-Hua(funmat_123@163.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0916002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:High temperature molding technology was used to prepare YAG:Ce phosphor film composite material with YAG:Ce and silica gel as raw material, and the white light LED was packaged with blue LED light source. Based on the Mie theory, fluorescence spectrometer, rapid spectral radiometer and spectral distribution meter, the color parameters of film material and white LED were calculated and measured, and the influence mechanism of the particle size and concentration on the parameters were analyzed. At the same concentration, with the decreasing of the particle size, the mean free path decrease and the scattering coefficient and probability of absorption and conversion of the excited photon in the film material increase accordingly, The emission intensity of the film material, the luminous efficiency and homogeneity of light color of white LED are all increase correspondingly, the optimum value of the particle size is 8.7 &mu;m at the same concentration; At the same particle size, along with the increasing of the concentration. The emission intensity of the film material, the luminous flux and photochromic uniformity of the white LED are also increase correspondingly. When the concentration is 4% and particle size is 8.7 &mu;m, the white LED color temperature is 5 514 K, the luminous efficiency is 136.8 lm/W (@300 mA, 6.6 V), value of homogeneity of light color is 0.759, color coordinates x=0.332 2, y=0.359 6, the color point is located in the positive white light area near the blackbody radiation curve, which is the best concentration. Under different currents, the luminous efficiency and efficiency of white LED are linear, luminous flux: y=0.681 6x+63.121, R<sup>2</sup>=0.995 7, luminous efficiency: y=-0.062 8x+ 155.2&#65292; R<sup>2</sup>=0.991 6.This study shows the feasibility of flim material in white LED applications, and the relevant laws obtained are of reference for practical applications.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:16

Main heading:Particle size

Controlled terms:Color - Composite materials - Concentration (process) - Efficiency - Light - Light emitting diodes - Luminescence - Phosphors - Silica - Silica gel  - Yttrium aluminum garnet

Uncontrolled terms:Fluorescence spectrometers - Light color - Luminescence properties - Luminous efficiency - Phosphor converted white leds - Phosphor film - Scattering co-efficient - Spectral distribution

Classification code:714.2  Semiconductor Devices and Integrated Circuits - 741.1  Light/Optics - 804  Chemical Products Generally - 913.1  Production Engineering - 951  Materials Science

Numerical data indexing:Percentage 4.00e+00%, Size 8.70e-06m, Temperature 5.51e+03K, Voltage 6.60e+00V

DOI:10.3788/gzxb20184709.0916002

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 32>

Accession number:20184806161503

Title:Design and Fabrication of Photoconductive Mesh on Transparent Substrate

Authors:Wang, Jun (1); Leng, Yan-Bing (1); Sun, Yan-Jun (1); Ji, Xue-Song (2); Wang, Li (1); Wang, Yue (1)

Author affiliation:(1) National Demonstration Center for Experimental Opto-Electronic Engineering Education, School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun; 130022, China; (2) Liaoshen Industrial Group Co.,Ltd., Shenyang; 110045, China

Corresponding author:Sun, Yan-Jun(custsun@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0913002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:Based on the semiconductor photoconductive effect, the mechanism of photo-induced conductive composite mesh was analyzed, and the design ideas and structural characteristics of the photo-induced conductive composite mesh were clarified. Combined with the transparent sapphire substrate, the radar wave 2~18 GHz and infrared 3~12 &mu;m wavebands were selected as the research object to optimize and simulate the parameters of the composite mesh structure. When the period of mesh parameter cycle changes from 5 mm to 2.5 mm, and the side length changes from 4.9 mm to 2.4 mm, correspondingly, the central resonance frequency of the mesh changes from 13.2 GHz to 14 GHz. The principle of coaxial alignment of diffraction gratings was used to ensure the alignment accuracy of the two lift-off lithography processes. The mesh cycle error is less than 6 &mu;m and the length error is less than 5 &mu;m, which satisfies the experimental requirements. The optical and electrical properties of the composite mesh were tested, and the results are: compared the sample without sapphire substrate with the composite mesh, the overall trend of the infrared transmittance curve did not change, and the overall transmittance decreased by about 7.8%, which is a 3.4% difference from the single metal mesh. This is in line with the law of infrared transmission loss. The central resonant frequency of the composite mesh measured at a sensitive wavelength of 600 nm is changed from 13.22 GHz to 14.03 GHz, which is basically consistent with the simulation results. Thus, the feasibility of illumination to control the electromagnetic performance of the composite grid was verified.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:15

Main heading:Mesh generation

Controlled terms:Infrared radiation - Lithography - Natural frequencies - Photoconductivity - Sapphire - Substrates

Uncontrolled terms:Composite mesh - Electromagnetic performance - Experimental requirements - Optical and electrical properties - Optics at surface - Photoconductive - Photoconductive effect - Structural characteristics

Classification code:482.2.1  Gems - 723.5  Computer Applications - 741.1  Light/Optics

Numerical data indexing:Frequency 1.32e+10Hz to 1.40e+10Hz, Frequency 2.00e+09Hz to 1.80e+10Hz, Percentage 3.40e+00%, Percentage 7.80e+00%, Size 3.00e-06m to 1.20e-05m, Size 4.90e-03m to 2.40e-03m, Size 5.00e-03m to 2.50e-03m, Size 5.00e-06m, Size 6.00e-06m, Size 6.00e-07m

DOI:10.3788/gzxb20184709.0913002

Funding Details: Number; Acronym; Sponsor: 11474037; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11474041; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 33>

Accession number:20184806161497

Title:Enhancing Organic-inorganic Hybrid Perovskite Amplified Spontaneous Emission Based on the Gold Nanoparticles

Authors:Wu, Xiao-Yan (1, 2); Liu, Guo-Dong (1, 2); Li, Yang-Long (1, 2); Li, Wei (1); Wu, Ling-Yuan (1, 2); Fu, Bo (1); Wang, Wei-Ping (1, 2); Zhang, Da-Yong (1); Zhao, Jian-Heng (1); Chen, Ping (3)

Author affiliation:(1) Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang; Sichuan; 621900, China; (2) Key Laboratory of Science and Technology on High Energy Laser, China Academy of Engineering Physics, Mianyang; Sichuan; 621900, China; (3) School of Physical Science and Technology, MOE Key Laboratory on Luminescence and Real-Time Analysis, Southwest University, Chongqing; 400715, China

Corresponding author:Liu, Guo-Dong(guodliu@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0916001

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:When the organic-inorganic hybrid perovskite has been regarded as the gain medium in lasers, the lasing devices with nanosecond laser pulses or continuous wave pumping at room temperatures is unstable and the electrically driven lasing is difficult to be achieved. Gold nanoparticles solution and PEDOT:PSS solution were blended, gold nanoparticles with size of 20 nm were doped into PEDOT: PSS interface layer in a slab waveguide device. As a result, the facile device doping with gold nanoparticles shows a 5.5-fold enhanced amplified spontaneous emission intensity than the device without gold nanoparticles. The results show that gold nanoparticles can effectively improve the absorption of CH<inf>3</inf>NH<inf>3</inf>PbBr<inf>3</inf> film, increase the population inversion and accelerate the excitons radiative decay process. Combining with theoretical simulation, the comprehensive near- and far-field surface plasmon of gold nanoparticles could both couple with the absorption/emission area, so that the amplified spontaneous emission of planar waveguide are improved. The results can provide a reference in fabricating the high performance optically pumped amplified spontaneous emission devices.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:29

Main heading:Gold nanoparticles

Controlled terms:Conducting polymers - Continuous wave lasers - Fiber optic sensors - Metal nanoparticles - Optical pumping - Organic lasers - organic-inorganic materials - Perovskite - Semiconductor doping - Spontaneous emission  - Surface plasmons - Waveguides

Uncontrolled terms:Amplified spontaneous emissions - Continuous-wave pumping - Far field - Gold nanoparticles solutions - Nanosecond laser pulse - Near fields - Organic-inorganic hybrid - Theoretical simulation

Classification code:482.2  Minerals - 708.2  Conducting Materials - 711  Electromagnetic Waves - 712.1  Semiconducting Materials - 714.3  Waveguides - 741.1.2  Fiber Optics - 744.1  Lasers, General - 761  Nanotechnology

Numerical data indexing:Size 2.00e-08m

DOI:10.3788/gzxb20184709.0916001

Funding Details: Number; Acronym; Sponsor: 11504300; NSFC; National Natural Science Foundation of China - Number; Acronym; Sponsor: 11602243; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 34>

Accession number:20184806161508

Title:Design of Stable Satellite-borne Doppler Asymmetric Spatial Heterodyne Interferometer Support Structure

Authors:Bai, Yu-Long (1, 2); Sun, Jian (1); Hao, Xiong-Bo (1); Wu, Jun-Qiang (1); Bai, Qing-Lan (1); Feng, Yu-Tao (1)

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

Corresponding author:Feng, Yu-Tao(fytciom@126.com)

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0922002

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:In order to ensure the mechanical stability and thermal stability of the satellite-borne Doppler asymmetric spatial heterodyne interferometer on wind measurement, a low heat conduction and microstress support structure is designed, and the interferometer is clamped by the combination of bonding and elastic compression. Firstly, according to the structural characteristics and stability requirements of the interferometer, a ring bonding surface is proposed, the bonding surface is optimized and compared with the existing one. Then, in view of the question that the response stress of the interface between the interferometer and the base is too large under the condition of random vibration, a cover structure with pretension is designed to improve bonding reliability. Finally, finite element simulation and test are carried out to analyze and verify the low thermal conductivity and mechanical reliability of the interferometer assembly. Experimental results indicate that the ring bonding surface has a 63.54% reduction in the heat input from the base to the optical components under the same conditions than the existing one. The maximum response stress of the adhesive surface at random vibration is 2 MPa. The basic frequencies of the interferometer component are all above 1900 Hz. The relative error of the analysis and test results is less than 8.6%. The interferometer based on the ring bonding surface and pretension has the characteristics of low heat conduction and high mechanical reliability, the structure design is reasonable and the performance is reliable.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:17

Main heading:Interferometers

Controlled terms:Adhesives - Convergence of numerical methods - Ground supports - Heat conduction - Heterodyning - Mechanical stability - Modal analysis - Reliability - Structural design - Thermal conductivity  - Thermodynamic stability - Vibration analysis

Uncontrolled terms:Bonding surfaces - Finite element simulations - Low thermal conductivity - Mechanical reliability - Random vibrations - Stability requirements - Structural characteristics - Surface figure

Classification code:408.1  Structural Design, General - 641.1  Thermodynamics - 641.2  Heat Transfer - 921  Mathematics - 921.6  Numerical Methods - 941.3  Optical Instruments

Numerical data indexing:Frequency 1.90e+03Hz, Percentage 6.35e+01%, Percentage 8.60e+00%, Pressure 2.00e+06Pa

DOI:10.3788/gzxb20184709.0922002

Funding Details: Number; Acronym; Sponsor: 41005019; NSFC; National Natural Science Foundation of China

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

<RECORD 35>

Accession number:20184806161522

Title:Dual Wavelength Fluorescence Microscopy Depth Imaging Based on Fresnel Lens Chromatic Aberration

Authors:Huang, Xin-Rong (1); Zheng, Ji-Hong (1); Liu, You-Rong (1); Zhu, Tian-Yun (1); Miao, Tao (1)

Author affiliation:(1) Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, Shanghai; 200093, China

Source title:Guangzi Xuebao/Acta Photonica Sinica

Abbreviated source title:Guangzi Xuebao

Volume:47

Issue:9

Issue date:September 1, 2018

Publication year:2018

Article number:0917003

Language:English

ISSN:10044213

CODEN:GUXUED

Document type:Journal article (JA)

Publisher:Chinese Optical Society

Abstract:A technique about non-axial-scanning microscopic cell depth imaging is proposed. Fresnel lens are added into the microscopic system, and the chromatic aberration of a Fresnel lens is exploited to focus different excitation light wavelengths into different axial positions. It can realize the imaging of two or more focal planes. Based on the excitation light wavelengths of 405 nm and 532 nm, two imaging detectors are added into the excitation path of a conventional fluorescence microscope to detect the imaging information of the image plane corresponding to two different focal planes. A fluorescence microscopic depth imaging system with a detection depth of about 12 &mu;m is established. The imaging depth and axial resolution of the proposed system are compared with those of a fluorescence microscopic depth imaging system based on a microscope-less Fresnel lens. Experimental results show that the addition of Fresnel lens enables simultaneous imaging of different focal planes. For the same fluorescence band, the lateral resolution of the system is ensured while the imaging depth of field is expanded, the system can achieve multi-band simultaneous detection at different depths of fluorescent biological cells.<br/> &copy; 2018, Science Press. All right reserved.

Number of references:17

Main heading:Aberrations

Controlled terms:Fluorescence imaging - Fluorescence microscopy - Focusing - Image resolution - Imaging systems - Optical instrument lenses

Uncontrolled terms:Axial resolutions - Depth imaging - Fluorescent cells - Focal shifts - Fresnel lens - Microscopic imaging - Microscopy systems

Classification code:741.3  Optical Devices and Systems - 746  Imaging Techniques - 931.4  Quantum Theory; Quantum Mechanics

Numerical data indexing:Size 1.20e-05m, Size 4.05e-07m, Size 5.32e-07m

DOI:10.3788/gzxb20184709.0917003

Database:Compendex

Compilation and indexing terms, Copyright 2018 Elsevier Inc.

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