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&RECORD 1&
Accession number:8
Title:Real-time detection of moving point targets in staring binocular imaging system
Authors:Qu, You-Shan (0); Fan, Xue-Wu (0); Li, Ying-Cai (0); Wen, De-Sheng (0); Tian, Wei-Jian (0)
Corr. author affiliation:Xi 'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi 'an 110068, China
Source title:Guangdian Gongcheng/Opto-Electronic Engineering
Abbreviated source title:Guangdian Gongcheng
Issue date:January 2006
Publication year:2006
Pages:42-45
Language:Chinese
ISSN:1003501X
CODEN:GUGOEC
Document type:Journal article (JA)
Publisher:Chinese Academy of Sciences, Chengdu, Sichuan, China
Abstract:The information quantity passed through the overlapped Field of View (FOV) is larger than that passed through the non-overlapped FOV in staring binocular imaging system, a new parallel high-speed automatic detecting algorithm of moving point targets is established based on this feature. The detecting algorithm uses the Norm of the difference vectors of the processed images sequence as a preprocessing to get rid of most of low-frequency noise and background, then Optic Flow is used to segment the doubtful moving point targets from the images remained after preprocessing, and finally the novel space-time parallel high-speed determining method proposed in this paper is used to determine whether the doubtful moving point are true targets or not. The experiment results show that with the established algorithm, the average determining speed for moving point targets is raised 50% than that of the monocular imaging system, and the correct determining probability is 95% when the SNR of processed images is no less than 3 dB.
Number of references:9
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 2&
Accession number:68
Title:Fabrication and fluorescence properties of Eu(TTFA) &sub&3&/sub&-doped PMMA
Authors:Sun, Ting (0); Wang, Yaoxiang (0); Huang, Changqing (0); Tian, Weijian (0); Zhang, Xinglong (0); Liu, Guangwen (0); Zhao, Baoping (0); Huang, Kun (0); Yu, Huixia (0)
Corresponding author:Sun, T.(sunting@)
Corr. author affiliation:Laboratory of Information and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:November 2006
Publication year:2006
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:Eu&sup&3+&/sup& chelates with thenoyltrifluoroacetylacetone (TTFA), Hexafluoroacetylacetone(HFA) and dibenzoyl -methide (DBM) as the ligands and PMMA doped with these chelates were synthesized, respectively. Fluorescence properties of the chelates Eu(TTFA)&sub&3&/sub&, Eu(HFA)&sub&3&/sub&, Eu(DBM)&sub&3&/sub& in benzene solution and in PMMA matrix were investigated. It was found that the fluorescence intensity of Eu (TTFA)&sub&3&/sub& was the topmost. The effect factors on the fluorescence intensity of complexes were analyzed. It was testified that TTFA was a good ligand of Eu&sup&3+&/sup& for red fluorescence emission. Finally, the dependence of Eu(TTFA)&sub&3&/sub& doping concentrations (0.08 wt.%-0.5wt.%) on the fluorescence intensity and the fluorescence lifetimes were investigated. The results showed that the fluorescence intensity and the lifetimes increased within the doping concentrations investigated. The fluorescence lifetimes were between 280-400 &s. Such fluorescing PMMA might have extensive prospect of applications in optical devices, such as polymer optical fibers, lasers, amplifiers and waveguides.
Number of references:10
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 3&
Accession number:4
Title:Research and manufacture of minisize single stage polarization-independent optical isolator
Authors:Zhang, Wen-Song (1); Fang, Qiang (1); Zhao, Wei (1); Yao, Sheng-Li (4)
Author affiliation:(1) State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, C (2) Graduate School, Chinese Academy of Sciences, Xi'an 710068, C (3) Telecommunications Department, Xi'an Institute of Posts and Telecommunications, Xi'an 710061, C (4) Femto Technology (Xi'an) Co. Ltd., Xi'an 710119, China
Corresponding author:Zhang, W.-S.(zhangwenson@)
Source title:Guangdianzi Jiguang/Journal of Optoelectronics Laser
Abbreviated source title:Guangdianzi Jiguang
Issue date:April 2006
Publication year:2006
Pages:430-433
Language:Chinese
CODEN:GUJIE9
Document type:Journal article (JA)
Publisher:Board of Optronics Lasers
Abstract:A novelty minisize single stage polarization-independent optical isolator is presented. The design of Grin-lenses and birefringence crystals and Faraday rotator of the single stage polarization-independent optical isolator are presented. Manufacture and measurements of this isolator are presented. The measured results show that the insertion loss is 0.5 dB, the minimum isolation is 30 dB and the maximum isolation is 45 dB under the range of &&inf&0&/inf& & 20 nm, the polarization dependent loss is less than 0.1 dB, the polarization mode dispersion is less than 0.05 ps.
Number of references:8
Main heading:Optical devices
Controlled terms:Birefringence - Dispersions - Lenses - Manufacture - Polarization
Uncontrolled terms:Birefringence crystals - Faraday rotator - Grin lenses - Insertion loss - Maximum isolation - Minisize - Optical isolator - Polarization dependent loss - Polarization independence - Polarization mode dispersion
Classification code:714.1 Electron Tubes - 741.3 Optical Devices and Systems
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 4&
Accession number:3
Title:Matching of both group-velocity and pulse-front for ultrabroadband three-wave-mixing with noncollinear angularly dispersed geometry
Authors:Liu, H. (1); Zhao, W. (1); Yang, Y. (1); Wang, H. (1); Wang, Y. (1); Chen, G. (1)
Author affiliation:(1) State Key Lab. of Transient Optics and Photonics Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an, 710068, China
Corresponding author:Liu, H.(liuhongjun@)
Source title:Applied Physics B: Lasers and Optics
Abbreviated source title:Appl Phys B
Issue date:March 2006
Publication year:2006
Pages:585-594
Language:English
CODEN:APBOEM
Document type:Journal article (JA)
Publisher:Springer Verlag
Abstract:Ultrabroadband three-wave-mixing is analyzed using the concept of pulse-front-tilt, which is achieved by means of angular dispersion. The results show exactly matching of both group-velocity and pulse-front is the important criterion for constructing an ultrabroadband TWM. A theoretical model is developed, in which the group velocities, noncollinear angles, spatial walk-off angles, linear angular spectral dispersion coefficients and pulse-front tilted angles are suitably linked to each other. Expressions for finding ideal phase matching angle, noncollinear angle and linear angular spectral dispersion coefficient are obtained. Specific numerical results are presented for crystals BBO and LBO with type-I noncollinear angularly dispersed geometry. The numerical simulations verify that our model is valid for designing a practicable ultrabroadband parametric process.
Number of references:44
Main heading:Nonlinear optics
Controlled terms:Computer simulation - Crystals - Dispersion (waves) - Laser pulses - Mathematical models
Uncontrolled terms:Angular dispersion - Group velocities - Phase matching - Three-wave-mixing
Classification code:711.1 Electromagnetic Waves in Different Media - 723.5 Computer Applications - 741.1.1 Nonlinear Optics - 744.1 Lasers, General - 921 Mathematics - 933.1 Crystalline Solids
Treatment:Theoretical (THR)
DOI:10.-005-2114-9
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 5&
Accession number:12
Title:The second dissociation threshold bound levels of hydrogen molecule
Authors:Zhang, Yan-Peng (1); Song, Jian-Ping (1); Gan, Chen-Li (3); Yan, Xiang-An (1); Nie, Zhi-Qiang (1); Jiang, Tong (1); Li, Ling (1); Du, Kai (1); Zhang, Xiang-Chen (1); Lu, Ke-Qing (4); Eyler, E.E. (2)
Author affiliation:(1) Department of Electronic Science and Technology, Xi'An Jiaotong University, Xi'an 710049, C (2) Department of Physics, University of Connecticut, U-3046, Storrs, CT 06269, United S (3) Department of Physics, University of Arkansas, Fayetteville, AR 72701, United S (4) State Key Laboratory of Transient Optics and Technology, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Corresponding author:Zhang, Y.-P.
Source title:Chinese Physics
Abbreviated source title:Chin. Phys.
Issue date:October 1, 2006
Publication year:2006
Article number:017
Language:English
CODEN:CHPHF4
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:The near-threshold highly bound states of all three stable isotopic variants of molecular hydrogen have been studied. Numerous perturbations and unexpected transitions are observed as far as 1 cm&sup&-1&/sup& just below the second dissociation threshold. This complex structure may arise from a combination of nonadiabatic coupling between B, B&, C electronic states, perturbations due to fine and hyperfine interactions, and strong shape resonances. The perturbed near-threshold states and vibrational continuum exhibit finegrained structure, differing greatly between isotopes because of varying nonadiabatic coupling. & 2006 Chin. Phys. Soc. and IOP Publishing Ltd.
Number of references:11
Main heading:Molecular physics
Controlled terms:Band structure - Dissociation - Electron energy levels - Hydrogen - Perturbation techniques - Resonance
Uncontrolled terms:Bound states - Dissociation threshold - Nonadiabatic coupling
Classification code:802.2 Chemical Reactions - 804 Chemical Products Generally - 921 Mathematics - 931.1 Mechanics - 931.3 Atomic and Molecular Physics - 933 Solid State Physics
Treatment:Theoretical (THR)
DOI:10.63/15/10/017
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 6&
Accession number:6
Title:Synthesis and fluorescence properties of Eu(TTFA)&sub&3&/sub&-doped colloidal SiO&sub&3&/sub& microspheres
Authors:Huang, Changqing (0); Sun, Ting (0); Zhao, Baoping (0); Tian, Weijian (0); Wang, Yaoxiang (0)
Corr. author affiliation:Laboratory of Information and Photonics, Xi'an Institute of Optics and Precision Mechanics, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:March 2006
Publication year:2006
Pages:377-380
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:Monodisperse, Eu(TTFA)&sub&3&/sub&-doped colloidal SiO&sub&2&/sub& microspheres with different doping concentrations were synthesized by the modified Stober method. The transmission electron microscope (TEM) and fluorescence spectrometer were employed to characterize the doping particles. It was found that the particles with the spherical morphology and the smooth surfaces had an average diameter of 300 nm and a size polydispersity of 3.5%. Visible luminescence of Eu&sup&3+&/sup& from Eu(TTFA)&sub&3&/sub&-doped colloidal SiO&sub&2&/sub& microspheres was observed, with a lifetime of about 290 &s. Furthermore, the effect of doping concentrations (0.5-1.5 wt.%) on the fluorescence intensity and the lifetimes was studied. The results showed that the fluorescence intensity increased with the doping concentrations, there was no obvious luminescence quenching during the processes of being excited, and the luminescence lifetimes were almost invariable while the doping concentrations were changed. Such fluorescence microspheres might have potential in active photonic crystals, microlasers and biological applications.
Number of references:14
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 7&
Accession number:0
Title:A C- and L-band dual-wavelength erbium-doped fibre laser for assisting four-wave mixing self-stability
Authors:Liu, Xueming (1); Zhao, Wei (1); Liu, Hongjun (1); Zou, Kuaisheng (1); Zhang, Tongyi (1); Lu, Keqing (1); Sun, Chuandong (1); Wang, Yishan (1); Ouyang, Xian (1); Chen, Guofu (1); Hou, Xun (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'An Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Corresponding author:Liu, X.(liuxm@)
Source title:Journal of Optics A: Pure and Applied Optics
Abbreviated source title:J Opt A Pure Appl Opt
Issue date:June 1, 2006
Publication year:2006
Pages:601-605
Article number:016
Language:English
CODEN:JOAOF8
Document type:Journal article (JA)
Publisher:Institute of Physics Publishing
Abstract:A kind of photonic 'Robin Hood' based on four-wave mixing is proposed and proved to be effective, theoretically and experimentally, in detail. Its applications for L-band dual-wavelength erbium-doped fibre (EDF) laser use are experimentally demonstrated at room temperature. The experimental results show that the conventional EDF cavity only induces a very unstable L-band laser, but the novel Robin Hood can effectively suppress the homogeneous gain in the erbium laser. By using suitable fibre Bragg gratings and stretching them, the proposed EDF laser can operate from &1520 to &1635nm, so our dual-wavelength EDF laser can be used in lasing operation not only for the L band but also for the C band. The outstanding merits of our dual-wavelength laser are the flexible tuning and the ultrabroad spectral range of more than 115nm. The experimental results show that the stability and uniformity of the proposed dual-wavelength laser in C-band operation are better than those for the same laser in L-band operation. & 2006 IOP Publishing Ltd.
Number of references:25
Main heading:Fiber lasers
Controlled terms:Doping (additives) - Erbium - Fiber Bragg gratings - Four wave mixing - Optical waveguides
Uncontrolled terms:Erbium-doped fibre - L band - Ultrabroad spectral range
Classification code:547.2 Rare Earth Metals - 711.1 Electromagnetic Waves in Different Media - 712.1 Semiconducting Materials - 714.3 Waveguides - 741.3 Optical Devices and Systems - 744.4 Solid State Lasers
Treatment:Theoretical (THR)
DOI:10.58/8/6/016
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 8&
Accession number:7
Title:Application of mathematical morphology on infrared image of multi-dim-small target
Authors:Hui, Jianjiang (0); Liu, Zhaohui (0); Liu, Wen (0)
Corr. author affiliation:Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:April 2006
Publication year:2006
Pages:626-629
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:Through the top-hat and bottom-hat of mathematical morphology in image enhancement, the targets' cluster was divided into single target by method of watershed. And automatic threshold selection was applied in segmentation of the image. The experiments results supported the method.
Number of references:8
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 9&
Accession number:18
Title:Optical absorption and nonlinear mixing of near-infrared and terahertz wave in quantum wells
Authors:Zhang, Tong-Yi (1); Zhao, Wei (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precise Mechanics, Chinese Academy of Science, 322 West Youyi Road, Xi'an, 710068, China
Corresponding author:Zhang, T.-Y.(tyzhang@)
Source title:IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics
Abbreviated source title:IRMMW-THz - Int. Conf. Infrared Millimeter Waves Int. Conf. Terahertz Electron.
Monograph title:IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics
Issue date:2006
Publication year:2006
Article number:4222502
Language:English
Document type:Conference article (CA)
Conference name:IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics
Conference date:September 18, 2006 - September 22, 2006
Conference location:Shanghai, China
Conference code:73222
Sponsor:Shanghai Inst. Tech. Phys., Chinese Acad. Sci. (SITP, CAS); Southeast University (SEU); Chinese Academy of Sciences (CAS); National Natural Science Foundation of C IEEE Microwave Theory and Techniques Society (MTT-S)
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ , United States
Abstract:Linear optical absorption and terahertz (THz) sideband generation in quantum wells in the presence of a strong growth-direction oriented THz electric field is investigated. It is shown that the THz field can couple more than two levels simultaneously. The absorption spectra show a rich variety of behavior, including THz replicas of the 2 p exciton and THz sideband of the 1s exciton. The THz electric field results in multiple optical absorption peaks due to resonant coupling between the valence subbands and produces splittings in the generated sidebands. &2006 IEEE.
Number of references:4
Main heading:Electric generators
Controlled terms:Absorption - Electric field effects - Electric fields - Electromagnetic wave absorption - Electromagnetic waves - Energy absorption - Excitons - Millimeter wave devices - Millimeter waves - Semiconductor quantum wells& - Semiconductor quantum wires - Wells
Uncontrolled terms:International conferences - Terahertz electronics
Classification code:931.3 Atomic and Molecular Physics - 931.2 Physical Properties of Gases, Liquids and Solids - 802.3 Chemical Operations - 715 Electronic Equipment, General Purpose and Industrial - 714.2 Semiconductor Devices and Integrated Circuits - 714 Electronic Components and Tubes - 712.1 Semiconducting Materials - 711 Electromagnetic Waves - 705.2 Electric Generators - 701.1 Electricity: Basic Concepts and Phenomena - 512.2 Natural Gas Deposits - 512.1 Petroleum Deposits - 446.1 Water Supply Systems
DOI:10.1109/ICIMW.
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 10&
Accession number:91
Title:Fabrication of sub-micro size PZT array and their ferroelectric properties
Authors:Zhao, Gaoyang (1); Zhang, Weihua (1); Xu, Guomin (1); Deng, Xiaocui (1); Jiang, Bailing (1); Zhao, Wei (2)
Author affiliation:(1) School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, C (2) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an 710048, China
Corresponding author:Zhao, G.(zhaogy@)
Source title:Science in China, Series E: Technological Sciences
Abbreviated source title:Sci China Ser E Technol Sci
Issue date:December 2006
Publication year:2006
Pages:693-700
Language:English
E-ISSN:1862281X
CODEN:SCETFO
Document type:Journal article (JA)
Publisher:Springer Verlag, Tiergartenstrasse 17, Heidelberg, D-69121, Germany
Abstract:The photosensitive PZT sols and their gel films were prepared by sol-gel process. Based on the photosensitivity of the PZT gel films, two-dimensional (2D) array of the PZT gel film was fabricated using twice-exposure of double-beam interference on the gel film. PZT gel films coated on ITO/quartz substrate were exposed to an interference fringe of 325 He-Cd laser beams, the substrate was rotated by 90& between the first and second irradiation steps. Island type periodic 2D array structures with a pitch of 1 &m and cell size of about 480 nm & 480 nm & 40 nm were formed after the irradiation, and followed by leaching with organic solvent, and then by heat treatment at 600&C for 15 min. The hysteresis loops of the cell in PZT array were in-situ measured by the online-operation of TF analyzer and atomic force microscope (AFM). The probe can be located on the locked cell of PZT array in the AFM image. The alternating voltage applied to the locked cell is supplied by the TF analyzer through the conductive coating probe, and then the test signal is fed back to the TF analyzer to obtain the hysteresis loop of the locked cell of array in the absence of top electrode. The results show that the sub-micro size PZT arrays prepared in this way are of polarization reversal characteristics with the alternating electric fields, thereby exhibiting obvious ferroelectricity. & Science in China Press 2006.
Number of references:10
Main heading:Sols
Controlled terms:Atomic force microscopy - Ferroelectricity - Laser beam effects - Leaching - Magnetic films - Organic solvents - Photosensitivity - Sol-gels
Uncontrolled terms:Ferroelectric films - Hysteresis loop - Polarization reversal characteristics
Classification code:804.1 Organic Compounds - 804 Chemical Products Generally - 803 Chemical Agents and Basic Industrial Chemicals - 802.3 Chemical Operations - 744.8 Laser Beam Interactions - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 708.4 Magnetic Materials - 701.1 Electricity: Basic Concepts and Phenomena
Treatment:Experimental (EXP)
DOI:10.-006-2034-x
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 11&
Accession number:51
Title:Microstructure and fluorescence property of silicon fabricated by femtosecond laser
Authors:Men, Hai-Ning (1); Cheng, Guang-Hua (1); Sun, Chuan-Dong (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonic Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Acad. of Sci., P.O. Box 80, Xi'an 710068, C (2) Graduate School, Chinese Acad. of Sci., Beijing 100039, China
Corresponding author:Men, H.-N.()
Source title:Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams
Abbreviated source title:Qiangjiguang Yu Lizishu
Issue date:July 2006
Publication year:2006
Language:Chinese
CODEN:QYLIEL
Document type:Journal article (JA)
Publisher:Editorial Office of High Power Laser and Particle Beams
Abstract:The micro-structure surface and fluorescence of silicon slice fabricated by femtosecond laser under the assistant of low consistency sulfuric acid liquor are reported. A 10 mm & 10 mm square region was fabricated from 0.5 mm thick and 26 mm in diameter silicon slice. The absorbency is increased due to the change of the surface microstructure of the silicon. Photoluminescence spectra display a high fluorescence emission at the wavelength from 700 nm to 750 nm, thus show a new and simple method to increase the fluorescence property of silicon.
Number of references:19
Main heading:Silicon
Controlled terms:Crystalline materials - Fluorescence - Laser applications - Microstructure - Photoluminescence - Sulfuric acid - Surfaces
Uncontrolled terms:Crystalline silicon - Femtosecond laser - Fluorescence property - Silicon slice
Classification code:712.1.1 Single Element Semiconducting Materials - 741.1 Light/Optics - 744.9 Laser Applications - 931 Classical P Quantum T Relativity - 933 Solid State Physics
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 12&
Accession number:57
Title:Research on the frequency response function and bandwidth of Step-index plastic optical fiber
Authors:Ge, Wenping (1); Tian, Weijian (1); Wang, Yaoxiang (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Academia Sinica, Xi'an 710068; (2) College of Information Science and Engineering, Xinjiang University, Urumchi 830046
Corresponding author:Ge, W.
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6289
Monograph title:Novel Optical Systems Design and Optimization IX
Issue date:2006
Publication year:2006
Article number:62891C
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:Novel Optical Systems Design and Optimization IX
Conference date:August 15, 2006 - August 16, 2006
Conference location:San Diego, CA, United states
Conference code:68428
Sponsor:SPIE
Publisher:SPIE
Abstract:The Step-index plastic optical fiber(SIPOF) bandwidth calculation model is given. The model includes not only the modal delay but also the attenuation and mode coupling effects, the numerical solution of the power flow equation in Fourier domain which is the main equation in this model is reported. This solution is based on Crank-Nicholson implicit difference method. The frequency response function and bandwidth of four kinds of SIPOFS with different Numerical aperture is researched. The frequency response function and bandwidth under selective excitation is numerically calculated. The results imply that the selective excitation of SIPOF increased effectively the fiber bandwidth. Calculated results are useful for practical application of plastic optical fiber.
Number of references:8
Main heading:Optical fibers
Controlled terms:Attenuation - Bandwidth - Frequency response - Mathematical models - Numerical analysis - Optical systems
Uncontrolled terms:Bandwidth forecast - Frequency response function - Plastic optical fibers
Classification code:703.1 Electric Networks - 711.1 Electromagnetic Waves in Different Media - 716.1 Information Theory and Signal Processing - 741.1.2 Fiber Optics - 741.3 Optical Devices and Systems - 921.6 Numerical Methods
Treatment:Theoretical (THR)
DOI:10.325
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 13&
Accession number:6
Title:Observation of a fast electron beam emitted along the surface of a target irradiated by intense femtosecond laser pulses
Authors:Li, Y.T. (1); Yuan, X.H. (1); Xu, M.H. (1); Zheng, Z.Y. (1); Sheng, Z.M. (1); Chen, M. (1); Ma, Y.Y. (1); Liang, W.X. (1); Yu, Q.Z. (1); Zhang, Y. (1); Liu, F. (1); Wang, Z.H. (1); Wei, Z.Y. (1); Zhao, W. (2); Jin, Z. (1); Zhang, J. (1)
Author affiliation:(1) Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, C (2) State Key Laboratory of Transient Optics Technology, Chinese Academy of Sciences, Xi'an 710068, China
Corresponding author:Zhang, J.(jzhang@aphy.)
Source title:Physical Review Letters
Abbreviated source title:Phys Rev Lett
Issue date:2006
Publication year:2006
Article number:165003
Language:English
CODEN:PRLTAO
Document type:Journal article (JA)
Publisher:American Physical Society
Abstract:A novel fast electron beam emitting along the surface of a target irradiated by intense laser pulses is observed. The beam is found to appear only when the plasma density scale length is small. Numerical simulations reveal that the electron beam is formed due to the confinement of the surface quasistatic electromagnetic fields. The results are of interest for potential applications of fast electron beams and deep understanding of the cone-target physics in the fast ignition related experiments. & 2006 The American Physical Society.
Number of references:29
Main heading:Laser pulses
Controlled terms:Electromagnetic fields - Electron beams - Irradiation - Light emission - Surface phenomena
Uncontrolled terms:Cone-target physics - Electron beam emitting - Intense laser pulses - Surface quasistatic
Classification code:622.2 Radiation Effects - 701 Electricity and Magnetism - 741.1 Light/Optics - 744.1 Lasers, General - 931.3 Atomic and Molecular Physics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1103/PhysRevLett.96.165003
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 14&
Accession number:0
Title:ZnO thin film photoconductive ultraviolet detector with fast photoresponse
Authors:Xu, Q.A. (1); Zhang, J.W. (1); Ju, K.R. (3); Yang, X.D. (1); Hou, X. (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, C (2) Graduate School, Chinese Academy of Sciences, Beijing 100039, C (3) Key Laboratory of Photonics Technology for Information, Shaanxi Province, Xi'an Jiaotong University, Xi'an 710049, C (4) School of Physics and Information Photoelectronics, Henan University, Kaifeng 475000, China
Corresponding author:Xu, Q.A.()
Source title:Journal of Crystal Growth
Abbreviated source title:J Cryst Growth
Volume:289
Issue date:March 15, 2006
Publication year:2006
Pages:44-47
Language:English
CODEN:JCRGAE
Document type:Journal article (JA)
Publisher:Elsevier
Abstract:C-axis preferred oriented ZnO thin films were prepared on quartz substrates by RF sputtering. Photoconductive ultraviolet detector with planar interdigital electrodes was fabricated on ZnO thin film by the lift off technique. Linear I-V characteristic was observed under dark or 365 nm UV light illumination and has obvious difference. The photoresponsivity of 365 nm at 5 V bias is 18 A/W. The response time measure set mainly contains KrF excimer laser with the pulse width of 30 ns and the oscillograph with the bandwidth of 200 MHz. The result shows fast photoresponse with a rise time of 100 ns and fall time of 1.5 &s. & 2005 Elsevier B.V. All rights reserved.
Number of references:11
Main heading:Thin films
Controlled terms:Crystal orientation - Photoconducting materials - Quartz - Sputtering - Substrates - Ultraviolet detectors - Ultraviolet radiation - Zinc oxide
Uncontrolled terms:Detector - Photoresponsivity - Radio frequency sputtering - Response time
Classification code:933.1.1 Crystal Lattice - 804.2 Inorganic Compounds - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 712.1 Semiconducting Materials - 708.2 Conducting Materials - 482.2 Minerals - 461 Bioengineering and Biology
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1016/j.jcrysgro.
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 15&
Accession number:7
Title:Study on the hyper-spectral CCD imager non-uniformity correction algorithm
Authors:Xue, Lijun (0); Li, Zitian (0); Li, Changle (0); Ji, Zhongying (0); Cui, Yan (0); Wang, Zhonghou (0)
Corr. author affiliation:Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:May 2006
Publication year:2006
Pages:693-696
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:Based on analyzing the mechanism of the hyper-spectral CCD imager's non-uniformity and several non-uniformity correction algorithms, the method of two-point multi-section for hyper-spectral CCD imager's non-uniformity correction was presented. The two-point multi-section method has higher precision than two-point correction algorithm and has lower operation load than multi-point correction algorithm. The application of the two-point multi-section method to hyper-spectral imager showed that the method has the merits of low operation load, high precision and strong practicability.
Number of references:5
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 16&
Accession number:5
Title:Screening solitons in biased centrosymmetric photorefractive media
Authors:Li, Jinping (0); Lu, Keqing (0); Zhao, Wei (0); Yang, Yanlong (0); Zhu, Xiangping (0); Guo, Xiaohui (0)
Corr. author affiliation:State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:February 2006
Publication year:2006
Pages:257-260
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:The space-charge field with a higher-order nonlinearity in biased centrosymmetric photorefractive media is presented. When the higher-order term can be neglected, this space-charge field is that studied previously in biased centrosymmetric photorefractive media. The nonlinear wave equation with a higher-order nonlinearity is investigated in biased centrosymmetric photorefractive media, which can exhibit bright and dark spatial solitons under appropriate conditions. The nonlinear change in the refractive index in centrosymmetric photorefractive media resulted from the quadratic electro-optic effect, rather than the linear electro-optic effect in noncentrosymmetric media. The stability of these spatial solitons is discussed using beam propagation methods, and it has been found that optical spatial solitons in biased centrosymmetric photorefractive media are stable against small perturbations in amplitude not broken up.
Number of references:12
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 17&
Accession number:78
Title:Design and study of the dome-screen projector optical system
Authors:Sun, Xin (0); Bai, Jiaguang (0); Wang, Zhonghou (0)
Corresponding author:Sun, X.(cloudwings@)
Corr. author affiliation:Xi'an Institude of Optics and Precisian Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:November 2006
Publication year:2006
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:An optical system of Dome-screen projector which plays important roll in the pilot-training process was proposed. The lens system adopted the Reverse-Telephoto configuration which had an effective focal length of 5.5mm, an F-number of F/4, a field of view of 175&, and a working wavelength in the range of visible spectrum. A discussion about the relationship between the screen radius and the field curve was presented to explain why this system had an advantage in reducing the field curve. A relatively convenient method of choosing the appropriate screen radius was given at the end of the discussion.
Number of references:5
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 18&
Accession number:8
Title:Maximal PSNR wavelet bi-linear interpolation iterative algorithm in remote sensing image
Authors:Liu, Bo (0); Qu, Youshan (0); Feng, Guilan (0); Yang, Xiufang (0); Xiangli, Bin (0)
Corr. author affiliation:Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:March 2006
Publication year:2006
Pages:468-472
Language:English
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:The variable relationship between the threshold of the extrapolation and its correspondent Peak of the Signal-to-Noise Ratio (PSNR) in the Wavelet Bi-linear Interpolation Algorithm is deeply analyzed. The Maximal PSNR Wavelet Bi-linear Interpolation Iterative Algorithm is proposed. This algorithm can automatically search the optimal extrapolation threshold to improve the resolution of the optical remote sensing image without damaging its original information, which makes the detail information of the processed image more favorable to be observed and analyzed. The experiment results show that the PSNR of the image reconstructed by this algorithm is 5.5 dB and 2.5 dB higher than that of those reconstructed by the Bi-linear Interpolation and the Wavelet Scale-Function Interpolation respectively, and its entropy is 1.3 times of its original image. It is an effect algorithm to improve the spatial resolution and entropy of the Optical Remote Sensing Image.
Number of references:7
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 19&
Accession number:2
Title:Design of a CCD biochip scanning and analyzing system
Authors:Zhang, Fan (0); Xue, Lijun (0); Li, Zitian (0); Wu, Xiaohua (0)
Corresponding author:Zhang, F.(zhangfan@)
Corr. author affiliation:Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:April 2006
Publication year:2006
Pages:565-568
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:According to the characters of the protein biochip with immunogold labeling technique, the biochip scanning and analyzing system was designed based on CCD and digital image treatment technology. After presenting the architecture of the whole system, the article introduces the software framework of it. And then, the method of analyzing and processing biochip image is described in detail.
Number of references:8
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 20&
Accession number:50
Title:A new method to grow high quality GaN film by MOCVD
Authors:Peng, Dong-Sheng (0); Feng, Yu-Chun (0); Wang, Wen-Xin (0); Liu, Xiao-Feng (0); Shi, Wei (0); Niu, Han-Ben (0)
Corr. author affiliation:Xi'an Institute of Optics and precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Source title:Wuli Xuebao/Acta Physica Sinica
Abbreviated source title:Wuli Xuebao
Issue date:July 2006
Publication year:2006
Language:Chinese
CODEN:WLHPAR
Document type:Journal article (JA)
Publisher:Science Press, Beijing, China
Abstract:Patterned c-plane sapphire substrate is prepared by chemical etching. GaN films are grown by LP-MOCVD on surface treated sapphire substrate and common c-plane sapphire substrate. The structure and properties of the GaN films are analyzed by high-resolution double crystal X-ray diffraction (DCXRD), scanning electron microscope (SEM) and atomic force microscope (AFM). The results indicate that the quality of GaN film grown on sapphire substrate prepared by surface treatment is superior to that grown on common c-plane sapphire substrate. High-resolution double crystal X-ray diffraction shows that for the GaN grown on surface treated sapphire substrate, the (0002) and (101 over-bar 2) reflections have full-width at half-maximum as low as 208.80 arcsec and 320.76 arcsec, respectively. The shortcomings of procedure complexity and high crystallographic tilt in conventional lateral epitaxial overgrowth are overcome by using the new method.
Number of references:8
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 21&
Accession number:76
Title:Three-dimensional optical storage in a PMMA polymer doped with Ce&sup&3+&/sup&
Authors:Xing, Hui (1); Tang, Huohong (1); Jiang, Bing (1); Cai, Jianwen (1); Cheng, Guanghua (2); Liu, Qing (2); Huang, Wenhao (1); Xia, Andong (1)
Author affiliation:(1) Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, C (2) State Key Laboratory of Transient Optics and Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, C (3) State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100800, China
Corresponding author:Xing, H.(xinghui@mail.)
Source title:Guangxue Xuebao/Acta Optica Sinica
Abbreviated source title:Guangxue Xuebao
Issue date:June 2006
Publication year:2006
Pages:874-877
Language:Chinese
CODEN:GUXUDC
Document type:Journal article (JA)
Publisher:Chinese Optical Society
Abstract:The writing of multi-layered data bits inside a PMMA block doped with rare-earth ions Ce&sup&3+&/sup& excited by a 800 nm femtosecond (200 fs, 1 kHz, 800 nm) pulsed laser, and the measurement and discussion of absorption spectra and electron spin resonance spectra before and after femtosecond laser irradiation are reported. The results indicate that the block has a low writing energy threshold, and it's propitious to high speed and parallel three-dimensional data storage. Experimental results of three-dimensional recording and reading with 4 &m in-plane pit spacing and 16 &m inter-plane spacing in four layers are presented using a conventional microscope. The relation between the size of the microexplosion pit and the laser pulse energy is discussed. For high storage density, smaller pulse energy is preferable while keeping enough grey value. It's proved that this material can be used in three-dimensional data storage.
Number of references:13
Main heading:Optical data storage
Controlled terms:Absorption spectroscopy - Irradiation - Laser pulses - Multilayers - Paramagnetic resonance - Polymers - Rare earth additions - Recording - Three dimensional
Uncontrolled terms:Electron spin resonance spectra - Femtosecond pulse - Grey value - Microexplosion - Multiphoton absorption - PMMA block - Pulse energy - Three dimensional data storage - Writing energy threshold
Classification code:815.1 Polymeric Materials - 744.1 Lasers, General - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 722.1 Data Storage, Equipment and Techniques - 701.2 Magnetism: Basic Concepts and Phenomena - 547.2 Rare Earth Metals
Treatment:Experimental (EXP)
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 22&
Accession number:32
Title:Study on fiber Bragg grating pressure sensor of high sensitivity based on chemical bonding between polymer and FBG
Authors:Wei, Ting (0); Qiao, Xueguang (0); Wang, Hongliang (0)
Corr. author affiliation:Xi'an institute of Optics and Precision Mechanics, The Chinese Academy of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:August 2006
Publication year:2006
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:A new approach for packed FBG (fiber Bragg grating) pressure sensor using chemical bonding technics between polymer and FBG was proposed and demonstrated. A kind of chemical bonding material was used to strengthen the bonding between fiber and polymer in order to improve the pressure response of FBG sensor. This technics resolved the problem of avulsion in high pressure due to the big difference elastic modulus between polymer and fiber. The experimental result indicated that, within 0.04 MPa~0.6 MPa, the pressure response sensitivity was -4. 48 nm / MPa and the resolution pressure measurement was &0. 01 MPa, which is 1463 times higher than that of the bare FBG. The linearity of the temperature response curves is 0. 9978. Reflection spectrum showed a steady figure through repeated measurement.
Number of references:8
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 23&
Accession number:69
Title:Research on the measurement of bubble velocity based on cross-correlation algorithm
Authors:Chen, Min (1); He, Junhua (1); Chen, Liangyi (1)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an 710068; (2) Graduate School, Chinese Academy of Sciences, Beijing 100039
Corresponding author:Chen, M.(chenmin@)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6344 II
Monograph title:Advanced Laser Technologies 2005
Issue date:2006
Publication year:2006
Article number:634432
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:Advanced Laser Technologies 2005
Conference date:September 3, 2005 - September 6, 2005
Conference location:Tianjin, China
Conference code:68108
Sponsor:SPIE Russia C Ministry of Education, Engineering Division, C Tianjin University, Science Technology Garden, C The Chinese Optical Society, C China Instrument and Control Society, China
Publisher:SPIE
Abstract:Cross-correlation algorithm is based on information theory and stochastic process theory. It has been widely used in many research fields, such as, medical ultrasound, ocean engineering, signal detection, modal parameters under ambient excitation, etc., but its applications in research of bubble curtains are seldom seen in domestic released periodicals, so our work is attempting to use cross-correlation algorithm. Through computing the velocity vector of bubble curtains, the bubble movement character can be known, i.e. the details of the bubble curtains can also be known. After comparing the differences between it and Doppler method, the cross-correlation algorithm has been applied to the measurement of bubble curtains parameters from a new aspect. The He-Ne laser and high-speed CCD camera are used to acquire the images of dancing bubbles, the velocities of bubbles are computed from image post-processed. Through improving conventional cross-correlation algorithm commonly used for analysis of flow field, the Fast Fourier Transform (FFT) has been used to implement the cross-correlation algorithm rapidly. In order to enhance the computing accuracy, Gaussian eurve fitting is used to modify the correlation peak location and the fitting equations are listed, so the bubbles displacement with subpixel accuracy is obtained. Noises are stochastically added from hardware when acquiring images and the cross-correlation algorithm may also introduce errors. The character of velocity vectors result can be entirely wrong with ambient vectors, so they must be corrected. In order to calibrate the cross-correlation algorithm, images with universal displacement are used to validate its feasibility and reliability. The algorithm is applied to the computation of parameters in bubble curtains, yielding the vector graph of bubble motion. The algorithm is expected to be a valuable tool in acquiring the real-time velocity information in bubble curtains.
Number of references:6
Main heading:Optical correlation
Controlled terms:Algorithms - Cameras - Charge coupled devices - Fast Fourier transforms - Ocean engineering - Random processes - Research and development management - Signal detection - Velocity measurement
Uncontrolled terms:Bubble curtains - Cross-correlation - Universal displacement
Classification code:943.3 Special Purpose Instruments - 922.1 Probability Theory - 921.3 Mathematical Transformations - 912.2 Management - 901.3 Engineering Research - 742.2 Photographic Equipment - 741.1 Light/Optics - 723 Computer Software, Data Handling and Applications - 716.1 Information Theory and Signal Processing - 714.2 Semiconductor Devices and Integrated Circuits - 472 Ocean Engineering
Treatment:Theoretical (THR)
DOI:10.435
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 24&
Accession number:0
Title:Passive depolariser based on artificial polarisation-dependent delay
Authors:Liu, J. (1); Fang, Q. (2); Yin, Y. (2); Liang, M. (2)
Author affiliation:(1) Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, C (2) Department of Electronic and Information Engineering, Xi'an Institute of Post and Telecom, Xi'an 710068, China
Corresponding author:Liu, J.(ljh_.cn)
Source title:Electronics Letters
Abbreviated source title:Electron. Lett.
Issue date:March 30, 2006
Publication year:2006
Pages:412-413
Language:English
CODEN:ELLEAK
Document type:Journal article (JA)
Publisher:Institution of Engineering and Technology
Abstract:A passive depolariser based on artificial polarisation-dependent delay is demonstrated. Experimental results show that a low degree of polarisation (&2%) and a low polarisation-dependent loss (0.08 dB) are obtained for any input state of polarisation.
Number of references:7
Main heading:Polarization
Controlled terms:Delay circuits - Electric potential - Passive networks - Threshold voltage
Uncontrolled terms:Artificial polarization-dependent delays - Low degree of polarization - Passive depolariser
Classification code:701.1 Electricity: Basic Concepts and Phenomena - 703.1 Electric Networks - 711.1 Electromagnetic Waves in Different Media - 713.5 Electronic Circuits Other Than Amplifiers, Oscillators, Modulators, Limiters, Discriminators or Mixers - 714.2 Semiconductor Devices and Integrated Circuits
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1049/el:
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 25&
Accession number:5
Title:Study of a new portable X-ray source with micro-beam
Authors:Wang, Kaige (1); Li, Ji (1); Yang, Qinlao (1); Guo, Jinchuan (1); Guo, Baoping (1); Kuo, Xiaomei (1); Zhou, Junlan (1); Niu, Hanben (1)
Author affiliation:(1) Institute of Optoelectronics, Shenzhen University, Shenzhen, 518060, C (2) Xi'an Institute of Optics and Precision Mechanics, CAS, Xi'an 710068, China
Corresponding author:Wang, K.()
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6149
Volume title:2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies
Issue date:2006
Publication year:2006
Article number:61491Z
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies
Conference date:November 2, 2005 - November 5, 2005
Conference location:Xian, China
Conference code:67254
Sponsor:Chinese Optical Society, COS, C The Institute of Optics and Electronics, CAS, C SPIE
Publisher:SPIE
Abstract:A novel X-ray source with micro-beam has been studied in theory and experiment. The source is composed of three portions: LaB&inf&6&/inf& crystal cathode electron gun emitting system, electrostatic focusing system, and permutable metal target system. The electronic current emitted by the electron-gun are controlled by modulating cathode temperature and Wehnelt grid voltage and ratio D&inf&w&/inf&/H, two-equal-radius-cylinder-electrodes focusing system concentrates electron beam, the X-ray photons are irradiated by high energy electron beam bombarding the metal target. The new x-ray source's general-purpose capabilities such as continuous radiation and pulse radiation, focus size and luminance, are also tested. When the temperature of LaB &inf&6&/inf& cathode is about 1900K and partial pressures being kept below 10&sup&-7&/sup& torr, the minimal focus diameter is merely about 10 microns. The new micro focus x-ray source has other lots of advantages such as economy, safety and facility.
Number of references:7
Main heading:X ray analysis
Controlled terms:Cathodes - Electron beams - Electron emission - Electron guns - Electrostatics - Ion bombardment - Lanthanum compounds
Uncontrolled terms:Electrostatic focusing system - High brightness - LaB&inf&6&/inf& cathode electron-gun emitting system - Monte-Carlo simulation - X-ray source with micron beam
Classification code:932.1 High Energy Physics - 931.3 Atomic and Molecular Physics - 804.2 Inorganic Compounds - 714.1 Electron Tubes - 704.1 Electric Components - 701.1 Electricity: Basic Concepts and Phenomena - 421 Strength of Building M Mechanical Properties
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.261
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 26&
Accession number:6
Title:Precise processing of transparent material with femtosecond laser pulses
Authors:Ma, Lin (1); Shi, Shunxiang (1); Cheng, Guanghua (2); Zhao, Wei (2); Chen, Guofu (2)
Author affiliation:(1) Lab 501, School of Technical Physics, Xidian University, Xi an 710071, C (2) State Key Laboratory of Transient Optics and Technology, Xi' an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Corresponding author:Ma, L.(ml-)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6149
Volume title:2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies
Issue date:2006
Publication year:2006
Article number:614935
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies
Conference date:November 2, 2005 - November 5, 2005
Conference location:Xian, China
Conference code:67254
Sponsor:Chinese Optical Society, COS, C The Institute of Optics and Electronics, CAS, C SPIE
Publisher:SPIE
Abstract:Based on the physical mechanisms of femtosecond laser-transparent materials interactions, three kinds of micromachining including three dimensional data storage, optical waveguide network and grating with an amplified Ti:sapphire laser system are presented. These optical devices on different transparent materials by femtosecond pulses are featured. The effect of laser machined parameters such as irradiated energy, the scanning speed and the recording material upon fabricated optical devices is studied in detail. From examples, the versatility of femtosecond laser precise micromachining technique is demonstrated. Practical application of femtosecond laser materials processing is illuminated.
Number of references:16
Main heading:Laser pulses
Controlled terms:Data storage equipment - Diffraction gratings - Micromachining - Optical waveguides - Transparency
Uncontrolled terms:Femtosecond laser pulse - Laser precise processing - Ti:sapphire laser system - Transparent materials
Classification code:604.2 Machining Operations - 714.3 Waveguides - 722.1 Data Storage, Equipment and Techniques - 741.1 Light/Optics - 741.3 Optical Devices and Systems - 744.1 Lasers, General
Treatment:Theoretical (THR)
DOI:10.323
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 27&
Accession number:38
Title:Experimental study on dark photovoltaic solitons
Authors:Li, Jinping (0); Lu, Keqing (0); Zhao, Wei (0); Yang, Yanlong (0); Zhu, Xiangping (0); Guo, Xiaohui (0); Song, Jianping (0); Zhang, Yanpeng (0)
Corr. author affiliation:State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academic of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:August 2006
Publication year:2006
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:Spatially partially incoherent and coherent dark photovoltaic solitons are comprehensively experimentally studied with phase masks in LiNbO&sub&3&/sub& : Fe crystals. One-dimension and two-dimension dark photovoltaic solitons are observed with spatially partially incoherent and coherent beam, which result from the bulk photovoltaic effect and when diffraction is exactly balanced by photorefractive self-defocusing. The analysis of theory and experiments shows that dark photovoltaic solitons depend on the direction of propagation, orientation of the intensity gradient, with respect to the crystalline axes of the medium. Under certain conditions, the steady-state spatially partially incoherent dark photovoltaic solitons can be observed.
Number of references:14
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 28&
Accession number:03
Title:Goos-hänchen-like displacement of light beams transmitting through periodical multiple layered structures
Authors:Zhu, Qi-Biao (1); Li, Chun-Fang (1); Chen, Xi (1)
Author affiliation:(1) Department of Physics, Shanghai University, Shanghai 200444, C (2) State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Academia Sinica, Xi'an 710068, China
Corresponding author:Li, C.-F.(cfli@)
Source title:Proceedings of International Symposium on Biophotonics, Nanophotonics and Metamaterials, Metamaterials 2006
Abbreviated source title:Proc. Int. Symp. Biophotonics, Nanophotonics Metamaterials
Monograph title:Proceedings of International Symposium on Biophotonics, Nanophotonics and Metamaterials, Metamaterials 2006
Issue date:2006
Publication year:2006
Pages:384-387
Article number:4134828
Language:English
Document type:Conference article (CA)
Conference name:International Symposium on Biophotonics, Nanophotonics and Metamaterials, Metamaterials 2006
Conference date:October 16, 2006 - October 18, 2006
Conference location:Hangzhou, China
Conference code:72399
Publisher:Inst. of Elec. and Elec. Eng. Computer Society, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ , United States
Abstract:It is investigated that the Goos-Ha&nchen-like displacement of light beams transmitting through periodical multiple-layered structures can be negative as well as positive. The numerical simulations for Gaussian-shaped beam are made to demonstrate the validity of the stationary phase approach. & 2006 IEEE.
Number of references:28
Main heading:Gaussian beams
Controlled terms:Chromatographic analysis - Computer simulation - Electromagnetic field theory - Electromagnetic fields - Electromagnetism - Magnetism - Materials science - Photonics
Uncontrolled terms:Bio photonics - gaussian - International symposium - Layered structured - light beams - Metamaterials (MTM) - Nano-photonics - Numerical simulations - Shaped beams - Stationary phase approach
Classification code:951 Materials Science - 801 Chemistry - 741.1 Light/Optics - 723.5 Computer Applications - 711 Electromagnetic Waves - 701.2 Magnetism: Basic Concepts and Phenomena - 701 Electricity and Magnetism
DOI:10.1109/METAMAT.
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 29&
Accession number:6
Title:Spatial evolution of multiple filaments in air induced by femtosecond laser pulses
Authors:Hao, Zuo-Qiang (1); Zhang, Jie (1); Lu, Xin (1); Xi, Ting-Ting (1); Li, Yu-Tong (1); Yuan, Xiao-Hui (1); Zheng, Zhi-Yuan (1); Wang, Zhao-Hua (1); Ling, Wei-Jun (1); Wei, Zhi-Yi (1)
Author affiliation:(1) Key Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, C (2) State Key Laboratory of Transient Optics Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Corresponding author:Hao, Z.-Q.
Source title:Optics Express
Abbreviated source title:Opt. Express
Issue date:January 23, 2006
Publication year:2006
Pages:773-778
Language:English
Document type:Conference article (CA)
Publisher:Optical Society of America
Abstract:The spatial evolution of plasma filaments in air induced by femtosecond laser pulses is investigated experimentally. Several major filaments and small scaled additional filaments are detected in the plasma channel. The complicated interaction process of filaments as splitting, fusion and spreading is observed. The major filaments propagate stably, and the small scaled additional filaments can be attracted to the major filaments and merged with them. The major filaments are formed due to the perturbation of initial beam profile and the small scaled filaments are mainly caused by the transverse modulational instability. & 2006 Optical Society of America.
Number of references:31
Main heading:Laser pulses
Controlled terms:Fusion reactions - Laser beams - Perturbation techniques - Plasma devices
Uncontrolled terms:Femtosecond laser pulses - Initial beam profile - Interaction process - Transverse modulational instability
Classification code:744.1 Lasers, General - 744.8 Laser Beam Interactions - 932.2.1 Fission and Fusion Reactions - 932.3 Plasma Physics
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.1364/OPEX.14.000773
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 30&
Accession number:21
Title:Ultra-rapid-scanning imaging interferometer
Authors:Zhang, Wenxi (0); Xiangli, Bin (0); Yuan, Yan (0); Tao, Ran (0); Du, Shusong (0); Chen, Xi (0); Su, Lijuan (0)
Corr. author affiliation:Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710068, China
Source title:Guangzi Xuebao/Acta Photonica Sinica
Abbreviated source title:Guangzi Xuebao
Issue date:August 2006
Publication year:2006
Language:Chinese
CODEN:GUXUED
Document type:Journal article (JA)
Publisher:Chinese Optical Society, Xi'an, China
Abstract:The principle of ultra-rapid-scanning Interferometer is introduced and a new kind of ultra-rapid-scanning imaging interferometer based on the principle is provided. The imaging interferometer has a wider angle of field and higher scan efficiency. The character of the imaging interferometer is that it has a rotating planner reflector with an angle of inclination instead of the straight-line planner reflector in Michelson interferometer. The questions of lower scan efficiency and instability are well solved in Michelson interferometer.
Number of references:6
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
&RECORD 31&
Accession number:9
Title:Study of the optical properties of ZnO thin films prepared by laser molecular beam epitaxy
Authors:Zhongfeng, Xu (1); Kairu, Ju (1); Qing'an, Xu (2)
Author affiliation:(1) School of Science, Xi'an Jiaotong University, Xi'an, 710049, C (2) Xi'an Institute of Optics and Precision Mechanics, Xi'an, 710068, China
Corresponding author:Zhongfeng, X.(zhfxu@mail.)
Source title:Proceedings of SPIE - The International Society for Optical Engineering
Abbreviated source title:Proc SPIE Int Soc Opt Eng
Volume:6149
Volume title:2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies
Issue date:2006
Publication year:2006
Article number:61491T
Language:English
ISSN:0277786X
CODEN:PSISDG
Document type:Conference article (CA)
Conference name:2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies
Conference date:November 2, 2005 - November 5, 2005
Conference location:Xian, China
Conference code:67254
Sponsor:Chinese Optical Society, COS, C The Institute of Optics and Electronics, CAS, C SPIE
Publisher:SPIE
Abstract:ZnO thin films are prepared on sapphire (0001) substrate by laser molecular beam epitaxy (L-MBE) and the optical properties were studied. It is found that the growth conditions and the treat process have obvious effect on the optical properties of ZnO films. With the increase of the growth oxygen pressure, the concentration of the structural defects in ZnO films caused by the disbalance of Zn and O stoichiometric proportion is depressed effectively. As a result, the UV emission intensity grows much higher, but the deep level (DL) emission is depressed. Sample 1#, 2#, and 3# were grown at oxygen pressure 2.0E-3Pa, 8.0E-3Pa, 2.0E-2Pa respectively, and the ratio of the UV emission intensity and the DL emission intensity were 1.00, 2.34, 3.31 respectively. The effect of annealing treatment on the transmission spectra of ZnO films was also studied. Sample 1# was cut into three parts and annealed at 500&C, 600&C, 700&C respectively in the air atmosphere. The transmittivity in the visible range become much greater after annealing and the higher the annealing temperature is, the higher the transmittivity becomes. When annealed at 700&C, the transmittivity has nearly doubled.
Number of references:8
Main heading:Thin films
Controlled terms:Annealing - Concentration (process) - Molecular beam epitaxy - Optical properties - Sapphire - Stoichiometry - Zinc oxide
Uncontrolled terms:Annealing treatment - L-MBE - Oxygen pressure - Transmission spectrum - ZnO thin film
Classification code:933.1.2 Crystal Growth - 931.3 Atomic and Molecular Physics - 804.2 Inorganic Compounds - 802.3 Chemical Operations - 801.4 Physical Chemistry - 741.1 Light/Optics - 714.2 Semiconductor Devices and Integrated Circuits - 537.1 Heat Treatment Processes - 482.2.1 Gems
Treatment:Theoretical (THR); Experimental (EXP)
DOI:10.255
Database:Compendex
Compilation and indexing terms, Copyright 2014 Elsevier Inc.
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Accession number:38
Title:Coherent radiation of picosecond ultra-short electromagnetic pulse radiated by antenna arrays
Authors:Ruan, Chi (1); Zhao, Wei (1); Chen, Guofu (1); Zhu, Shaolan (1); Liu, Baiyu (1)
Author affiliation:(1) State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, 324 YouYiXiLu Road, Xi'an, Shaanxi, 710068, China
Corresponding author:Ruan, C.(ruanchi@)
Source title:IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Teraher}