Journals >Chinese Journal of Lasers
Contents
1988
Volume: 15 Issue 3
21 Article(s)
Export citation format
Research Article
Theoretical analysis of highest space-frequency formula on holographic grating structure with wide angle and great scene
Tin Jianping, and Lu Junfa
According to the equation on peak intensity plane of 3-D interference fringe, a general formula on the highest space-frequency of holographic grating structure with wide angle and great scene is derived, analyses on reasonable choice of recording parameter in the holographic experiment of wide angle and great scene is According to the equation on peak intensity plane of 3-D interference fringe, a general formula on the highest space-frequency of holographic grating structure with wide angle and great scene is derived, analyses on reasonable choice of recording parameter in the holographic experiment of wide angle and great scene is discussed, and the corresponding experimental results are given..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 141 (1988)
Investigation on thermal relaxation rates of vibrational levels (0001） and (1000） of CO2 moleculea by OGE
Gui Zhenxing, Zhang Shunyi, Shen Guirong, and Wang Runwen
The thermal relaxation rates of the vibrational levels (0001) and (1000) of CO2 molecules in a discharged positive .column have been measured by OGE. The dependences of the thermal relaxation rates on the incident intensity, discharge current, pressure and foreign gasea have also been investigated. The approximate valuThe thermal relaxation rates of the vibrational levels (0001) and (1000) of CO2 molecules in a discharged positive .column have been measured by OGE. The dependences of the thermal relaxation rates on the incident intensity, discharge current, pressure and foreign gasea have also been investigated. The approximate values of T001 and T100 obtained are 0.6-1.5 ms and 0.2-0.8 ms respectively..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 145 (1988)
Image subtraction based on multi-exposure speckle technique
Bong Haisheng, and Kang Hui
The property of multi-exposure recording of dichromated gelatin (DCG) enabled us to practice the image subtraction "based on multi-exposure speckle technique experimentally. The presented theoretical analyses are in good agreement with the experimental results.The property of multi-exposure recording of dichromated gelatin (DCG) enabled us to practice the image subtraction "based on multi-exposure speckle technique experimentally. The presented theoretical analyses are in good agreement with the experimental results..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 149 (1988)
Experimental study of self-generated magnetic field in corona area of laser plasmas
Zhang Huihuang, Lin Zunqi, Wang Xiaoqin, and Shi Aying
Self-generated magnetic field in the corona area of laser plasmas has been measured using Faraday-rotation method of 630.3 nm probe beam. Experimental results prove that "thermal force source" which Golombant has suggested theoritically is one of the imprortant sources which produce self-generated magnetic fiSelf-generated magnetic field in the corona area of laser plasmas has been measured using Faraday-rotation method of 630.3 nm probe beam. Experimental results prove that "thermal force source" which Golombant has suggested theoritically is one of the imprortant sources which produce self-generated magnetic field..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 153 (1988)
Image improvement of high resolution electron micrographs with spatial rotational variant system by optical means
Shen Xiaoqing, Zheng Shihai, and Li Fanghua
Ways are put forward for making amplitude filters by picking out the phase transfer function and for making phase filter by grating and hologram. Tranfer function independent of frequency for electron micrograph deconvolution is obtained, which improves the resolution of electron micrograph.Ways are put forward for making amplitude filters by picking out the phase transfer function and for making phase filter by grating and hologram. Tranfer function independent of frequency for electron micrograph deconvolution is obtained, which improves the resolution of electron micrograph..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 156 (1988)
Study of mode-locked dynamics of picosecond lasers by streak camera
Wang Shuicai
This paper reports the investigation of mode-locked dynamics of passively mode-locked dye lasers by picosecond streak camera and the optimization of passively mode-locked dye laser operation is obtained.This paper reports the investigation of mode-locked dynamics of passively mode-locked dye lasers by picosecond streak camera and the optimization of passively mode-locked dye laser operation is obtained..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 186 (1988)
An experimental laser measurement equipment for fluorescent spectral analysis of silkworm cocoons
Jiang Chengxi
The structure of an experimental laser measurement equipment fluorescent spectral analysis of silkworm cocoons and selection of its main optical elements are briefly described.The structure of an experimental laser measurement equipment fluorescent spectral analysis of silkworm cocoons and selection of its main optical elements are briefly described..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 187 (1988)
Laser Manufacturing
Laser cladding of NiCrSiB alloy
Yang Xichen, Yan Yuhe, Wang Xingkai, and Gu Hongwu
High power laser cladding of NiGrSiB alloy on A3 steel plate was performed. Surface with excellent performances of high creep and oxidation resistance equivalent to nikel base superalloy K5 has been obtained. The superlattice BNigSi and the long-period structure were first observed in NiOrSiB alloy laser cladding casinHigh power laser cladding of NiGrSiB alloy on A3 steel plate was performed. Surface with excellent performances of high creep and oxidation resistance equivalent to nikel base superalloy K5 has been obtained. The superlattice BNigSi and the long-period structure were first observed in NiOrSiB alloy laser cladding casings..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 174 (1988)
Micrometer-order displacement measurement of vibrating objects with laser Doppler effect
Zhou Shuquan
This paper presents the experimental results in measuring a micrometer order displacement of vibrating objects based on laser-Doppler effect.This paper presents the experimental results in measuring a micrometer order displacement of vibrating objects based on laser-Doppler effect..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 191 (1988)
Laser Physics
Investigation of picosecond blue laser emission from chlorophyll molecules
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
This paper reports the experimental set up and results of the picosecond blue laser emission generated from ultrashort cavity chlorophyll (chl) dye laser excited by inter-molecular energy transfer from excited coumarin (co) molecules to chl a and b pigment molecules.This paper reports the experimental set up and results of the picosecond blue laser emission generated from ultrashort cavity chlorophyll (chl) dye laser excited by inter-molecular energy transfer from excited coumarin (co) molecules to chl a and b pigment molecules..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 129 (1988)
Radiation of dye mixtures pumped by N2 laser
Lei Jie, and Fu Honglang
The emission spectra of four dye mixtures pumped by N2 laser are studied. These mixtures are rhodamine 6G+crestyl violet, rhodamine B+crestyl violet, rhodamine 6G +rhodamine B and rhodamine 6G+rhodamine B+cz-estyl violet. The energy transfer processes in the mixtures are discussed. It has been shown that the broadeningThe emission spectra of four dye mixtures pumped by N2 laser are studied. These mixtures are rhodamine 6G+crestyl violet, rhodamine B+crestyl violet, rhodamine 6G +rhodamine B and rhodamine 6G+rhodamine B+cz-estyl violet. The energy transfer processes in the mixtures are discussed. It has been shown that the broadening tuning range of dye lasers, the increase of laser efficiency of some dyes and dual wavelength laser oscillation in the dye mixtures are feasible..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 134 (1988)
Investigation of output lines of intracavity CO2 lasers
Wang Bo
Based on the waveguide laser theory, output lines and line-chopping phenomenon of intracavity CO2 lasers with =3~6mm and N-1arestudied.lt shows the result of the participation of waveguide mode loss d11 in the line competition process.Based on the waveguide laser theory, output lines and line-chopping phenomenon of intracavity CO2 lasers with =3~6mm and N-1arestudied.lt shows the result of the participation of waveguide mode loss d11 in the line competition process..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 138 (1988)
Study on Raman spectra of KTiOPO4 crystals
Li Lima, Wang Jiyang, Han Jianru, and Liu Yaogang
Eaman spectra of nonlinear crystal KTiOPO4 of superior quality are reported. Various mo’des of vibration are obtained with different kinds of geometry, and their relative Raman tensor intensities are determined, and the relationship between the spectra and its crystal structure is discussed.Eaman spectra of nonlinear crystal KTiOPO4 of superior quality are reported. Various mo’des of vibration are obtained with different kinds of geometry, and their relative Raman tensor intensities are determined, and the relationship between the spectra and its crystal structure is discussed..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 162 (1988)
Squeezing in superradiance
Gu Qiao
Starting with the equations for nonlinear pendulum by which superradianca can be approached the analytical expression for superradiant field dispersion is abtained by means of the quantum result for initially squeezing in’ superradianee, the dependence of squeezing on both time and initial conditions are discussed and Starting with the equations for nonlinear pendulum by which superradianca can be approached the analytical expression for superradiant field dispersion is abtained by means of the quantum result for initially squeezing in’ superradianee, the dependence of squeezing on both time and initial conditions are discussed and the optimum squeezing point has been found..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 166 (1988)
Cooperative effects of near-resonance electronic Raman scattering in Pb vapor
Huo Yunsheng, Dong Jinxing, Ding Zean, and Lou Qihong
Cooperative effects were observed in the near-resonance electronic Baman scattering experiments of XeCl excimer laser pulses in Pb vapor. The Baman-radiation pulse shapes obtained by numerically solving the two-level Bloch-Maxwell equations were found to be qualitatively consistent with the experimental results.Cooperative effects were observed in the near-resonance electronic Baman scattering experiments of XeCl excimer laser pulses in Pb vapor. The Baman-radiation pulse shapes obtained by numerically solving the two-level Bloch-Maxwell equations were found to be qualitatively consistent with the experimental results..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 170 (1988)
Helium-neon laser lifetime computed by best linear undistorted estimation
[in Chinese], and [in Chinese]
The data was treated with best linear undistorted estimation (BLUE)and the lifeteime of He-Ne laser was computed, the results were in good agreement with the experimental ones.The data was treated with best linear undistorted estimation (BLUE)and the lifeteime of He-Ne laser was computed, the results were in good agreement with the experimental ones..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 179 (1988)
Laser output of nile blue A sulfate-xanthene in ethyl alcohol under coaxial f lashlamp pumping
Zhang Fugeng, and Yu Chunlian
Experimental results of laser output of nile blue A sulfate-xathene in ethyl aloohol under coaxial flasHamp pumping are reported. Owing to the sensitization effect of rilodamine 6G the laser conversion efficiency of nile bule sulfate has been increased by 80%Experimental results of laser output of nile blue A sulfate-xathene in ethyl aloohol under coaxial flasHamp pumping are reported. Owing to the sensitization effect of rilodamine 6G the laser conversion efficiency of nile bule sulfate has been increased by 80%.
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 181 (1988)
Study on a single- flashlamp and double-ruby-rod laser
Zhu Yanbin, Tang Chuanjin, Hong Ling, Sun Qiang, and Li Guangling
A single-flashlamp and donble-ruby-rod laser is made. Its design consideration and structural feature are presented and its output synchronism of double laser beams is discussed preliminarily.A single-flashlamp and donble-ruby-rod laser is made. Its design consideration and structural feature are presented and its output synchronism of double laser beams is discussed preliminarily..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 183 (1988)
A practical low-cost gold vapor laser
Cai Boling, Lin Xiangda, Jiang Zongqin, and Li Feng
The design of a practical, low-cost gold vapor laser with simple structure is described. Maximum average power of 700 mW in 627.8 nm red light has been obtained for a small active volume of 33 cm*. During 450 hours of operation the laser device of such a design worked reliably.The design of a practical, low-cost gold vapor laser with simple structure is described. Maximum average power of 700 mW in 627.8 nm red light has been obtained for a small active volume of 33 cm*. During 450 hours of operation the laser device of such a design worked reliably..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 184 (1988)
Absorptive optical bistability in InSb
Luan Shaojin, Chen Buihua, and Tan Weihan
Absorptive optical bistability in InSb has been observed. The functional relation and graphic analysis of incoherent mirrorless optical bistability are given. Tha analytical method used here can be extended to other bistable systems. The theory is in good agreement with the experimental results.Absorptive optical bistability in InSb has been observed. The functional relation and graphic analysis of incoherent mirrorless optical bistability are given. Tha analytical method used here can be extended to other bistable systems. The theory is in good agreement with the experimental results..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 15, Issue 3, 189 (1988)
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20