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Journals >
Chinese Journal of Lasers
Contents
1981
Volume: 8 Issue 2
27 Article(s)
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Research Article
[in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 1 (1981)
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Laser Devices and Laser Physics
Theory of Q-switched pulse train laser
Wang Qingyue
Starting from the well-known rate equations, population accumulation and loss process during a period of time for a pulse train laser are analysed and a population equation describing pulse train laser is formulatel As a consequence, analytical expressions of its performance parameters such as output energy, peak power
Starting from the well-known rate equations, population accumulation and loss process during a period of time for a pulse train laser are analysed and a population equation describing pulse train laser is formulatel As a consequence, analytical expressions of its performance parameters such as output energy, peak power, pulse width and delay time can be derived from the period of time tT and effective pumping rate B as variables..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 1 (1981)
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Properties of steady discharge in Ar-Kr-F
2
gas mixture
Zheng Chengen
In this paper, some plasma properties of Ar-Kr-F2 gas mixtures are calculated and discussed under the condition of steady discharge.
In this paper, some plasma properties of Ar-Kr-F2 gas mixtures are calculated and discussed under the condition of steady discharge..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 5 (1981)
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Laser cooling of gas atoms by optical frequency shifts
Wang Yuzhu
A proposal is presented for cooling gas atoms through optical frequency shifts produced under the illumination of laser light.
A proposal is presented for cooling gas atoms through optical frequency shifts produced under the illumination of laser light..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 10 (1981)
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An acousto-optic actively mode-locked argon ion laser
Dong Xiaoyi, Guan Xinan, Liu Zhiyuo, Lu Fuyun, Sheng Qiuqing, Xia Sunbao, Yuan Shuzhong, and Li Ping
By acousto-optie AM modulation, actively mode-locking experiment on argon ion laser have been performed. Ultra-short pulse trains have been observed with a measured pulse width of 800 ps and a repetition frequency of 103 MHz. The influences of modulation depth and tuning out have been measured. The experimental results
By acousto-optie AM modulation, actively mode-locking experiment on argon ion laser have been performed. Ultra-short pulse trains have been observed with a measured pulse width of 800 ps and a repetition frequency of 103 MHz. The influences of modulation depth and tuning out have been measured. The experimental results and the thoretical calculations are in good agreement..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 13 (1981)
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A UV-preionized ArF and KrF excimer laser
Shang Guancheng, Yuan Cailai, Ye Chao, and Dou Airong
UV-preionzed ArF and KrF excimer lasers are reported. Maximum pulse energies of 105 mJ in ArF and 185 mJ in KrF were extracted. In this paper we discuss the effect of various parameters on laser performances.
UV-preionzed ArF and KrF excimer lasers are reported. Maximum pulse energies of 105 mJ in ArF and 185 mJ in KrF were extracted. In this paper we discuss the effect of various parameters on laser performances..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 17 (1981)
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Thermo-optic properties of anisotropic laser crystals
Lin Fucheng, and Zhang Shanshan
Temperature distribution and thermal flow direction of the laser crystal rod of anisotropic thermal conductivity was studied. Elliptical isothermal contours and thermal energy of non-radial flow were obtained. It is pointed out that the transverse thermal conductivity is isotropic on a certain direction of laser rod. A
Temperature distribution and thermal flow direction of the laser crystal rod of anisotropic thermal conductivity was studied. Elliptical isothermal contours and thermal energy of non-radial flow were obtained. It is pointed out that the transverse thermal conductivity is isotropic on a certain direction of laser rod. A simple model was used to analyse the phenomenon of thermally induced birefringence of YAlO3 laser crystal rod. Interference pattern of cross polarization for c-axis YAlO3are two sets of hyperbolas, and for b-axis YA1O3 ellipse. The observed results can be explained satisfactorily by theory..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 21 (1981)
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Moire transformation and phase measurement(Ⅰ)
Liu Liren, Yin Yaozhu, Zhao Liyin, and Xu Chenliang
The moire transformation was analysed using communication theory. Based on it, we proposed two new types of phase measurement. The first is a carrier interferometer. It has various applications and advantages, for example, automatic compensation, multiplex recording, shearing of a wavefront, relative compensation of th
The moire transformation was analysed using communication theory. Based on it, we proposed two new types of phase measurement. The first is a carrier interferometer. It has various applications and advantages, for example, automatic compensation, multiplex recording, shearing of a wavefront, relative compensation of the phase variation in dynamic texts, harmonic interference, etc. The second is a coded mask photographic interferometer using white light. It can be used for measuring strongly varied phase objects..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 27 (1981)
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Calibration of absolute sensitivity of phototubes
Nie Chaojiang
A simple method for determining absolute sensitivity of phototube is described.
A simple method for determining absolute sensitivity of phototube is described..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 33 (1981)
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Laser speckle diffraction and measurement of speckle intensity
Lu Shiaoqing, and Zhao Shuqing
An experiment on laser speckle diffraction and measurement of speckle intensity has been conducted. The results show that the Fraunhofer diffraction pattern or quasi-Fraunhofer diffraction pattern of the measurement aperture may be observed, when the raito of the average speckle diameter to the aperture diameter is equ
An experiment on laser speckle diffraction and measurement of speckle intensity has been conducted. The results show that the Fraunhofer diffraction pattern or quasi-Fraunhofer diffraction pattern of the measurement aperture may be observed, when the raito of the average speckle diameter to the aperture diameter is equal to or larger than one, dr/d0>1. When dr/d0>>1, the negative exponential probability density function of speckle may be obtained, and the speckle contrast may be used to characterize the scattering surface roughness..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 36 (1981)
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Color center lasers and their potential applications
Shi Hanqian, and Wu Guangzhao
The development of F-like center lasers and their potential applications are reviewed in this paper.
The development of F-like center lasers and their potential applications are reviewed in this paper..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 43 (1981)
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Pulsed Nd:YAG output of single spectral lines at 1.064,1.073, 1.061 and 1.052 μm
[in Chinese], and [in Chinese]
Single spectral lines at 1.064, 1.073, 1.061 and 1.052m wore obtained respectively by inserting into the cavity the uncoated(or coated)solid etalons of 0.1 mm or both 0.1 mm and 0.14 mm thickness and appropriately controlling the gain of Nd:YAG laser and tilted angles of the etalons.
Single spectral lines at 1.064, 1.073, 1.061 and 1.052m wore obtained respectively by inserting into the cavity the uncoated(or coated)solid etalons of 0.1 mm or both 0.1 mm and 0.14 mm thickness and appropriately controlling the gain of Nd:YAG laser and tilted angles of the etalons..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 47 (1981)
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A TEA CO
2
laser with air as gas source
[in Chinese], [in Chinese], and [in Chinese]
A TEA CO2 laser with air as gas source is reported. Its parameters are comparable to those obtained with industrial CO2 and N2 as gas source. A description is given of the structure and the features of the gas generator and the experimental results.
A TEA CO2 laser with air as gas source is reported. Its parameters are comparable to those obtained with industrial CO2 and N2 as gas source. A description is given of the structure and the features of the gas generator and the experimental results..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 49 (1981)
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Selective corrosion and selective growth of GaAs crystals
[in Chinese], and [in Chinese]
Characteristics observed both in selective corrosion and selective growth of GaAs crystals are reported.
Characteristics observed both in selective corrosion and selective growth of GaAs crystals are reported..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 50 (1981)
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Hermetic diffusion sealing of GKZ-A quartz and tungsten at high temperatures
[in Chinese], [in Chinese], and [in Chinese]
A glass directly sealed with tungsten at high temperatures is introduced. A brief description of the glass composition, performances and mechanism for sealing with tungsten is given.
A glass directly sealed with tungsten at high temperatures is introduced. A brief description of the glass composition, performances and mechanism for sealing with tungsten is given..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 52 (1981)
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Optical differential processingof images
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
This paper presents the principle, method and experimental results in developing differential filter and image differential processing by means of optical transformation technique and coherent optical correlation method, and offers our considerations of stroke-classification of Chinese characters and picking up Chinese
This paper presents the principle, method and experimental results in developing differential filter and image differential processing by means of optical transformation technique and coherent optical correlation method, and offers our considerations of stroke-classification of Chinese characters and picking up Chinese characters to be realized by optical partial differential and optical image correlation technique..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 54 (1981)
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An instrument for exact optical reposition
[in Chinese], and [in Chinese]
A mechanical instrument of high reposition accuracy is reported. It has simple structure and can be made easily. The accuracy of reposition is up to the order of a few microns. It is an efficient tool for optical information processing in the reposition of complex spatial filters.
A mechanical instrument of high reposition accuracy is reported. It has simple structure and can be made easily. The accuracy of reposition is up to the order of a few microns. It is an efficient tool for optical information processing in the reposition of complex spatial filters..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 55 (1981)
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A new type feedback-controlled currentstabilized power supply for gas lasers
[in Chinese], [in Chinese], and [in Chinese]
A feedback-controlled current stabilized power supply for CO2 wave-guide lasers is reported. Current is stabilized in the range of 2~4 mW, the unstability of the current is lass than 1 % with respect to 20% fluctuation of network voltage.
A feedback-controlled current stabilized power supply for CO2 wave-guide lasers is reported. Current is stabilized in the range of 2~4 mW, the unstability of the current is lass than 1 % with respect to 20% fluctuation of network voltage..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 56 (1981)
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[in Chinese]
[in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 58 (1981)
Get PDF
[in Chinese]
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 58 (1981)
Get PDF
[in Chinese]
[in Chinese], [in Chinese], and [in Chinese]
.
showLess
Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 59 (1981)
Get PDF
[in Chinese]
[in Chinese], [in Chinese], and [in Chinese]
.
showLess
Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 59 (1981)
Get PDF
[in Chinese]
[in Chinese]
.
showLess
Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 60 (1981)
Get PDF
[in Chinese]
[in Chinese], [in Chinese], and [in Chinese]
.
showLess
Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 60 (1981)
Get PDF
[in Chinese]
[in Chinese], and [in Chinese]
.
showLess
Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 61 (1981)
Get PDF
[in Chinese]
[in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 62 (1981)
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[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 8, Issue 2, 63 (1981)
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Laser Devices and Laser Physics