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Journals >
Chinese Journal of Lasers
Contents
1983
Volume: 10 Issue 3
19 Article(s)
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Research Article
[in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 1 (1983)
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Laser Devices and Laser Physics
Numerical modeling of pulsed F
2
/H
2
chain reaction lasers
Chen Xirong, Wang Zhongcheng, Ge Shujie, Zhang Curihao, Li Mu, and Li Zhongyuan
A simple model for photoinitiated F2/H2 chain reaction lasers is presented, which replenishes some deficiencies of Kerber’s model. The compatibility of time coordinates between the laser flux equations of V-R transitions and the kinetic rate equations has been solved. By using Gear’s automatic integration method, satis
A simple model for photoinitiated F2/H2 chain reaction lasers is presented, which replenishes some deficiencies of Kerber’s model. The compatibility of time coordinates between the laser flux equations of V-R transitions and the kinetic rate equations has been solved. By using Gear’s automatic integration method, satisfactory numerical results have been obtained. The effects of prereaction of F2/H2 mixtures, of O2 content and of photoinitiator on pulsed HF laser performances are presented..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 129 (1983)
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CW CO
2
laser annealing of arsenic implanted silicon
Lin Chenglu, Lin Zixin, Zou Shichang, Fan Baohua, and Wu Hengxian
Stationary irradiation of high power CW CO2 laser is used for annealing of arsenic ion implanted silicon. The experimental results indicate complete recovery of crystal damage, high substitution and electrical activation of implanted arsenic atoms. The surface deformation of silicon wafer during scanning by focused las
Stationary irradiation of high power CW CO2 laser is used for annealing of arsenic ion implanted silicon. The experimental results indicate complete recovery of crystal damage, high substitution and electrical activation of implanted arsenic atoms. The surface deformation of silicon wafer during scanning by focused laser beam has been eliminated..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 136 (1983)
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Electron energy distribution in CO
2
laser mixtures
Xie Peiliang, Wang Yuzhi, and Dong Jingxing
The distribution function of electron energy is obtained from the second harmonic component of the probe current. The influence of the additives N2, He, Xe on the electron energy distribution in CO2 laser mixtures are studied, and the average electron energy is obtained.
The distribution function of electron energy is obtained from the second harmonic component of the probe current. The influence of the additives N2, He, Xe on the electron energy distribution in CO2 laser mixtures are studied, and the average electron energy is obtained..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 140 (1983)
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Quantum efficiency and absorption recovery time of pentamethylidyne and undecamethylidyne dyes
Qiu Peihua, and Chen Shuchun
In this paper we discuss the spectral properties of two organic dyes: pentame-thylidyne and undecamethylidyne. The absorption cross-section σ, radiation lifetime ττ and fluorescence quantum efficiency η are determined from the measured absorption-and fluorescence spactra. On the basis of these parameters the mode-locki
In this paper we discuss the spectral properties of two organic dyes: pentame-thylidyne and undecamethylidyne. The absorption cross-section σ, radiation lifetime ττ and fluorescence quantum efficiency η are determined from the measured absorption-and fluorescence spactra. On the basis of these parameters the mode-locking properties and the laser action of these dyes are discussed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 143 (1983)
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Study on open-circuit output voltage of Blumlein exciting circuit for N
2
lasers
Gao Tungui
The formula for open-circuit output voltage of Blumlein circuit has been obtained by solving the differential equation of the circuit. The approximate formula for open-circuit output voltage of the Blumlein circuit presented by W. A. Fitzsimmons and the authors of "Laser designing basis" is modified. The circ
The formula for open-circuit output voltage of Blumlein circuit has been obtained by solving the differential equation of the circuit. The approximate formula for open-circuit output voltage of the Blumlein circuit presented by W. A. Fitzsimmons and the authors of "Laser designing basis" is modified. The circuit parameters affecting the increase of peak pulse power of the device have been found. The conclusion of the paper "The N2 lasers"is rectified. The expression for open-circuit output voltage of a capacitor transfer circuit is given..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 147 (1983)
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A simple compact XeCl excimer laser with corona preionization
Song Qingmei
Experimental study of a XeCl laser with corona preionization is reported. The maximum output energy per pulse is over 250 mj. The effects of various discharge parameters on the output energy of XeCl excimer lasers are studied.
Experimental study of a XeCl laser with corona preionization is reported. The maximum output energy per pulse is over 250 mj. The effects of various discharge parameters on the output energy of XeCl excimer lasers are studied..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 156 (1983)
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Wavelength-selection of off-axial grating cavity for line-tuned lasers
Wang Yumin, Gui Zenxin, and Zhang Shunyi
Considering the effect of the position of the laser axial-modes on the gain shape and the pull-in frequency, we have calculated the wavelength-tuned characteristics of the off-axial grating cavity for vibration-rotation transition in CO laser when rotating the grating. It has been found that more transition lines can b
Considering the effect of the position of the laser axial-modes on the gain shape and the pull-in frequency, we have calculated the wavelength-tuned characteristics of the off-axial grating cavity for vibration-rotation transition in CO laser when rotating the grating. It has been found that more transition lines can be selected by the off-axial grating cavity, and the optimum output can be obtained with the off-axial cavity. The effect has been demonstrated in the experiment..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 159 (1983)
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Spectral characteristics of emission from stripe-geometry GaAs-GaAlAs double heterostructure lasers
Zhan Suzen
Four types of emission spectra from stripe-geometry GaAs-GaAlAs double hetero-tructure lasers are described and their origin studied. It has been found that the multimode configuration is caused by the nonuniformity in the active region and its adjacent area. Mode shift and competition have been measured at different c
Four types of emission spectra from stripe-geometry GaAs-GaAlAs double hetero-tructure lasers are described and their origin studied. It has been found that the multimode configuration is caused by the nonuniformity in the active region and its adjacent area. Mode shift and competition have been measured at different current levels. We have noticed that wavelengths shift toward the shorter ones with the increase of the current. The experimental results for devices with higher thermal resistance are contrary to the above conclusions..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 164 (1983)
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Study of all metal structure argon lasers
Tian Dazhun, Wang Dianru, Cao Eryan, and Zhang Fu
Preliminary results of an all metal structure argon laser are briefly deseribed in this paper. In this laser the discharge tube with an inside diameter of 8mm and discharge length of 300mm is made of water-cooled segmented aluminium disks. Water-cooled cold-arc-cathode in cup-shape and tube-shaped anode are used.
Preliminary results of an all metal structure argon laser are briefly deseribed in this paper. In this laser the discharge tube with an inside diameter of 8mm and discharge length of 300mm is made of water-cooled segmented aluminium disks. Water-cooled cold-arc-cathode in cup-shape and tube-shaped anode are used..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 168 (1983)
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Investigation on characteristics of repetitive short pulse xenon lamps
Tang Xingli, Lin Wenzheng, Li Fengying, Chen Lifei, and Qian Yulan
Investigation on short pulse xenon lamps for pumping dye lasers has been made. The pulse duration and rise-time is less than 2μs and 0.6μs respectively, with a lifetime of more than 107 shots in normal discharge loading. The effects of the physical and technical parameters of the lamps on the maximum energy loading and
Investigation on short pulse xenon lamps for pumping dye lasers has been made. The pulse duration and rise-time is less than 2μs and 0.6μs respectively, with a lifetime of more than 107 shots in normal discharge loading. The effects of the physical and technical parameters of the lamps on the maximum energy loading and radiative characteristics are described..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 171 (1983)
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Cyclical nulll-drift and multimode coupling for a four frequency ring laser gyro
Zhu Qing
This paper discusses that in the ring laser gyro (RLG) the off-axal mode is difficult to detect and the effects of the critical mode near the threshold on the precision of RLG.
This paper discusses that in the ring laser gyro (RLG) the off-axal mode is difficult to detect and the effects of the critical mode near the threshold on the precision of RLG..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 175 (1983)
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Precise measurement of wavefront curvature of large diameter laser beams using lens array
Liang Xiangchun, and Deny Ximing
A description is given of the precise measurement of the wavef ront curvature of large diameter laser beams using the lens array. The precision of the measured wavefront curvature is up to the order of the focal depth. The results obtained are compared with those from the mesh projection image and the shearing interfer
A description is given of the precise measurement of the wavef ront curvature of large diameter laser beams using the lens array. The precision of the measured wavefront curvature is up to the order of the focal depth. The results obtained are compared with those from the mesh projection image and the shearing interference. It indicates that the accuracy for judgement reading has been raised notably..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 179 (1983)
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Calculation of corrected temperature rise for laser calorimeters
Wang Ruihua
A method for calculating the corrected temperature rise is described. Data points are selected from equal time intervals on the plot of time-temperature for the laser calorimeter.
A method for calculating the corrected temperature rise is described. Data points are selected from equal time intervals on the plot of time-temperature for the laser calorimeter..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 183 (1983)
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[in Chinese]
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The structure of PT-1 calorimeter for measuring weak laser energy is described and operation parameters are presented. The measurement error has been analyzed and an accuracy of better than ±4.5% obtained.
The structure of PT-1 calorimeter for measuring weak laser energy is described and operation parameters are presented. The measurement error has been analyzed and an accuracy of better than ±4.5% obtained..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 186 (1983)
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[in Chinese]
[in Chinese]
The article introduces the formula and the method which work out the practical number table as the revision of circumstance for the laser interferometric length measurement system, it is useful to improve the efficiency of the instrument.
The article introduces the formula and the method which work out the practical number table as the revision of circumstance for the laser interferometric length measurement system, it is useful to improve the efficiency of the instrument..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 188 (1983)
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[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. 10, Issue 3, 191 (1983)
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[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. 10, Issue 3, 191 (1983)
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[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
.
showLess
Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 3, 191 (1983)
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Laser Devices and Laser Physics