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Journals >
Chinese Journal of Lasers
Contents
1983
Volume: 10 Issue 6
17 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 6, 1 (1983)
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Laser Devices and Laser Physics
Verification of metric theory of gravitation using beam width correction for Sagnac effect
Tan Weihan, Song Xiaojue, and Gu Zhichong
The effect of finite beam width on the Sagnac frequency shift has been calculated by Zhbairy and Scully. However, their analysis is somewhat incorrect. In the present paper,, we point out the questions included in their article and give a new analysis on this subject and the corrected equations for Sagnac effect for sq
The effect of finite beam width on the Sagnac frequency shift has been calculated by Zhbairy and Scully. However, their analysis is somewhat incorrect. In the present paper,, we point out the questions included in their article and give a new analysis on this subject and the corrected equations for Sagnac effect for square ring lasers..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 327 (1983)
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Causes for degradation of isolated stripe (GaAl) As/GaAs DH lasers by proton bombardment
Zhuang Wanru, Yang Peisheng, Gao Jilin, and Ma Yindi
We have investigated experimentally the causes for degradation of the isolated stripe CW(GaAl)As/GaAs DH lasers by proton bombardment. The results of ageing tests show that the fast degraded lasers are caused by defects (such as dark spot, dark line and dark region) in the active region extendeing rapidly during the te
We have investigated experimentally the causes for degradation of the isolated stripe CW(GaAl)As/GaAs DH lasers by proton bombardment. The results of ageing tests show that the fast degraded lasers are caused by defects (such as dark spot, dark line and dark region) in the active region extendeing rapidly during the test process. One of the factors limiting the lifetime to 103 hours is the oxidization of the mirror facet of laser cavity; and the moving of mierodefects by proton bombardment into the active region becomes one of the reasons limiting the lifetime to 104 hours..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 331 (1983)
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Frequency correction for optical gyros
Wang Runwen
In this paper we analyze the frequency correction caused by a finite beam width in an optical gyro. It has been proved that there exists the same correction factor for any polygonal optical gyro. The frequency correction factor for an optical gyro with its light transmitting along a circular waveguide is calculated and
In this paper we analyze the frequency correction caused by a finite beam width in an optical gyro. It has been proved that there exists the same correction factor for any polygonal optical gyro. The frequency correction factor for an optical gyro with its light transmitting along a circular waveguide is calculated and compared with that obtained by Zubairy..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 334 (1983)
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Second harmonic generation of TEA CO
2
10.6μm laser light in AgGaS
2
crystals
Zhang Bangxing, and Wang Dinghua
Characteristics of AgGaS2 crystal for frequency doubling of 10.6μm laser light has been investigated. When the crystal is 4.3mm in length, the maximum conversion efficiency is 0.122%. The experimental phase matching angle is 71.5° and the adjustment range 8°±1°. These data are in good agreement with
Characteristics of AgGaS2 crystal for frequency doubling of 10.6μm laser light has been investigated. When the crystal is 4.3mm in length, the maximum conversion efficiency is 0.122%. The experimental phase matching angle is 71.5° and the adjustment range 8°±1°. These data are in good agreement with the theoritieal values..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 339 (1983)
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Investigation on correlation of CW CO laser lines
Gui Zhenxing, and Zhang Shunyi
The experimental results are reported on the correlation of CW CO laser lines. It has been observed that P11-10(21) and P12-11(16) transitions overlap with R17-16(25) and R17-16 (23) respectively at lower pressures, and resonant absorption pumping occurs. Due to the overlaping of P-R branch oscillation, P branch in a f
The experimental results are reported on the correlation of CW CO laser lines. It has been observed that P11-10(21) and P12-11(16) transitions overlap with R17-16(25) and R17-16 (23) respectively at lower pressures, and resonant absorption pumping occurs. Due to the overlaping of P-R branch oscillation, P branch in a frequency selected CO laser is often suppressed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 343 (1983)
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Laser Raman spectra of terpene compounds
Cai Maolue, Luo Taizhao, and Liang Lizhen
Laser Raman spectra of several terpene compounds such α-pinene, β-pinene and camphene are presented. Frequency shift of the Raman spectral lines have been measured, and the relationship between frequency shift and the molecular structure of these compounds discussed. The results are in agreement with chemical analysis.
Laser Raman spectra of several terpene compounds such α-pinene, β-pinene and camphene are presented. Frequency shift of the Raman spectral lines have been measured, and the relationship between frequency shift and the molecular structure of these compounds discussed. The results are in agreement with chemical analysis..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 347 (1983)
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Synthesis of Rhodamine 640 with rigid structure and its spectral and lasing behaviour
Wu Zhengliang, Shu Juping, and Teng Yueli
Rhodamine 640 with rigid structure has been synthesized and its spectral and lasing behaviour measured. The absorption maximum is at 568nm and the fluorescence maximum at 620 nm.It can be pumped by a variety of light sources. It is found that Rho 640 lasing at 606 nm has low threshold and high efficiency.
Rhodamine 640 with rigid structure has been synthesized and its spectral and lasing behaviour measured. The absorption maximum is at 568nm and the fluorescence maximum at 620 nm.It can be pumped by a variety of light sources. It is found that Rho 640 lasing at 606 nm has low threshold and high efficiency..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 351 (1983)
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Discharge characteristics of an excimer laser with Blumlein type UV preionization energy coupling relationship
Xia Kangmin, Liu Miaohong., Li Liquan, and Chen Jianwen
This paper presents the results on energy coupling process of an excimer laser of Blumlein type UV preionization, using a group of voltage divider with a rise time of 0.8 ns and volttgeresistane of 60 kv and magneto-optic method. The problems on the optimum coupling form are discussed.
This paper presents the results on energy coupling process of an excimer laser of Blumlein type UV preionization, using a group of voltage divider with a rise time of 0.8 ns and volttgeresistane of 60 kv and magneto-optic method. The problems on the optimum coupling form are discussed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 358 (1983)
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Parameters and aberrations of holographic screen projection system for static three dimensional images
Xu Kunxian
The parameters and aberrations of holographic projection system for static three-dimensional images are analysed to achieve the systematization of computation principle on holographic projection system and optimum structure of projection system according to different operation.
The parameters and aberrations of holographic projection system for static three-dimensional images are analysed to achieve the systematization of computation principle on holographic projection system and optimum structure of projection system according to different operation..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 362 (1983)
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Influence of water on nonradiative relaxation of
4
F
3/2
state in Nd3+-phosphate glasses
Chen Shuchun, Song Xiuyu, and Dai Fengmei
Experimental research indicates that the water introduced during the preparation of phosphate glasses is directly responsible for the enhancement of nonradiative transition probability. Temperature dependence of the nonradiative relaxation rates in the range of 300-600K has been measured and the characteristics of the
Experimental research indicates that the water introduced during the preparation of phosphate glasses is directly responsible for the enhancement of nonradiative transition probability. Temperature dependence of the nonradiative relaxation rates in the range of 300-600K has been measured and the characteristics of the nonradiative relaxation have been analyzed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 366 (1983)
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Simplified optical-path design and the characters of a multipass reflective cell
Li Li
The simplified optical-path design of a multipass reflective cell made of two spherical mirrors is described. The major characters of the miltipass reflective beam are discussed and the errors estimated. The calculated results are in fair agreement with the experimental ones.
The simplified optical-path design of a multipass reflective cell made of two spherical mirrors is described. The major characters of the miltipass reflective beam are discussed and the errors estimated. The calculated results are in fair agreement with the experimental ones..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 370 (1983)
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A laser pulse slicer with cryotron
Zhu Xinming, Xue Bin, and Fan Dianyuan
A laser pulse slicer with a cryotron high voltage pulse generator is reported. An avalanche transistor trigger circuit with suspended photoelectric input and pulse simmering circuit are used. Pulses with a rise-time of 1.8ns and variable widths have been obtained by means of slicing Q-switched laser pulses.
A laser pulse slicer with a cryotron high voltage pulse generator is reported. An avalanche transistor trigger circuit with suspended photoelectric input and pulse simmering circuit are used. Pulses with a rise-time of 1.8ns and variable widths have been obtained by means of slicing Q-switched laser pulses..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 374 (1983)
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An improved type of W. Rogowski electrodes
Zhang Fuquan
A new formula for obtaining the electrodes with uniform field profile is presented. It is useful in designing a desired profile of W. Rogowski electrodes.
A new formula for obtaining the electrodes with uniform field profile is presented. It is useful in designing a desired profile of W. Rogowski electrodes..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 377 (1983)
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[in Chinese]
[in Chinese], and [in Chinese]
When common films sensitized by pentamethlidyne dye are activated by ps. ns and μS Nd laser pulses, their sensitivity have been significantly improved. The dye is proved to be inexpensive and with higher chemical stability.
When common films sensitized by pentamethlidyne dye are activated by ps. ns and μS Nd laser pulses, their sensitivity have been significantly improved. The dye is proved to be inexpensive and with higher chemical stability..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 381 (1983)
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[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Range finding from ground-to-Lageos satellite was conducted using a frequency doubled Nd-YAG laser. Values of range are from 6000-6900 km, and the measurement accuracy is about ±20cm.
Range finding from ground-to-Lageos satellite was conducted using a frequency doubled Nd-YAG laser. Values of range are from 6000-6900 km, and the measurement accuracy is about ±20cm..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 382 (1983)
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[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
We have treated 14 cases of late lung cancer, which are not suitable to the treatment of surgical operation and radiotherapy, with N2 laser as well as chemotherapy, traditional Chinese herbs and immuization from April 1980 to May 1982, observation for over 6 months show that there are 9 survivors, while there is only o
We have treated 14 cases of late lung cancer, which are not suitable to the treatment of surgical operation and radiotherapy, with N2 laser as well as chemotherapy, traditional Chinese herbs and immuization from April 1980 to May 1982, observation for over 6 months show that there are 9 survivors, while there is only one survivor of the 14 cases in the control group. Our results indicate that N2 laser may be useful to cure the late lung cancer..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 10, Issue 6, 384 (1983)
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