Journals >Chinese Journal of Lasers
Contents
1979
Volume: 6 Issue 10
16 Article(s)
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Research Article
Extension and discussion of vibrational relaxation equations
Yan Haixing
The extension of vibrational relaxation equations to the case of degenerate vibrational modes is given and the meaning of viberational transition probability and the applicable conditions for the equations are discussed.The extension of vibrational relaxation equations to the case of degenerate vibrational modes is given and the meaning of viberational transition probability and the applicable conditions for the equations are discussed..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 1 (1979)
Branch selection CO molecular laser at room temperature
Lei Sizhan, Mao Wenying, Hu Wenfu, Huang Meiying, Zhang Shunyi, Tong Xinfa, and Gui Zenxin
Single-branch oscillation of CO molecular laser at room temperature by a grating is reported. The maximum output of 5 W was obtained.Single-branch oscillation of CO molecular laser at room temperature by a grating is reported. The maximum output of 5 W was obtained..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 6 (1979)
Development of a low noise 3.39 μm He-Ne laser with quartz discharge tubes of separate sections
Du Jixiang, Hu Taikang, and Yin Fangxiong
A low noise 3.39μm He-Ne laser with quartz discharge tubes of separate sections is developed. Compared with the device of ordinary quartz discharge tubes, the noise levels of laser output modulated by environmental noise and discharge current are suppressed by 20 db. The output characteristics of the laser have been imA low noise 3.39μm He-Ne laser with quartz discharge tubes of separate sections is developed. Compared with the device of ordinary quartz discharge tubes, the noise levels of laser output modulated by environmental noise and discharge current are suppressed by 20 db. The output characteristics of the laser have been improved obviously..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 16 (1979)
A sealed copper vapor laser with high repetition rate
Qiu Mingxin, Liang Degi, Shao Ziwen, Ding Shengmao, Zhang Jinhong, Zhang Huifen, Wang Xinnan, Zhang Kenian, and Liu Bangzheng
Experimental results of a copper vapor laser are reported, in which copper halide is used as lasing material. Maximum output of 72 mW was obtained when the laser operated continually for over 3 hours each time with a total operating time of 30 hours by using a sealed tube of 28 cm active length at the discharging pulseExperimental results of a copper vapor laser are reported, in which copper halide is used as lasing material. Maximum output of 72 mW was obtained when the laser operated continually for over 3 hours each time with a total operating time of 30 hours by using a sealed tube of 28 cm active length at the discharging pulse frequency of 14 KC. In addition, laser output is obtained by discharge of double pulse with two ball gaps. Finally, applicability of copper vapor laser is discussed..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 21 (1979)
A hollow cathode CW IR copper ion laser
Wu Changzheng, Yang Yin, Qian Hongsheng, and Zheng Siding
A Cu II laser operating at 7808 A has been developed to study the discharging characteristics of hollow cathode and the discharge of copper hollow cathode.A Cu II laser operating at 7808 A has been developed to study the discharging characteristics of hollow cathode and the discharge of copper hollow cathode..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 24 (1979)
A reconstruction method of hologram
Wang Zhijiang, Wo Minzhen, Ma Yonghua, and Wang Nenhe
A reconstruction method of holographic images is described in which a field lens is used to image the hologram onto the pupil of the eye, to enhance the intensity of the image without reducing its resolution, two holograms recorded at different directions are viewed by two eyes respectively to increase its parallax. EeA reconstruction method of holographic images is described in which a field lens is used to image the hologram onto the pupil of the eye, to enhance the intensity of the image without reducing its resolution, two holograms recorded at different directions are viewed by two eyes respectively to increase its parallax. Eecording hologram by using normal 35 mm film has an advantage of reducing anti-vibration requirement, however,the information is sufficient for viewing..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 26 (1979)
A wavefront reconstructing device-kinoform
Chen Yansong, Wang Yutang, Li Xiuying, and Wang Renxian
Kinoform has its own advantages in comparison with computer generated holograms. The principles, characterstics, applications of kinoform and the experimental results are discussed in this article.Kinoform has its own advantages in comparison with computer generated holograms. The principles, characterstics, applications of kinoform and the experimental results are discussed in this article..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 28 (1979)
Simultaneously recording of two groups of independent stress fringes by the method of holographic photoelasticity
Zhao Yeying, and Mei Jiafu
An improved optical system is presented winch can record two groups of independent fringes simultaneously. The stress patterns of the bed of Diesel engines’ main bearing are shown. This system not only simplifies the measurement of static stress, but can also be used for studying dynamic stress.An improved optical system is presented winch can record two groups of independent fringes simultaneously. The stress patterns of the bed of Diesel engines’ main bearing are shown. This system not only simplifies the measurement of static stress, but can also be used for studying dynamic stress..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 34 (1979)
A laser photoacoustic device and its applications in the analysis of some gases
Chen Chuanwen, Ming Changjiang, Liu Yaotian, Wang Lianjie, Li Zhenxiang, and Xu Jun
A CO2 laser photoacoustio spectrometer has been designed and established. It has been used to determine ethylene, propylene, ethylene trichloride, 1, 3-butadiene and unsymdimethyl hydrazine, the concentration range is 1-200 ppm. This method is quite simple, sensitive and fast.A CO2 laser photoacoustio spectrometer has been designed and established. It has been used to determine ethylene, propylene, ethylene trichloride, 1, 3-butadiene and unsymdimethyl hydrazine, the concentration range is 1-200 ppm. This method is quite simple, sensitive and fast..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 38 (1979)
Hexagonal single block LiNbO3 electro-optic Q-switch
Cheng Shaohe, and Yang Gonchen
Hexagonal single block LiNbO3 electro-optic Q-switches of various sizes were designed. The performances of such Q-switches have been improved greatly in comparison with those of double 45° single block LiNbO3 electro-optic Q-switches. Its extinction ratio is square times of that for common electro-optic Q-switchesHexagonal single block LiNbO3 electro-optic Q-switches of various sizes were designed. The performances of such Q-switches have been improved greatly in comparison with those of double 45° single block LiNbO3 electro-optic Q-switches. Its extinction ratio is square times of that for common electro-optic Q-switches, the efficiency is one time higher and the insertion losses are decreased..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 42 (1979)
Pyro-electric detectors for laser light
Feng Xiqi, Zhang Tienli, and Shao Lixwn
LiTaO3 detectors for weak laser signals and pyro-eleotrio detectors for coherent radiation were developed. The area of device and the effect of heat transfer of substrate on the frequency spectrum of device noise are discussed. Some practical applications of pyro-electric detectors in laser technology are given.LiTaO3 detectors for weak laser signals and pyro-eleotrio detectors for coherent radiation were developed. The area of device and the effect of heat transfer of substrate on the frequency spectrum of device noise are discussed. Some practical applications of pyro-electric detectors in laser technology are given..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 46 (1979)
Growth of cesium dihydrogen arsenate single crystals
Luo Chuhua, and Gu Kaihui
Growth of nonlinear optical material-cesium dihydrogen arsenate singlecrystals from aqueous solution by modified falling temperature method is reported. It involves synthesis of cesium dihydrogen arsenate, preparation of seed crystals, conditions and parameters for crystal growth, growth of large cesium dihydrogen arseGrowth of nonlinear optical material-cesium dihydrogen arsenate singlecrystals from aqueous solution by modified falling temperature method is reported. It involves synthesis of cesium dihydrogen arsenate, preparation of seed crystals, conditions and parameters for crystal growth, growth of large cesium dihydrogen arsenate single crystals and the effect of pH value for CsH2AsO4 solution on taper angle (φ) of crystals..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 52 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 57 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 58 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 10, 59 (1979)
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