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ISSN1001-3806 CN51-1125/TN Map

1988 Vol. 12, No. 6

Display Method:
Kinetic processes of forming laser oscillation on KrⅡ469.5nm in He-Kr hollow cathode discharge (HCD)
Zhang Yaoning, Guo Ting, Zhang Kai, Wang Zifei, Qiu Junlin
1988, 12(6): 1-7.
Abstract:
The varying concentration of Hem(2s3S1)metastable in He-Kr HCD process was measured by means of self-absorption method with different conditions of discharge.Then the reaction rate.coefficient of the Hem(2s3S1)metastable decay processes was calculated.with these dates we are farely able to discuss the excitation mechanism of the laser oscillation on KrⅡ 469.5nm.
1988, 12(6): 7-7.
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1988, 12(6): 7-7.
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The calculation and discussion of thermodynamic parameters for liquid fuel CO2-GDL
Zhuang Tao
1988, 12(6): 8-17.
Abstract:
The thermodynamic parameters of several typical fuel systems have been calculated by varying the fuel proportion.The eggects of fuel proportion on the composition and temperature of combustion products and their dependence are discussed.The concept of the optimal gasdynamic-thermodynamic parameters is also presented.It will provide scientific basis for rationally coordinating the contradiction between the thermodynamic optimazation and the characteristic optimazation of laser and their proportions for combustion-driven GDL's.
1988, 12(6): 17-17.
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Influence of Gaussian transverse distribution on laser performance
Zhang Jiyue, Shi Wei
1988, 12(6): 18-25.
Abstract:
In this paper,the influence of Gaussian transverse distribution in the cavity on laser performance has been investigated with semiclassical theory.The result shows that the threshold and mode-pulling are related to the cavity length.
Measurement of three-dimensional displacement by regulated path length holograprphy and image processing
Cai Yunliang
1988, 12(6): 26-33.
Abstract:
The basic rule of using regulated path length holography to measure three-dimensional displacement is discussed in this paper. The modified formula of the position of measured points on the images of the curve surface object is derived by using geometric optics.Holographic images have been processed with the help of microdensitometer.In the end,measured results have been given.
1988, 12(6): 33-33.
Abstract:
Laser sensitization of PbS thin film
Sun Weiguo, Hu Rongwu
1988, 12(6): 34-36.
Abstract:
In order to solve the problems which sensitization conditions are diffcult to be controled and repetitiveness is lower, we use the laser instead of furnce in atmosphere to irradiate the element which need sensitizing.We get a good sensitization result.This method can judge the situation of sensitization according to the colors on the surface. During sesitization process,we can change and control the conditions which we want.By using this method,we compare with old method: the speed of sensitization is faster.The parameters of sensitized element are better.The yield is higher.We think it gives a better way to manufacture the PbS infrared detectors.
Analysis on Raman and infrared spectra of sulfadiazine and its rare earth compound
Zeng Weiyang, Deng Ruwen, Mao Shuqi, Zhang Bing, Wu Jigui
1988, 12(6): 37-43.
Abstract:
Raman and infrared spectra of H(SD)and La(SD),(SD-ion of sulfadiazine)have been recorded at room temperature for the first time.Assignment for some bands of the spectra has been made by qusalitative analysis.It is shown that the ion La3+ is connected with an oxygen atom in sulfadiazine group in a form of coordinate bond while a covalence bond is formed between the ion La3+ and a nitrogen atom located on pyrinidine cycle.
1988, 12(6): 43-43.
Abstract:
A new linearity test method for detector of CW or pulse laser
Qi Xue
1988, 12(6): 44-48.
Abstract:
To counter the poor stability of general laser source as well as pulse source.It is put forward a improved split-beam-comporsion linearity testing method which wakes it unnessary to compare with metrological standard instrument and solves the problem of precise linearity testing when using detector of opto-radiation.We introduce the testing instrument here patented by state,it has showned an experimental results that nonlinearity range of detector is not mote than 0.05%.
The injurious effects of laser on eyes
Xu Guidao, Xu Jiemin
1988, 12(6): 49-53.
Abstract:
The injurious effects of different wavelength laser with various operating mode and exposure doses on eyes were reported.Comparision of laser damage effects on eyes was conducted between rabbits with different extent of pigment.The ratio of laser damage threshold for eyes of rabbit,monkey to the yellow race was also discussed.
The design Principle of laser weld cans machine
Gao Chenguang, Shao Anding, Zhang Shaoming
1988, 12(6): 54-56.
Abstract:
This paper presents a principle of designing laser can welding machine and connective method between the laser-head and the machine tool.
1988, 12(6): 59-59.
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1988, 12(6): 59-59.
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1988, 12(6): 59-59.
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