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RSS1988 Vol. 12, No. 1
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1988, 12(1): 1-8.
[Abstract]
[PDF 368KB]
Abstract:
The properties of turbulent effects including intensity fluctuation,beam spread,spot quiver,and pathlength fluctuation of laser propagating through a folded Path are discussed.Theories show that there are amplifications or self-compensations of the turbulence effects with different reflector in comparison with the direct path.The generation mechanisms of these phenomena are also analysed.
The properties of turbulent effects including intensity fluctuation,beam spread,spot quiver,and pathlength fluctuation of laser propagating through a folded Path are discussed.Theories show that there are amplifications or self-compensations of the turbulence effects with different reflector in comparison with the direct path.The generation mechanisms of these phenomena are also analysed.
1988, 12(1): 9-14.
Abstract:
The laser osillation of Cu Ⅱ 740.4nm(6SD3-5P3P230)line is obtained with the full metal copper hollow cathode laser designed by the authors.To study optimum condition of laser operation,gain characteristic of the line is measured with radiation measurement under a variety of exciting condition.Measuring results are discussed.The authors come to the conclusion that gain of CuⅡ740.4nm is maximum when He:Ar equals 4:1 in the case of He-Ar-Cu discharge.The conclusion is in good agree with practical laser output characteristic.
The laser osillation of Cu Ⅱ 740.4nm(6SD3-5P3P230)line is obtained with the full metal copper hollow cathode laser designed by the authors.To study optimum condition of laser operation,gain characteristic of the line is measured with radiation measurement under a variety of exciting condition.Measuring results are discussed.The authors come to the conclusion that gain of CuⅡ740.4nm is maximum when He:Ar equals 4:1 in the case of He-Ar-Cu discharge.The conclusion is in good agree with practical laser output characteristic.
1988, 12(1): 15-19.
Abstract:
In this paper,it is detailed the experimental measurement of the signal changing of the fast election from metal target evaporated by Q laser depending on laser instensity(5×107～2×109W/cm2).The results of the experiment are analysed theorically,and the numeral calculation is based on the suitable model.Through the comparation and disscusion of the results of the experiment and the numeral calcutation,physical mechanism of the signal changing of the fast election depending on laser instensity is presented.
In this paper,it is detailed the experimental measurement of the signal changing of the fast election from metal target evaporated by Q laser depending on laser instensity(5×107～2×109W/cm2).The results of the experiment are analysed theorically,and the numeral calculation is based on the suitable model.Through the comparation and disscusion of the results of the experiment and the numeral calcutation,physical mechanism of the signal changing of the fast election depending on laser instensity is presented.
1988, 12(1): 20-24.
Abstract:
A usable circuit of solid state laser power supply of L-C constant current charger is described.The relationship between L-C parameter and charging voltage,repetition rate is discussed.The charging voltage error is about±0.2%.It enables the simplification of the circuit,and results in simple structure and easy operation.The pareamters of main components are given.
A usable circuit of solid state laser power supply of L-C constant current charger is described.The relationship between L-C parameter and charging voltage,repetition rate is discussed.The charging voltage error is about±0.2%.It enables the simplification of the circuit,and results in simple structure and easy operation.The pareamters of main components are given.
1988, 12(1): 24-28.
Abstract:
A signal source which generates a programmable double pulse train of single pulse train(pulse amplitude:100V～300V,pulse width:30ns～50μs,rise time or fall time:10ns,repetition frequency:100Hz～1MHz) is discussed.The electrical principles of this instrument are analysed,and the circuits and data of this instrument are given.
A signal source which generates a programmable double pulse train of single pulse train(pulse amplitude:100V～300V,pulse width:30ns～50μs,rise time or fall time:10ns,repetition frequency:100Hz～1MHz) is discussed.The electrical principles of this instrument are analysed,and the circuits and data of this instrument are given.
1988, 12(1): 29-33.
Abstract:
On the basic of discussing the dispersion model of an Optical thin film,an united simplified aispersion equation is chosen to fit the figures measured of the refractive index dispersion of eight common optical thin films collected in the range of vissible spectrum,and the coefficientsAandBin the equation are atteined for every film.So simplified dispersion equation can be used to calculate the dispersion.The coefficientsAandBof the common eight thin films as well as the dispersion curves calculated theoretically are given in this theses,and compared with the figures measured.The results are satisfactory.
On the basic of discussing the dispersion model of an Optical thin film,an united simplified aispersion equation is chosen to fit the figures measured of the refractive index dispersion of eight common optical thin films collected in the range of vissible spectrum,and the coefficientsAandBin the equation are atteined for every film.So simplified dispersion equation can be used to calculate the dispersion.The coefficientsAandBof the common eight thin films as well as the dispersion curves calculated theoretically are given in this theses,and compared with the figures measured.The results are satisfactory.
1988, 12(1): 33-36.
Abstract:
A thermionic diode has been developed for experimental research of Rydberg atoms,Rb nD and nS high Rydberg states were measured with Doppler-free two-photon spectroscopy.
A thermionic diode has been developed for experimental research of Rydberg atoms,Rb nD and nS high Rydberg states were measured with Doppler-free two-photon spectroscopy.
1988, 12(1): 36-40.
Abstract:
Power measurements of emitting heads and laser sim-ulator of GaAs semiconductor lasers were reported in This paper.The results showed thab the laser simulator used in air force training were safe to eye.
Power measurements of emitting heads and laser sim-ulator of GaAs semiconductor lasers were reported in This paper.The results showed thab the laser simulator used in air force training were safe to eye.
1988, 12(1): 40-43.
Abstract:
In this paper a method of saling photoelectric energymeter by using calorimeter in laser ready for energy measurement is presented.The methed is rather simple,using less instruments,and bring the rapid response and high sensitivity of photoelectrie element into play.It also can be exten ted to the measurement of laser micro energy of short pulse within certaion response linear range.
In this paper a method of saling photoelectric energymeter by using calorimeter in laser ready for energy measurement is presented.The methed is rather simple,using less instruments,and bring the rapid response and high sensitivity of photoelectrie element into play.It also can be exten ted to the measurement of laser micro energy of short pulse within certaion response linear range.
1988, 12(1): 43-47.
Abstract:
In this paper we present deselopment of the excimer laser,specifically high power rare gas-halide excimer lasers that is pumped by the electron beam and eletric discharge.
In this paper we present deselopment of the excimer laser,specifically high power rare gas-halide excimer lasers that is pumped by the electron beam and eletric discharge.
1988, 12(1): 48-53.
Abstract:
The principle of the laser doppler volocity measuring technique and its application in aeronautics is introduced.
The principle of the laser doppler volocity measuring technique and its application in aeronautics is introduced.
1988, 12(1): 54-59.
Abstract:
We have utilize CO2 laser and He-Ne laser focus-out irradiation and additional antibiotics to treat 102 patients for appendical abscess,post-appendectomy secondary intra-abdomen residual abscess or infectious incision.In past five years,the clinical practice showed that curable rate was 88.2% and had neither mortality nor complications.This paper declares the fundamental theory of the laser irradiation therapy for peri-appendical abscess,and explains the applicable principles and advantages about the combination of CO2 laser and He-Ne laser irradiation.The evaluation of its curative effects is given too.
We have utilize CO2 laser and He-Ne laser focus-out irradiation and additional antibiotics to treat 102 patients for appendical abscess,post-appendectomy secondary intra-abdomen residual abscess or infectious incision.In past five years,the clinical practice showed that curable rate was 88.2% and had neither mortality nor complications.This paper declares the fundamental theory of the laser irradiation therapy for peri-appendical abscess,and explains the applicable principles and advantages about the combination of CO2 laser and He-Ne laser irradiation.The evaluation of its curative effects is given too.
