Journals >Chinese Journal of Lasers
Contents
1984
Volume: 11 Issue 10
20 Article(s)
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Research Article
Laser Devices and Laser Physics
Progress of laser applications of China in recent 10 years
Lu Zhiguo
Progress of laser applications of China in the recent 10 years (1974-1984) in industry, holography and information processing, instrumentaition and other scientific research ficJds is surveyed in the present paper.Progress of laser applications of China in the recent 10 years (1974-1984) in industry, holography and information processing, instrumentaition and other scientific research ficJds is surveyed in the present paper..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 577 (1984)
Stability of laser traps
Cao Hongkui, and Wang Yuzhu
In this paper we present a method to judge the stability of laser traps for trapping neutral atoms of gas. Using the method we prove theoretically that the bi-Gaussian light beam trap can be stable in trapping neutral (two-level) atoms of gas along the beam axis. We also discuss the stability of a throe-dimensional spaIn this paper we present a method to judge the stability of laser traps for trapping neutral atoms of gas. Using the method we prove theoretically that the bi-Gaussian light beam trap can be stable in trapping neutral (two-level) atoms of gas along the beam axis. We also discuss the stability of a throe-dimensional spatial trap which is formed by three bi-Gaussian light beam traps with the same structure but perpendicular cross..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 584 (1984)
Study of the forward SRS phase conjugation
Feng Shiyu, Guo Sigan, Zheng Shunxuan, Liang Zhenbin, and Ma Yingying
The forward SRS phase conjugation of benzene has been studied. The experiment shows that the forward SES phase conjugation is similer to that of the backward SRS and the result is analysed.The forward SRS phase conjugation of benzene has been studied. The experiment shows that the forward SES phase conjugation is similer to that of the backward SRS and the result is analysed..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 590 (1984)
Effect of discharge circuit inductance on laser output energy and discharge properties in an avalanche discharge XeCl* excimer laser. Based on these results, we have obtained laser output pulse energy of 0.6 J(0.7~0.8 J/L. atm) by using film and paper capacitors as laser discharge power supply.
Zheng Chengen, Cao Hongmin, Liu Bo, Wei Yunrong, Ding Aizhen, and Lou Qihong
Effects of additional inductance in discharge circuit on discharge properties and laser output energy have been investigated in an avalanche discharge XeCl* excimer laser. Based on these results, we have obtained laser output pulse energy of 0.6 J (0.7-0.8 J/L. atm) by using film and paper capacitors as laser dischargeEffects of additional inductance in discharge circuit on discharge properties and laser output energy have been investigated in an avalanche discharge XeCl* excimer laser. Based on these results, we have obtained laser output pulse energy of 0.6 J (0.7-0.8 J/L. atm) by using film and paper capacitors as laser discharge power supply..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 593 (1984)
Function analysis and parameters determination of resonator type fiber-gyroscopes
Sun Li, and Deng Feifan
An analytical formula for calculating optimum length of the resonator type fiber-gyroscopes has been deduced. After considering the stimulated Brillouin scattering, the sensitivity limit of the fiber-gyroscopes, the determination of the coupling coefficient and the demanded splice loss are discussed.An analytical formula for calculating optimum length of the resonator type fiber-gyroscopes has been deduced. After considering the stimulated Brillouin scattering, the sensitivity limit of the fiber-gyroscopes, the determination of the coupling coefficient and the demanded splice loss are discussed..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 598 (1984)
Theoretical analyses and calculations of cylindrical step-index optical fiber with a spherical lens excited with GaAs lasers
Zhang Zhipeng, and Shi Shouyong
This paper analyses and calculates the exciting efficiency of cylindrical step-index optical fiber with a spherical lens excited by GaAs lasers, and provides the parameters from which the optimum coupling is obtained. An exciting efficiency of up to over 90% can be obtained from the fundamental modes.This paper analyses and calculates the exciting efficiency of cylindrical step-index optical fiber with a spherical lens excited by GaAs lasers, and provides the parameters from which the optimum coupling is obtained. An exciting efficiency of up to over 90% can be obtained from the fundamental modes..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 602 (1984)
Holographic recording characteristics of poly-N-vinylcarbazole photosensitive film
Tang Junhui, E Yun, Qiu Jiabai, Ding Ruisong, and Du Jinhuan
A new non-silver haloid photographic system based on polyvinylcarbazole has been developed. Some holographic recording characteristics, such as TA-H curve, resolution, diffraction efficiency and sensitivity, have beon investigated.A new non-silver haloid photographic system based on polyvinylcarbazole has been developed. Some holographic recording characteristics, such as TA-H curve, resolution, diffraction efficiency and sensitivity, have beon investigated..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 607 (1984)
Study of two-photon induced fluorescence of protein
Hui Lingkai, Li Qun, Zhang Zheng, Pan Ghengming, Jiang Shouping, Lian Shaohui, Chen Liqun, Kuan Kangoheng, Huang Tianqin, and Liu Songhao
Using a Q-switched Nd: YAG laser the two photon induced fluorescence on borine high sidero-hemoglobin, globulin, tryptophane and tyrosine and their nonlinear effectz have been studied. The two-photon absorption chromophoro in borine high sidero-hemoglobin, borine serumalbumin and globulin are mainly due to the presenceUsing a Q-switched Nd: YAG laser the two photon induced fluorescence on borine high sidero-hemoglobin, globulin, tryptophane and tyrosine and their nonlinear effectz have been studied. The two-photon absorption chromophoro in borine high sidero-hemoglobin, borine serumalbumin and globulin are mainly due to the presence of tryptophanc. The obvious difference between fluorescence intensities of tryptophane and tyrosine are caused by their different cross sections. It may be a new approach for selective excitation..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 611 (1984)
Power supply for acousto-optic modulation of frequency mixers
Pan Yinfei
The main components of an acousto-optic mode-locked device and the excitation source, i, e, power supply for acousto-optic modulation are described. The high-speed digital frequency mixer made of medium-scale integrated circuits and the design of a high power transistor amplifier are also presented.The main components of an acousto-optic mode-locked device and the excitation source, i, e, power supply for acousto-optic modulation are described. The high-speed digital frequency mixer made of medium-scale integrated circuits and the design of a high power transistor amplifier are also presented..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 617 (1984)
Investigation of operating conditions of glow discharge electron gun with aluminium cathode
YU Zengqi, Lin Fengqi, and Zhou Shiliang
A method to study the gas phase requisite for the new electron guns has been investigated. Its results are useful for the design of CW laser devices.A method to study the gas phase requisite for the new electron guns has been investigated. Its results are useful for the design of CW laser devices..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 621 (1984)
Simulation computation on dynamical processes of high pressure 16 μm CO2 lasers
Zhuang Dounan, and Zhao Donghuan
Using the special dynamical model for 16 μm CO2 lasers, we computed the laser intensity at 16 μm. The results show that high pressure CO2-N2-He mixture may provide tlaser output high-power at 16 μm in special conditions.Using the special dynamical model for 16 μm CO2 lasers, we computed the laser intensity at 16 μm. The results show that high pressure CO2-N2-He mixture may provide tlaser output high-power at 16 μm in special conditions..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 624 (1984)
[in Chinese]
[in Chinese], [in Chinese], and [in Chinese]
The performance of the ADP crystal for extracavity 90℃ phase-matched SHG of Ar+ lasers is reported. The phase-matching temperature was -11.61℃, and the efficiency 3.2%. The SHG power of 5.8 mw was obtained at the fundamental power of 1.8 w. The fluctuation of SH power was less than 5% during one hour operation.The performance of the ADP crystal for extracavity 90℃ phase-matched SHG of Ar+ lasers is reported. The phase-matching temperature was -11.61℃, and the efficiency 3.2%. The SHG power of 5.8 mw was obtained at the fundamental power of 1.8 w. The fluctuation of SH power was less than 5% during one hour operation..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 628 (1984)
[in Chinese]
[in Chinese]
The characters of two-photon absorption in gases, liquids and solids are discussed by means of semiclassical theory and comparative luminescence experiments. It is shown that the two-photon absorption for electric dipole-forbidden levels is dipole-dipole transition. Both one-photon absorption of the laser second harmonThe characters of two-photon absorption in gases, liquids and solids are discussed by means of semiclassical theory and comparative luminescence experiments. It is shown that the two-photon absorption for electric dipole-forbidden levels is dipole-dipole transition. Both one-photon absorption of the laser second harmonic and two-photon absorption of the laser fundamental harmonic are allowed in some materials..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 630 (1984)
[in Chinese]
[in Chinese]
The article introduces briefly the principle; structure of the automatic measurement and control system of the laser level plane and its engineering test in the construction of slipf orm and rooftruss lift.The article introduces briefly the principle; structure of the automatic measurement and control system of the laser level plane and its engineering test in the construction of slipf orm and rooftruss lift..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 632 (1984)
[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Using CO laser light incident on an InSb crystal at 12 K, we measured the output intensity from the crystal, and the nonlinear index n2 can be determined in accordance with the transmissivity curve.Using CO laser light incident on an InSb crystal at 12 K, we measured the output intensity from the crystal, and the nonlinear index n2 can be determined in accordance with the transmissivity curve..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 635 (1984)
[in Chinese]
[in Chinese], [in Chinese], and [in Chinese]
A simple single-frequency quasi-CW argon ion laser has been constructed. Its output power at 5145 A is over 10w. The multiline output power is up to 30w. This laser is used in ophthalmic holography.A simple single-frequency quasi-CW argon ion laser has been constructed. Its output power at 5145 A is over 10w. The multiline output power is up to 30w. This laser is used in ophthalmic holography..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 636 (1984)
[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
This article reports CO2 laser irradiation on Huiyin point in 30 chronic prostatitis cases with a curative rate of 33%.This article reports CO2 laser irradiation on Huiyin point in 30 chronic prostatitis cases with a curative rate of 33%..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 638 (1984)
[in Chinese]
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
This paper describes a calorimeter of the mechanical pressure contact (MPC) model for measuring CO2 pulsed laser energy.This paper describes a calorimeter of the mechanical pressure contact (MPC) model for measuring CO2 pulsed laser energy..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 638 (1984)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 11, Issue 10, 640 (1984)
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