Journals >Chinese Journal of Lasers
Contents
1979
Volume: 6 Issue 11
22 Article(s)
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Research Article
The gradient vector potential of the electromagnetic field in vacuum
Teng Ximing, and Fang Honglie
There is a gradient vector potential in electromagnetic field. A tensor of the internal tension of electromagnetic field has been derived from it. The existence of this tension is the origin of the phenomena of diffraction, interference etc.There is a gradient vector potential in electromagnetic field. A tensor of the internal tension of electromagnetic field has been derived from it. The existence of this tension is the origin of the phenomena of diffraction, interference etc..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 1 (1979)
Separation of boron isotopes by multiple-photon absorption of infrared radiation
[in Chinese]
Boron isotope enrichment is obtained by selectively exciting the ν vibrational mode with multiple-photon absorption using a TEA CO2 laser, as a result, 11BOl3 dissociates and its fragments interact with dry atmosphere. Various experimental conditions affecting the enrichment coefficient were observed. Solid and gaseousBoron isotope enrichment is obtained by selectively exciting the ν vibrational mode with multiple-photon absorption using a TEA CO2 laser, as a result, 11BOl3 dissociates and its fragments interact with dry atmosphere. Various experimental conditions affecting the enrichment coefficient were observed. Solid and gaseous products of the irradiation were measured by infrared absorption spectroscopy and mass speotroscopy. The maximum enrichment coefficient obtained was 2.3. In an experiment of greater scale, some macroscopic measurable quantities were obtained, and the productivity was about milligrams an hour. On analysing the gaseous products evaporating from a frozen sample of the residual gas, the broadening and anomalous intensification of the 1,000 cm-1 IR band were found..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 11 (1979)
Investigation on Blumlein circuit of a molecular nitrogen laser
Guo Guangcan, Wen Gongling, and Zang Yuchun
General considerations for increasing the circuit efficiency and laser output power were analyzed. The segmented structure of Blumlein circuit and the results of corona preionization were studied; the effect of electrodes with unequal spacing on laser output in two directions were measured. The existence of "traveGeneral considerations for increasing the circuit efficiency and laser output power were analyzed. The segmented structure of Blumlein circuit and the results of corona preionization were studied; the effect of electrodes with unequal spacing on laser output in two directions were measured. The existence of "travelling-wave excitation" in the system are denied, and a new explanation for the experimental results are given..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 17 (1979)
Pulsed argon ion laser with adjustable repetitive frequency
Jia Zuxin, Zhang Kunghua, and Zhang Boxin
A pulsed discharging argon ion laser with repetitive frequency of 50-200 Hz is described. The inner diameter of the discharge tube is 6 mm, the tube length is 860 mm, the overall length of the resonator is 1200 mm, and the pulse width is 9μs. An output of 30-50 W can be obtained at the optimum operation current.A pulsed discharging argon ion laser with repetitive frequency of 50-200 Hz is described. The inner diameter of the discharge tube is 6 mm, the tube length is 860 mm, the overall length of the resonator is 1200 mm, and the pulse width is 9μs. An output of 30-50 W can be obtained at the optimum operation current..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 22 (1979)
Investigation on argon ion laser pumped CW dye laser
[in Chinese]
Parameters and sizes of components and parts in the experimental setup for a GW dye laser are presented, jetting and cycling system of dye solution are described. Main experimental results obtained until recently are presented, which include oscillation threshold, laser conversion efficiency, the maximum output power, Parameters and sizes of components and parts in the experimental setup for a GW dye laser are presented, jetting and cycling system of dye solution are described. Main experimental results obtained until recently are presented, which include oscillation threshold, laser conversion efficiency, the maximum output power, and the effect of additive COT on the conversion efficiency. Main problems of the device are discussed and suggestions for improvement are raised..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 28 (1979)
An experimental study of the linear flashtube pumped rhodamine 6G dye laser
Zhao Meicun, Zhao Longxing, Lu Guoxian, and He Huijuan
A linear flashtube pumped rhodamine 6G dye laser was built. The laser pulse energy is up to 27mj, and the halfwidth of laser pulse is 1μS. Laser efficiency is 0.1%. Spectral width of 40 A° is obtained by tuning a prizm. Pulse repetition rate of 1 and 2 pps was obtained and the performances of the device were studiA linear flashtube pumped rhodamine 6G dye laser was built. The laser pulse energy is up to 27mj, and the halfwidth of laser pulse is 1μS. Laser efficiency is 0.1%. Spectral width of 40 A° is obtained by tuning a prizm. Pulse repetition rate of 1 and 2 pps was obtained and the performances of the device were studied..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 31 (1979)
Experimental investigation on the Fresnel rhomb optical isolator
Lin Lihuang, Chen Shishen, Liang Xiangchun, Li Anming, Ouyang Bin, and Kang Ywying
A Fresnel rhomb combined with a 1.06 μm multilayer dielectric film polarizer forms an isolator with an effective diameter of 60 mm. An extinction coefficient of over 102 has been obtained. It is shown in the experiments that the design of high power laser is simplified and their operation is facilitated by using this iA Fresnel rhomb combined with a 1.06 μm multilayer dielectric film polarizer forms an isolator with an effective diameter of 60 mm. An extinction coefficient of over 102 has been obtained. It is shown in the experiments that the design of high power laser is simplified and their operation is facilitated by using this isolator..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 33 (1979)
Experiment on the amplification of ruby laser light
An Shuxue, and Ning Xifa
An experimental setup for a two staged giant pulse ruby laser is described together with its adjusting and matching techniques. A synchronously triggering circuit with high stability and strong anti-disturbance capability is introduced.An experimental setup for a two staged giant pulse ruby laser is described together with its adjusting and matching techniques. A synchronously triggering circuit with high stability and strong anti-disturbance capability is introduced..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 37 (1979)
Annealing of Sn implanted GaAs by pulsed ruby laser
Wu Henxian, Liu Liren, Zhao Xinan, and Xin Shanghen
Samples of GaAs implanted with tin were irradiated with a Q-switohed ruby laser (-1J/cm2, 30-40 ns). Investigation on proton channeling and electron diffraction showed that the amorphous layer of samples implanted with 60 keV or 300 keV Sn ions was recrystallized by laser irradiation, and the dopant atoms were in substSamples of GaAs implanted with tin were irradiated with a Q-switohed ruby laser (-1J/cm2, 30-40 ns). Investigation on proton channeling and electron diffraction showed that the amorphous layer of samples implanted with 60 keV or 300 keV Sn ions was recrystallized by laser irradiation, and the dopant atoms were in substitutional sites. The maximim concentration of GaAs carriers was up to 1×1019/cm3 after annealing, it is 20 times higher than that of the heat annealed samples..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 40 (1979)
Laser inspection of surface fineness and flaws on the axle tip of instruments
Zhang Chunpin, Zhang Guangyin, and Liu Yufang
A new method for inspection of fineness and flaws on the axle tip of miniature instruments with laser is described. It has been proved in practice that the new method has the advantages of simplicity, reliability and fast speed for inspection.A new method for inspection of fineness and flaws on the axle tip of miniature instruments with laser is described. It has been proved in practice that the new method has the advantages of simplicity, reliability and fast speed for inspection..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 44 (1979)
A circuit for laser frequency stabilization
Ding Jiping
The characteristics of the error signal in a laser frequency stabilizer are discussed. A new method for controlling the length of laser cavity is presented. The relative stability for the two-frequency laser stabilizer is up to 5×10-10.The characteristics of the error signal in a laser frequency stabilizer are discussed. A new method for controlling the length of laser cavity is presented. The relative stability for the two-frequency laser stabilizer is up to 5×10-10..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 47 (1979)
Impression on the visit to U. S. A.
Wang Zhijiang, and Zhang Zhiming
Laser Delegation of Instrument Society of China was invited to attend the 7th Conference on Laser Engineering and Application in United States. The authors personally learned the frontier trends and the developments in depth in the field of laser science. The successful work by the American scientists has left deep impLaser Delegation of Instrument Society of China was invited to attend the 7th Conference on Laser Engineering and Application in United States. The authors personally learned the frontier trends and the developments in depth in the field of laser science. The successful work by the American scientists has left deep impression on them..
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 51 (1979)
[in Chinese]
[in Chinese], [in Chinese], and [in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 56 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 58 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 60 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 61 (1979)
[in Chinese]
[in Chinese], and [in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 62 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 63 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 63 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 63 (1979)
[in Chinese]
[in Chinese]
Chinese Journal of Lasers
- Publication Date: Jan. 01, 1900
- Vol. 6, Issue 11, 64 (1979)
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