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This article is cited in 2 scientific papers (total in 2 papers)
Effects of laser radiation on matter. Laser plasma
Dynamics of a plasma formed by a surface optical-discharge in a metal vapour interacting with a cw CO2 laser beam
A. E. Zaĭkin, A. V. Levin, A. L. Petrov Samara Branch of P. N. Lebedev Physical Institute, Russian Academy of Sciences
Abstract:
A surface optical-discharge plasma was formed in a metal vapour under normal conditions by steady-state irradiation with a cw CO2 laser delivering radiation of moderate (2 — 4.5 MW cm–2) intensity. This plasma strongly screened the irradiated surface. Under the selected experimental conditions the optical discharge was not a continuous (steady-state) process. The plasma cloud was displaced along the beam out of the waist to a region where the laser radiation intensity was almost an order of magnitude less than the threshold for excitation of the optical-discharge plasma in the vapour. A strong screening of the metal surface, which could even completely stop evaporation of the metal, was observed. Self-oscillations of the optical-discharge plasma were observed for the first time in a vapour interacting with cw CO2 radiation: this was attributed to screening of the target surface. Within one period of the self-oscillations there were additional hf plasma pulsations which led to stratification of the plasma cloud. The results obtained were interpreted.
Citation:
A. E. Zaĭkin, A. V. Levin, A. L. Petrov, “Dynamics of a plasma formed by a surface optical-discharge in a metal vapour interacting with a cw CO2 laser beam”, Kvantovaya Elektronika, 22:2 (1995), 145–149 [Quantum Electron., 25:2 (1995), 135–139]
Linking options:
https://www.mathnet.ru/eng/qe308 https://www.mathnet.ru/eng/qe/v22/i2/p145
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Abstract page: | 138 | Full-text PDF : | 125 |
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