Absorption of high-power microwave radiation in the plasma of the decaying optical breakdown of a gas
| Autor: | I. F. Shaikhislamov, A. V. Melekhov, S.A. Nikitin, V. G. Posukh, V. M. Antonov, V. N. Tischenko |
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| Rok vydání: | 1998 |
| Předmět: |
Argon
Acoustics and Ultrasonics Atmospheric pressure Chemistry chemistry.chemical_element Plasma Radiation Condensed Matter Physics Laser Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Physics::Plasma Physics law Ionization Atomic physics Absorption (electromagnetic radiation) Microwave |
| Zdroj: | Journal of Physics D: Applied Physics. 31:1998-2003 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/31/16/009 |
| Popis: | For the first time a microwave discharge located in the plasma of decaying optical breakdown of gas (air and argon at atmospheric pressure) has been generated. Four beams (each with a power of up to 100 kW) were injected sequentially into a volume of ionized rarefied gas which had been generated before hand by -laser radiation. The absorption was 50%, the maximum duration of the interaction of the microwave radiation with the plasma was 0.3-2 ms and was limited by the process of turbulent cooling. Depending on the parameters of the absorbing medium and microwave radiation a semi-self-maintained or self-maintained discharge with a diffusion or spark structure has been generated. A model for the calculation of basic characteristics of the decaying optical breakdown of a microwave discharge in it was suggested. |
| Databáze: | OpenAIRE |
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