Liquid droplet supercritical explosion in the field of CO2 laser radiation and influence of plasma chemical reactions on initiation of optical breakdown in air

A. P. Budnik; A. G. Popov

doi:10.1117/12.48145

1 December 1991 Liquid droplet supercritical explosion in the field of CO2 laser radiation and influence of plasma chemical reactions on initiation of optical breakdown in air

A. P. Budnik, A. G. Popov

Author Affiliations +

Proceedings Volume 1440, Optical Radiation Interaction with Matter; (1991) https://doi.org/10.1117/12.48145
Event: Optical Radiation Interaction with Matter, 1990, Leningrad, Russian Federation

Abstract

Mathematical modeling of water droplet explosion in air in the field of CO2-laser radiation (LR) was carried out. Some processes leading to air optical breakdown (OB) initiation in shock wave (SW) were investigated. OB of shock-heated air has been shown to develop in two stages. At the first stage, initial electrons are caused by plasma chemical reactions in heated and compressed air. At the second stage, these electrons, under influence of laser radiation, give rise to an electron avalanche, which leads to air OB.

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A. P. Budnik and A. G. Popov "Liquid droplet supercritical explosion in the field of CO2 laser radiation and influence of plasma chemical reactions on initiation of optical breakdown in air", Proc. SPIE 1440, Optical Radiation Interaction with Matter, (1 December 1991); https://doi.org/10.1117/12.48145

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