Optical breakdown and absorption of radiation of powerful pulse-periodic CO2 laser in a supersonic air stream

Aleksey N. Malov; Anatoliy M. Orishich; Tatjana A. Bobarykina; Vladimir F. Chirkashenko

doi:10.1117/12.882155

16 November 2010 Optical breakdown and absorption of radiation of powerful pulse-periodic CO₂ laser in a supersonic air stream

Aleksey N. Malov, Anatoliy M. Orishich, Tatjana A. Bobarykina, Vladimir F. Chirkashenko

Author Affiliations +

Proceedings Volume 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 775124 (2010) https://doi.org/10.1117/12.882155
Event: 18th International Symposium on Gas Flow and Chemical Lasers and High Power Lasers, 2010, Sofia, Bulgaria

Abstract

The paper presents the results of the study of the CO₂ laser radiation absorption in the optical-breakdown plasma in a supersonic air stream. The experimental facility and procedures of the absorption coefficient measurement in plasma are described. Experimental dependencies of the radiation absorption have been obtained within the wide range of the gasdynamic parameters of the supersonic air stream (velocity, static pressure, density, Mach number). The results are helpful to choose the working modes of the wind tunnel to choose the influence of the energy supply into the supersonic stream on the sonic boom formation and its level.

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Aleksey N. Malov, Anatoliy M. Orishich, Tatjana A. Bobarykina, and Vladimir F. Chirkashenko "Optical breakdown and absorption of radiation of powerful pulse-periodic CO₂ laser in a supersonic air stream", Proc. SPIE 7751, XVIII International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 775124 (16 November 2010); https://doi.org/10.1117/12.882155

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