Propagation focus repetitively pulsed laser radiation in gas-aerosol atmosphere

A. G. Ponomarenko; G. N. Grachev; A. A. Zemlyanov; A. A. Pavlov; V. N. Tischenko; A. M. Kabanov; V. A. Pogodaev; J. E. Geynts; A. L. Smirnov; A. A. Pavlov; A. V. Petrov; P. A. Pinaev; P. A. Statsenko

doi:10.1117/12.2075969

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25 November 2014 Propagation focus repetitively pulsed laser radiation in gas-aerosol atmosphere

A. G. Ponomarenko, G. N. Grachev, A. A. Zemlyanov, A. A. Pavlov, V. N. Tischenko, A. M. Kabanov, V. A. Pogodaev, J. E. Geynts, A. L. Smirnov, A. A. Pavlov, A. V. Petrov, P. A. Pinaev, P. A. Statsenko

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Proceedings Volume 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 92921X (2014) https://doi.org/10.1117/12.2075969
Event: 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2014, Novosibirsk, Russian Federation

Abstract

The results of laboratory and numerical experiments on propagation of focused intense pulse-periodic and continuous CO₂-laser radiation in the absorbing gas and aerosol media are presented. It is established that focal waist of a laser beam is characterized by reduced heat release that is associated with absorption saturation. It is shown that increase of pulse repetition frequency in a train decreases effect of optical breakdown on path transparence since under the condition of constant mean radiation power peak intensity in each pulse decreases and probability of breakdown onset is reduced.

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A. G. Ponomarenko, G. N. Grachev, A. A. Zemlyanov, A. A. Pavlov, V. N. Tischenko, A. M. Kabanov, V. A. Pogodaev, J. E. Geynts, A. L. Smirnov, A. A. Pavlov, A. V. Petrov, P. A. Pinaev, and P. A. Statsenko "Propagation focus repetitively pulsed laser radiation in gas-aerosol atmosphere", Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92921X (25 November 2014); https://doi.org/10.1117/12.2075969

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