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Determination of the optical-breakdown threshold under irradiation of condensed inclusions by pulsed laser radiation

  • Effect of High-Concentration Energy Fluxes on Materials
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Abstract

On the basis of the thermal approach, a mathematical model of the optical breakdown on condensed inclusions exposed to pulsed laser radiation is developed. As individual stages of the process, we consider the particle heating and evaporation, the formation of a vapor aureole and its ionization, as well as the propagation of shock waves in the space surrounding the particle. The threshold characteristics of the laser-beam parameters sufficient for initiating an optical breakdown on metal and dielectric particles, as well as on dielectric liquid drops are determined.

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Authors and Affiliations

  1. D. F. Ustinov Baltic State Technical University “Voenmekh”, 1, 1st Krasnoarmeiskaya Str., St. Petersburg, 190005, Russia

    K. N. Volkov & V. N. Emel’yanov

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  1. K. N. Volkov
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  2. V. N. Emel’yanov
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 6, pp. 106–117, November–December, 2005.

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Volkov, K.N., Emel’yanov, V.N. Determination of the optical-breakdown threshold under irradiation of condensed inclusions by pulsed laser radiation. J Eng Phys Thermophys 78, 1155–1166 (2005). https://doi.org/10.1007/s10891-006-0048-7

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  • DOI: https://doi.org/10.1007/s10891-006-0048-7

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