Features of crater formation on a target under the action of powerful laser pulse

Alexander A. Rupasov; E. A. Bolkhovitinov; I. Ya. Doskach; Alexei A. Erokhin; S. I. Fedotov; L. P. Feoktistov; Sergei Yu Gus'kov; B. V. Kruglov; M. V. Osipov; V. N. Puzirev; Vladislav B. Rozanov; Andrei S. Shikanov; V. B. Studenov; B. L. Vasin; Oleg F. Yakushev

doi:10.1117/12.536466

12 December 2003 Features of crater formation on a target under the action of powerful laser pulse

Alexander A. Rupasov, E. A. Bolkhovitinov, I. Ya. Doskach, Alexei A. Erokhin, S. I. Fedotov, L. P. Feoktistov, Sergei Yu Gus'kov, B. V. Kruglov, M. V. Osipov, V. N. Puzirev, Vladislav B. Rozanov, Andrei S. Shikanov, V. B. Studenov, B. L. Vasin, Oleg F. Yakushev

Author Affiliations +

Proceedings Volume 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter; (2003) https://doi.org/10.1117/12.536466
Event: ECLIM 2002: 27th European conference on Laser Interaction with Matter, 2002, Moscow, Russian Federation

Abstract

The results of experimental and theoretical investigations of craters originating in solid targets of different materials when powerful Nd:glass laser pulse irradiates the surface at flux densities in the range of 10¹⁰ - 10¹⁴ W/cm² are presented. The experimentally observed dependencies of crater depth and ablated mass on laser pulse energy and target material properties are analyzed employing the theory of shock wave initiation and propagation under the action of the plasma-producing laser beam. From the comparison of the theoretically deduced and experimentally observed dependencies, a simple formula is derived allowing to determine the pressures in the shock wave and in the plasma corona using the measurements for the crater depth and ablated mass.

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Alexander A. Rupasov, E. A. Bolkhovitinov, I. Ya. Doskach, Alexei A. Erokhin, S. I. Fedotov, L. P. Feoktistov, Sergei Yu Gus'kov, B. V. Kruglov, M. V. Osipov, V. N. Puzirev, Vladislav B. Rozanov, Andrei S. Shikanov, V. B. Studenov, B. L. Vasin, and Oleg F. Yakushev "Features of crater formation on a target under the action of powerful laser pulse", Proc. SPIE 5228, ECLIM 2002: 27th European Conference on Laser Interaction with Matter, (12 December 2003); https://doi.org/10.1117/12.536466

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