Multishot laser-induced damage in optical materials: an analysis of main regularities

M. F. Koldunov; Alexander A. Manenkov; I. L. Pokotilo

doi:10.1117/12.307037

20 April 1998 Multishot laser-induced damage in optical materials: an analysis of main regularities

M. F. Koldunov, Alexander A. Manenkov, I. L. Pokotilo

Author Affiliations +

Proceedings Volume 3244, Laser-Induced Damage in Optical Materials: 1997; (1998) https://doi.org/10.1117/12.307037
Event: Laser-Induced Damage in Optical Materials: 1997, 1997, Boulder, CO, United States

Abstract

In this paper we analyze features of absorbing inclusion-initiated laser-induced failure of a transparent dielectric surface in a multishop irradiation regime. Ablation and thermoelastic stress-induced damage mechanisms are investigated. The ablation is shown to be the dominant mechanism in the ultrashort pulsewidth domain, whereas the latter is realized at longer pulses. The alteration of damage mechanisms at pulsewidth variation is also characteristic for intrinsic damage mechanisms. Resent experimental results obtained for the ultrashort pulse damage are critically discussed in a context of a theory developed in this paper.

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M. F. Koldunov, Alexander A. Manenkov, and I. L. Pokotilo "Multishot laser-induced damage in optical materials: an analysis of main regularities", Proc. SPIE 3244, Laser-Induced Damage in Optical Materials: 1997, (20 April 1998); https://doi.org/10.1117/12.307037

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