Intrinsic optical breakdown of glasses

O. N. Bosyi; Leonid B. Glebov; Oleg M. Efimov; Andrei M. Mekryukov; Vladimir S. Popikov

doi:10.1117/12.147424

24 June 1993 Intrinsic optical breakdown of glasses

O. N. Bosyi, Leonid B. Glebov, Oleg M. Efimov, Andrei M. Mekryukov, Vladimir S. Popikov

Proceedings Volume 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992; (1993) https://doi.org/10.1117/12.147424
Event: Optical Materials for High Power Lasers, 1992, Boulder, CO, United States

Abstract

In this paper the influence of multiphoton absorption, self-focusing, absorbing impurity, mode composition, and focusing conditions of laser radiation on the regularities and the absolute values of breakdown threshold of glasses have been studied. The conditions necessary for the realization of intrinsic optical breakdown have been determined. It is shown that under focusing of the neodymium laser radiation in spots of 0.4 - 0.8 micrometers diameters statistical spread in breakdown threshold values, temporal and size dependence are absent. Breakdown thresholds for alkali silicate glass K8 and fused quartz KY1 are similar and are almost 10¹³ W/cm². On the basis of the obtained results a new model of intrinsic optical breakdown mechanism has been proposed.

Citation Download Citation

O. N. Bosyi, Leonid B. Glebov, Oleg M. Efimov, Andrei M. Mekryukov, and Vladimir S. Popikov "Intrinsic optical breakdown of glasses", Proc. SPIE 1848, 24th Annual Boulder Damage Symposium Proceedings -- Laser-Induced Damage in Optical Materials: 1992, (24 June 1993); https://doi.org/10.1117/12.147424

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