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Proceedings Paper

Simulation of nonlinear evolution of a high-power laser field in layered media
Author(s): Anastasia S. Gruzdeva; Vitali E. Gruzdev
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Paper Abstract

Nonlinear propagation of plane high-power wave through both single dielectric layer and multilayer coating is investigated with computer modeling. Laser intensity is supposed to be high enough to induce considerable variations of refraction index. Laser-field evolution is investigated for cases of coatings with step and gradient sine-shaped variations of refraction index for both high-reflection and anti-reflection coatings. Formation of multiple field disruptions has been observed and shown to begin under certain combination of field parameters. The disruptions can result in formation of positive feedback resulting in super local blow-up instability of field amplitude developing within less than one tenth of laser period. Influence of coatings parameters upon blow-up field instability is investigated. Results of modeling are compared with theoretical calculations and discussed from the viewpoint of laser-induced damage of optical coatings.

Paper Details

Date Published: 19 May 1998
PDF: 11 pages
Proc. SPIE 3263, Nonlinear Optical Engineering, (19 May 1998); doi: 10.1117/12.308353
Show Author Affiliations
Anastasia S. Gruzdeva, S.I. Vavilov State Optical Institute (Russia)
Vitali E. Gruzdev, S.I. Vavilov State Optical Institute (Russia)


Published in SPIE Proceedings Vol. 3263:
Nonlinear Optical Engineering
Metin S. Mangir, Editor(s)

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