Simulation of nonlinear evolution of a high-power laser field in layered media

Anastasia S. Gruzdeva; Vitali E. Gruzdev

doi:10.1117/12.308353

19 May 1998 Simulation of nonlinear evolution of a high-power laser field in layered media

Anastasia S. Gruzdeva, Vitali E. Gruzdev

Proceedings Volume 3263, Nonlinear Optical Engineering; (1998) https://doi.org/10.1117/12.308353
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

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.

Citation Download Citation

Anastasia S. Gruzdeva and Vitali E. Gruzdev "Simulation of nonlinear evolution of a high-power laser field in layered media", Proc. SPIE 3263, Nonlinear Optical Engineering, (19 May 1998); https://doi.org/10.1117/12.308353

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