Amplification of anisotropy in glass by the second harmonic of the bichromatic radiation which induced the anisotropy

M. K. Balakirev; V. A. Smirnov

doi:10.1117/12.328266

21 October 1998 Amplification of anisotropy in glass by the second harmonic of the bichromatic radiation which induced the anisotropy

M. K. Balakirev, V. A. Smirnov

Author Affiliations +

Proceedings Volume 3485, 11th International Vavilov Conference on Nonlinear Optics; (1998) https://doi.org/10.1117/12.328266
Event: Eleventh International Vavilov Conference on Nonlinear Optics, 1997, Novosibirsk, Russian Federation

Abstract

Exposures of oxide glass to two coherent light beams with different frequencies (omega) and 2(omega) leads to the buildup of spacial index gratings in the glass. This gratings are instable and can be amplified when the glass is illuminated only radiation with the fundamental frequency. In this letter we are reporting about new instability. We observed amplification of the refractive-index when glass was illuminated only second harmonic radiation of the laser. The results of the experiment can be explained by a model of a coherent photovoltaic effect. Mechanisms of the limitation of instability are analyzed. It is assumed that the limitation of the instability is as a result of increasing of the second harmonic radiation absorption, when the refractive-index is intensified.

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M. K. Balakirev and V. A. Smirnov "Amplification of anisotropy in glass by the second harmonic of the bichromatic radiation which induced the anisotropy", Proc. SPIE 3485, 11th International Vavilov Conference on Nonlinear Optics, (21 October 1998); https://doi.org/10.1117/12.328266

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