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Proceedings Paper

Amplification of anisotropy in glass by the second harmonic of the bichromatic radiation which induced the anisotropy
Author(s): M. K. Balakirev; V. A. Smirnov
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Paper 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.

Paper Details

Date Published: 21 October 1998
PDF: 4 pages
Proc. SPIE 3485, 11th International Vavilov Conference on Nonlinear Optics, (21 October 1998); doi: 10.1117/12.328266
Show Author Affiliations
M. K. Balakirev, Institute of Semiconductor Physics (Russia)
V. A. Smirnov, Institute of Semiconductor Physics (Russia)

Published in SPIE Proceedings Vol. 3485:
11th International Vavilov Conference on Nonlinear Optics
Sergei G. Rautian, Editor(s)

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