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Proceedings Paper

Optical anisotropy in glass induced by intercoherent bichromatic radiation
Author(s): M. K. Balakirev
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Paper Abstract

Original results on experimental investigation of properties of reversible long-living optical anisotropy (OA), induced by coherent radiation in glass, are reviewed. Simultaneous action of two mutually coherent light beams with different frequencies (omega) and 2(omega) on an oxide glass leads to accumulation of a long-living anisotropic modulation of the refraction index ((Delta) n-grating). A phenomenon of light self-diffraction under accumulation of the OA and persistent self-sustained diffraction during grating relaxation in the presence of fundamental beam was evidented. Illumination of (Delta) n-grating by external light source speeds up its relaxation. Monochromatic illumination by any beam, leads to photoelectric instability. That is, weak gratings are amplified while strong weaken. A gigantic reversible light attenuation in the (Delta) n-gratings is discovered. Interpretation of the phenomena is based on the phenomenological model of the coherent photogalvanic effect tending to inhomogeneous accumulation of volume charges and reverse influence of static electric field on beams propagation by electro-optical effects.

Paper Details

Date Published: 21 October 1998
PDF: 8 pages
Proc. SPIE 3485, 11th International Vavilov Conference on Nonlinear Optics, (21 October 1998); doi: 10.1117/12.328275
Show Author Affiliations
M. K. Balakirev, 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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