MECHANISM OF TRANSVERSE INSTABILITY OF COUNTERPROPAGATION IN PHOTOREFRACTIVE MEDIA

被引：12

作者：

STURMAN, B

CHERNYKH, A

机构：

[1] Institute of Automation and Electrometry, Academy of Science, Universitetskij Prospect 1, Novosibirsk

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1995年 / 12卷 / 07期

关键词：

D O I：

10.1364/JOSAB.12.001384

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It is shown that counterpropagation of two light beams in a photorefractive medium can be unstable against spontaneous emission of light waves of the same frequency and polarization traveling at small angles. The mechanism of the instability is based on the buildup of a set of spatial reflection gratings. The threshold thickness and the corresponding emission angle are found. Results of the theory are applied to interpretation of existing experimental data.

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页码：1384 / 1386

页数：3

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