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

被引：1

作者：

Balakirev, MK ^{[1
]}

Smirnov, VA ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Semicond Phys, Siberian Branch, Novosibirsk 630090, Russia

来源：

11TH INTERNATIONAL VAVILOV CONFERENCE ON NONLINEAR OPTICS | 1998年 / 3485卷

关键词：

D O I：

10.1117/12.328266

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Exposure of oxide glass to two coherent light beams with different frequencies omega and 2 omega leads to the buildup cf 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 an coherent photovoltaic effect. Mechanisms of the limitation of instability are analysed. 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.

引用

页码：436 / 439

页数：4