Threshold effect of incident light intensity on the photorefractive light-induced scattering in double-doped lithium niobate crystals and its application

被引：0

作者：

张国权

许京军

张心正

孙骞

李冠告

刘思敏

张光寅

机构：

[1] China

[2] College of Physics Science

[3] Nankai University

[4] Photonics Research Center

[5] Tianjin 300071

来源：

Progress in Natural Science | 2000年 / 06期

关键词：

lithium niobate; scattering; threshold intensity; amplification; noise;

D O I：

暂无

中图分类号：

O73 [晶体物理];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The formation mechanism of fanning noise in lithium niobate crystal is theoretically studied using the multi-wave mixing model. The threshold effect of incident light intensity for the photorefractive light-induced scattering in double doped lithium niobate crystal is explained by combining the multi-wave mixing model with the two-photorefractive-sensitive-center model for single charge-carrier. Light amplification competition between the fanning noise and the signal beam in doped lithium niobate crystals is also studied. The existence of optimum photovoltaic field and optimum pump intensity is predicted theoretically. .

引用

页码：34 / 41

页数：8