Coherent beam amplification with a photorefractive liquid crystal

被引：115

作者：

Khoo, IC

Guenther, BD

Wood, MV

Chen, P

Shih, MY

机构：

[1] Department of Electical Engineering, Pennsylvania State University, University Park

来源：

OPTICS LETTERS | 1997年 / 22卷 / 16期

关键词：

D O I：

10.1364/OL.22.001229

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coherent amplification of a signal beam by a strong pump beam is observed in thin films of fullerene-doped nematic liquid crystal. Exponential gain constants as high as 2890 cm(-1) with no phase cross talk are achieved at low applied dc bias voltage and pump beam intensity. The underlying mechanism is the electro-optically induced spatially reorientation of the liquid-crystal axis and the resultant phase-shifted index grating required for two-beam coupling. (C) 1997 Optical Society of America.

引用

页码：1229 / 1231

页数：3

共 19 条

[1] LASER-BEAM CLEANUP USING PHOTOREFRACTIVE 2-WAVE MIXING AND OPTICAL-PHASE CONJUGATION [J].