GENERATION OF SPATIAL SUBHARMONIC GRATINGS IN THE ABSENCE OF PHOTOREFRACTIVE BEAM COUPLING

被引：36

作者：

MCCLELLAND, TE

WEBB, DJ

STURMAN, BI

RINGHOFER, KH

机构：

[1] RUSSIAN ACAD SCI,INST AUTOMAT & ELECTROMETRY,NOVOSIBIRSK 630090,RUSSIA

[2] UNIV OSNABRUCK,FACHBEREICH PHYS,D-49069 OSNABRUCK,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.73.3082

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a new experimental geometry, we have proved for the first time that the generation of spatial subharmonic gratings in photorefractive crystals is not dependent on optical nonlinearity. We present results which confirm that the subharmonic gratings result from a parametric excitation of ultra low-frequency eigenmodes of a crystal by a time modulated fundamental grating. © 1994 The American Physical Society.

引用

页码：3082 / 3084

页数：3

共 10 条

[1]

AU LB, 1990, PHOTOREFRACTIVE MATE, V2, P87

[2]

Blendovski A., 1992, Soviet Physics - JETP, V75, P215

[3] COMPETITION BETWEEN SUBHARMONIC AND RESONATING BEAMS FOR PHOTOREFRACTIVE GAIN IN BISMUTH SILICON-OXIDE [J].