Polarization self-modulation of the nonstationary speckle field in a photorefractive crystal

被引：32
作者：
Kamshilin, AA
Paivasaari, K
Khomenko, AV
Fuentes-Hernández, C
机构：
[1] Univ Joensuu, Dept Phys, FIN-80101 Joensuu, Finland
[2] Ctr Invest Cient & Educ Super Ensenada, Ensenada, Baja California, Mexico
来源：
OPTICS LETTERS | 1999年 / 24卷 / 12期
关键词：
D O I：
10.1364/OL.24.000832
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have observed the nonstationary polarization modulation of a speckle pattern transmitted through a photorefractive crystal under the alternating electric field of a square-wave form. A simple model based on Gaussian-beam propagation in the crystal with the diffusion type of nonlinearity is proposed to explain the main features of the experiment. Application of the phenomenon to noncontact and highly sensitive measurements of a rough surface movement is suggested. (C) 1999 Optical Society of America.
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页码：832 / 834
页数：3
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