CLAMPED UNCLAMPED ELECTROOPTIC COEFFICIENT DILEMMA IN PHOTOREFRACTIVE PHENOMENA

被引:55
作者
GUNTER, P
ZGONIK, M
机构
[1] Institute of Quantum Electronics, Swiss Federal Institute of Technology, Zürich, CH-8093, ETH Hönggerberg
[2] J. Stefan Institute, Ljubljana, YU-61111
关键词
D O I
10.1364/OL.16.001826
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In a usual photorefractive experiment neither the unclamped nor the clamped linear electro-optic coefficients should be used for calculating the refractive-index change. We show that a crystal deformation in a form of a static plane wave is produced by the space-charge electric-field grating. The total refractive-index change is then calculated by adding together the strain-free electro-optic contribution and the elasto-optic contribution, properly taking into account also the rotation of the axes of the optical indicatrix that is produced by shear deformations. This roto-optic contribution to the photorefractive effect has been overlooked until now.
引用
收藏
页码:1826 / 1828
页数:3
相关论文
共 11 条