Anisotropy of nonlinear coupling of two counter-propagating waves in photorefractive Fe:KNbO3

被引：4
作者：
Cook, G.
Carns, J. L.
Saleh, M. A.
Evans, D. R. [1 ]
机构：
[1] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA
[2] Universal Technol Corp, Dayton, OH 45432 USA
[3] Anteon Corp, Dayton, OH 45431 USA
[4] Universal Energy Syst Inc, Dayton, OH 45432 USA
来源：
PHYSICAL REVIEW B | 2006年 / 73卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.73.174102
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dependence of self-pumped photorefractive two-beam coupling in Fe:KNbO3 with crystal angle has been measured at 532 nm for the a-c and b-c crystal planes using a combination of oil immersion and relay imaging. A significant deviation between existing theory and experiment is found for large crystal angles. We propose this is due to a highly anisotropic effective charge trap density in Fe:KNbO3 of almost two orders of magnitude variation with crystal angle in the a-c plane.
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页数：7
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