Recording of second-harmonic index gratings in photorefractive (K0.5Na0.5)0.2(Sr0.75Ba0.25)0.9Nb2O6 crystals

被引：7
|
作者：
Shen, XN [1 ]
Zhao, JH
Wang, RB
Yi, XM
Yeh, P
机构：
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
OPTICS LETTERS | 1999年 / 24卷 / 05期
关键词：
D O I：
10.1364/OL.24.000312
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose and demonstrate a novel method for recording second-harmonic volume index gratings in photorefractive crystals. The fundamental component of the index grating is eliminated by means of a pi-phase shifted double-exposure process that uses the Mach-Zehnder interferometric technique. Experimental results for (K0.5Na0.5)(0.2)(Sr0.75Ba0.25)(0.9)Nb2O6 crystals are presented and discussed. (C) 1999 Optical Society of America.
引用
收藏
页码：312 / 314
页数：3
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