Enhancement of beam coupling in the near infrared for tin hypothiodiphosphate

被引:19
作者
Odoulov, SG [1 ]
Shumelyuk, AN [1 ]
Brost, GA [1 ]
Magde, KM [1 ]
机构
[1] ROME LAB,PHOTON CTR,GRIFFISS AFB,NY 13441
关键词
D O I
10.1063/1.117017
中图分类号
O59 [应用物理学];
学科分类号
摘要
By using the moving grating technique, without an applied electric field, it is possible to significantly increase the steady-state two- beam coupling gain in photorefractive Sn2P2S6. Another technique of gain enhancement consists of cooling of the sample to -30 degrees C. The measured data confirm the existence of two out-of-phase gratings in Sn2P2S6 generated by charge carriers of different sign, with relaxation times of 70 ms and 500 s. (C) 1996 American Institute of Physics.
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页码:3665 / 3667
页数:3
相关论文
共 7 条
[1]   FERROELECTRICITY IN SN2P2S6 [J].
CARPENTI.CD ;
NITSCHE, R .
MATERIALS RESEARCH BULLETIN, 1974, 9 (08) :1097-1100
[2]   CRYSTAL-STRUCTURE OF SN2P2S6 [J].
DITTMAR, G ;
SCHAFER, H .
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 1974, B 29 (5-6) :312-317
[3]  
Grabar A. A., 1991, Soviet Physics - Solid State, V33, P1314
[4]  
GRABAR AA, 1994, UKR PHYS J, V39, P941
[5]  
SHUMELYUK A, 1996, OPT LETT, V21, P752
[6]  
SHUMELYUK A, IN PRESS JOSA B
[7]  
ZIVKOVA S, 1990, J APPL PHYS, V68, P3099