Experimental estimation of the internal electric field and the photoconductivity of a Ba0.77Ca0.23TiO3 crystal (BCT)

被引：0
|
作者：
Matusevich, V [1 ]
Kiessling, A [1 ]
Kowarschik, R [1 ]
机构：
[1] Univ Jena, Inst Appl Opt, D-07743 Jena, Germany
来源：
ICONO 2001: NONLINEAR OPTICAL PHENOMENA AND NONLINEAR DYNAMICS OF OPTICAL SYSTEMS | 2002年 / 4751卷
关键词：
photorefractive optics; two-wave mixing; four-wave mixing;
D O I：
10.1117/12.475918
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Ba0.77Ca0.23TiO3 (BCT) crystals have interesting photorefractive and electrooptic properties as was recently demonstrated by several papers. Analyzing these results and our own experiments we have got the conclusion that there is an effective bulk electric field inside the crystal. In order to estimate the value of the suggested field inside the crystal we have developed an experimental method based on two- and four-wave mixings presented in this paper, whereas we are using a BCT crystal that has been grown by Ch. Kuper and co-workers from the University of Osnabrueck. Knowing the value of the bulk field we have estimated the value of the effective photoconductivity of the crystal.
引用
收藏
页码：252 / 264
页数：13
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