SPACE-CHARGE FIELD LIMITATIONS IN PHOTOREFRACTIVE LINBO3-FE CRYSTALS

被引:26
作者
RUPP, RA
SOMMERFELDT, R
RINGHOFER, KH
KRATZIG, E
机构
[1] Fachbereich Physik der Universität Osnabrück, Osnabrück
来源
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY | 1990年 / 51卷 / 05期
关键词
42.40; 42.70; 72.40;
D O I
10.1007/BF00348974
中图分类号
O59 [应用物理学];
学科分类号
摘要
We use holographic techniques for the investigation of strongly oxidized LiNbO3:Fe crystals with small Fe2+ concentrations and compare the results with theoretical predictions. Experimental evidence is presented for enhanced phase shifts between light intensity pattern and refractive index grating and for limitations of optically induced space charge fields in photovoltaic crystals due to the low concentration of filled traps. Our findings do not support the model of a nonlocal photovoltaic effect in LiNbO3. © 1990 Springer-Verlag.
引用
收藏
页码:364 / 370
页数:7
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