PHOTOREFRACTIVE PROPERTIES OF CONGRUENT AND STOICHIOMETRIC LITHIUM-NIOBATE AT HIGH LIGHT INTENSITIES

被引：110

作者：

JERMANN, F

SIMON, M

KRATZIG, E

机构：

[1] Fachbereich Physik, Universität Osnabrück, Osnabrück, D-49069

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1995年 / 12卷 / 11期

关键词：

D O I：

10.1364/JOSAB.12.002066

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In lithium niobate crystals the focused beam of an argon-ion laser induces birefringence changes. We investigate the intensity dependences of the saturation value of these birefringence changes, the photoconductivity, and the photorefractive sensitivity in nominally pure crystals with different lithium contents and in an iron-doped sample. All experimental results can be described assuming Fe-2+/3+ centers-of low concentration in the nominally pure samples-and, in addition, intrinsic Nb-Li polarons as a second photoactive center. (C) 1995 Optical Society of America

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页码：2066 / 2070

页数：5

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