Photorefractive properties of near-stoichiometric LiNbO3 grown from congruent melts containing K2O

被引：23

作者：

Chen, XJ ^{[1
]}

Li, BJ ^{[1
]}

Xu, JJ ^{[1
]}

Zhu, DS ^{[1
]}

Pan, SH ^{[1
]}

Wu, ZK ^{[1
]}

机构：

[1] Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 90卷 / 03期

关键词：

D O I：

10.1063/1.1384489

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The photorefractive properties of nominally pure near-stoichiometric LiNbO3 crystals grown from congruent melts containing 11 mol % K2O are studied, and some photorefractive properties which are very different from those in congruent LiNbO3 crystals are observed. Large stationary energy transfer (Gamma (max)=25 cm(-1)) exists in near-stoichiometric crystals though the photovoltaic field is dominant. The light-induced scattering fanning is markedly asymmetric in the crystals, which is very different from the symmetric fanning observed in congruent ones. Our analysis shows that these differences are caused by the large photovoltaic field and the relatively small density of filled traps in as-grown near-stoichiometric LiNbO3. (C) 2001 American Institute of Physics.

引用

页码：1516 / 1520

页数：5

共 23 条

[21]

Wohlecke M, 1996, APPL PHYS B-LASERS O, V63, P323, DOI 10.1007/BF01828734

[22] DEPENDENCE OF SPECKLON SIZE ON THE LASER-BEAM SIZE VIA PHOTOINDUCED LIGHT-SCATTERING IN LINBO3-FE [J].

ZHANG, GY ;

LI, QX ;

HO, PP ;

LIU, SM ;

WU, ZK ;

ALFANO, RR .

APPLIED OPTICS, 1986, 25 (17) :2955-2959

[23] CATION SUBSTITUTION MODELS OF CONGRUENT LINBO3 INVESTIGATED BY X-RAY AND NEUTRON POWDER DIFFRACTION [J].

ZOTOV, N ;

BOYSEN, H ;

FREY, F ;

METZGER, T ;

BORN, E .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1994, 55 (02) :145-152

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