Photoinduced Raman scattering in nominally pure lithium niobate crystals

被引：8
|
作者：
Mouras, R
Kostritskii, SM
Bourson, P
Aillerie, M
Fontana, MD
机构：
[1] Univ Metz, CLOES, MPOS, F-57070 Metz, France
[2] Supelec, F-57070 Metz, France
[3] Kemerovo State Univ, Dept Phys, Kemerovo 650043, Russia
来源：
OPTICAL MATERIALS | 2001年 / 18卷 / 01期
关键词：
photorefractive effect; optical damage; Raman scattering; lithium niobate; lithium tantalate;
D O I：
10.1016/S0925-3467(01)00148-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Raman scattering in nominally pure lithium niobate (LiNbO3) and lithium tantalate (LiTaO3) crystals has been studied at high-intensity excitation. Significant photoinduced perturbations of Raman spectra of congruently melting LiNbO3 are discovered in contrast to Raman scattering observed in both nearly stoichiometric LiNbO3 and congruently melting LiTaO3. Our study allows assignment of these perturbations to the photorefractive (PR) effect and, therefore, comparison of the PR damage resistance of the crystals studied. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：127 / 130
页数：4
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