Domain reversion process in near-stoichiometric LiNbO3 crystals

被引：25

作者：

Chen, YL ^{[1
]}

Xu, JJ ^{[1
]}

Chen, XJ ^{[1
]}

Kong, YF ^{[1
]}

Zhang, GY ^{[1
]}

机构：

[1] Nankai Univ, Coll Phys Sci, Photon Ctr, Tianjin 300071, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2001年 / 188卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

near-stoichiometric LiNbO3 crystal; domain reversal; switching field;

D O I：

10.1016/S0030-4018(00)01137-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

LiNbO3 single crystals with a composition close to stoichiometry ([Li]/[Li + Nb] = 0.496) were grown by Czochralski method with K2O flux for the domain reversal characteristics investigation. The switching field for the domain reversal in the near-stoichiometric crystal was 8.0 +/- 0.5 kV/mm, which is about one-third of the switching field required for the congruent LiNbO3 crystals. The resulted long switching time enabled us to observe, for the first time, clear domain growth process in near-stoichiometric LiNbO3 crystals. Slow growth is also found of both the needle-shaped nuclei into larger domains on the existing domain wall and along the electrode fingers. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：359 / 364

页数：6

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