Investigation of domain walls in periodically poled MgO:LiNbO3 by second harmonic imaging

被引：0
|
作者：
陈云琳 [1 ]
张进宏 [1 ]
李海伟 [1 ]
机构：
[1] School of Science, Beijing Jiaotong University
来源：
Chinese Optics Letters | 2013年 / 11卷 / 03期
基金：
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词：
SHG; MgO;
D O I：
暂无
中图分类号：
TN911.7 [信号处理];
学科分类号：
0711 ; 080401 ; 080402 ;
摘要：
The domain wall regions in periodically poled MgO-doped LiNbO(PPMgLN) crystal are examined by using second harmonic generation (SHG). The results show that the average domain walls that separate the individual domains have a width in the order of about 1 μm, and the walls are neither completely smooth nor uniform along the walls from the imaging of the SHG. It is proposed that the origin of the second harmonic signal in the regions around domain wall is attributed to the non-180°domain walls in the ferroelectric domains.
引用
收藏
页码：45 / 47
页数：3
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