Domain wall characterization in ferroelectrics by using localized nonlinearities

被引：61
|
作者：
Deng, Xuewei [1 ]
Chen, Xianfeng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, State Key Lab Fiber Opt Local Area Commun Network, Shanghai 200240, Peoples R China
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 15期
基金：
中国国家自然科学基金;
关键词：
STRONTIUM BARIUM NIOBATE; HARMONIC-GENERATION; LITHIUM-NIOBATE; MICROSCOPY; VISUALIZATION; DIFFRACTION; RESOLUTION;
D O I：
10.1364/OE.18.015597
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, a method of domain wall characterization in ferroelectrics through Cherenkov second harmonic generation by localized nonlinearities is proposed. By this method, domain wall width is estimated to be less than 10nm. High spatial angular resolution of about 10mrad in the experiment reveals the fine structures of the domain walls. Combined with scanning techniques, this method can reconstruct domain wall patterns with high resolution. This method has advantages of being nondestructive, noncontact, in situ as well as of high resolution. (C) 2010 Optical Society of America
引用
收藏
页码：15597 / 15602
页数：6
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