Green light direct writing of ferroelectric domains in Mg-doped LiNbO3

被引：8

作者：

Zheng, Shoujun ^{[1
]}

Kong, Yongfa ^{[2
,3
,4
]}

Zhang, Rong ^{[1
]}

Liu, Hongde ^{[1
]}

Chen, Shaolin ^{[2
,3
]}

Zhang, Ling ^{[2
,3
]}

Liu, Shiguo ^{[1
]}

Rupp, Romano ^{[2
,3
,5
]}

Xu, Jingjun ^{[1
]}

机构：

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

[2] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300457, Peoples R China

[3] Nankai Univ, TEDA Appl Phys Sch, Tianjin 300457, Peoples R China

[4] R&D Ctr, Taishan Sports Ind Grp, Leling 253600, Peoples R China

[5] Univ Vienna, Fac Phys, A-1090 Vienna, Austria

来源：

OPTICAL MATERIALS EXPRESS | 2014年 / 4卷 / 02期

基金：

中国国家自然科学基金;

关键词：

LITHIUM-NIOBATE; ELECTRIC-FIELD; CRYSTALS; NUCLEATION; REVERSAL;

D O I：

10.1364/OME.4.000272

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

So far, visible light-induced domain reversal (LIDOR) in LiNbO3 has only been observed to occur under assistance of an external electric field. Here, we develop a two-step technique to directly achieve green-LIDOR for the first time. In the first step, an external electric field as well as the green laser of 532 nm wavelength is applied on the LiNbO3 crystal. In the second step, direct writing of domain structures in LiNbO3 is realized by another 532 nm laser without assistance of external electric field. Green-LIDOR results from a light-induced space-charge field generated by the prior application on an external electric field in the first step. Due to the unique two-step method, our further experiments show that light-induced space-charge field in LIDOR enhances with increasing the applied external electric field. Therefore, we propose a carrier-drift model to this phenomenon. (C) 2014 Optical Society of America

引用

页码：272 / 279

页数：8

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