Quasi-phase-matched second-harmonic Talbot self-imaging in a 2D periodically-poled LiTaO3 crystal

被引：4

作者：

Liu, Dongmei ^{[1
,2
]}

Wei, Dunzhao ^{[1
,2
]}

Zhang, Yong ^{[1
,2
]}

Zou, Jiong ^{[1
,2
]}

Hu, X. P. ^{[1
,2
]}

Zhu, S. N. ^{[1
,2
]}

Xiao, Min ^{[1
,2
,3
]}

机构：

[1] Nanjing Univ, Coll Engn & Appl Sci, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ, Sch Phys, Nanjing 210093, Jiangsu, Peoples R China

[3] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 12期

基金：

美国国家科学基金会;

关键词：

GENERATION;

D O I：

10.1364/OE.21.013969

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the improved second-harmonic Talbot self-imaging through the quasi-phase-matching technique in a 2D periodically-poled LiTaO3 crystal. The domain structure not only composes a nonlinear optical grating which is necessary to realize nonlinear Talbot self-imaging, but also provides reciprocal vectors to satisfy the phase-matching condition for second-harmonic generation. Our experimental results show that quasi-phase-matching can improve the intensity of the second-harmonic Talbot self-imaging by a factor of 21. (C) 2013 Optical Society of America

引用

页码：13969 / 13974

页数：6

共 17 条

[1] Temperature-dependent dispersion relation of ferroelectric lithium tantalate [J].