Multi-directional Cerenkov second harmonic generation in two-dimensional nonlinear photonic crystal

被引：6
|
作者：
Sheng, Yan [1 ]
Roppo, Vito [2 ]
Ren, Mingliang [3 ]
Kalinowski, Ksawery [1 ]
Cojocaru, Crina [2 ]
Trull, Jose [2 ]
Li, Zhiyuan [3 ]
Koynov, Kaloian [4 ]
Krolikowski, Wieslaw [1 ]
机构：
[1] Australian Natl Univ, Laser Phys Ctr, Res Sch Phys & Engn, Canberra, ACT 0200, Australia
[2] Univ Politecn Cataluna, Dept Fis & Engn Nucl, Barcelona 08222, Spain
[3] Chinese Acad Sci, Inst Phys, Opt Phys Lab, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
[4] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 04期
基金：
澳大利亚研究理事会;
关键词：
DIFFRACTION; LIGHT;
D O I：
10.1364/OE.20.003948
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study Cerenkov-type second-harmonic generation in a two-dimensional quasi-periodically poled LiNbO3 crystal. We employ a new geometry of interaction to observe simultaneous emission of multidirectional nonlinear Cerenkov radiation with comparable intensities. This opens a way to control the angle of Cerenkov emission by tailoring the nonlinearity of the material, which is otherwise intrinsically defined by dielectric constants of the medium and their dispersion. (C) 2012 Optical Society of America
引用
收藏
页码：3948 / 3953
页数：6
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