Localized surface modes in parity-time-symmetric potentials

被引：7
作者：
Li, Huagang [1 ,2 ]
Shi, Zhiwei [3 ]
Jiang, Xiujuan [3 ]
Zhu, Xing [1 ]
Lai, Tianshu [1 ]
Lee, Chaohong [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[2] Guangdong Univ Educ, Dept Phys, Guangzhou 510303, Guangdong, Peoples R China
[3] Guangdong Univ Technol, Sch Informat Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
OPTICS LETTERS | 2014年 / 39卷 / 17期
基金：
中国国家自然科学基金;
关键词：
SOLITONS; WAVES; REAL;
D O I：
10.1364/OL.39.005154
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate light-beam propagation along the interface between linear and nonlinear media with parity-time symmetry. A novel class of two-dimensional localized surface modes (LSMs) is found analytically and numerically. If the potential is parity-time invariant along the direction parallel to the interface between the two media, stable LSMs can exist. Otherwise, if the potential is parity-time invariant along the direction perpendicular to the interface between the two media, there are no stable LSMs. (C) 2014 Optical Society of America
引用
收藏
页码：5154 / 5157
页数：4
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