Two-dimensional multipeak gap solitons supported by parity-time-symmetric periodic potentials

被引：51
|
作者：
Zhu, Xing [1 ,2 ]
Wang, Hong [1 ]
Li, Huagang [2 ,3 ]
He, Wei [1 ]
He, Yingji [4 ]
机构：
[1] S China Univ Technol, Sch Sci, Engn Res Ctr Optoelect Guangdong Prov, Guangzhou 510640, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
[3] Guangdong Univ Educ, Dept Phys, Guangzhou 510303, Guangdong, Peoples R China
[4] Guangdong Polytech Normal Univ, Sch Elect & Informat, Guangzhou 510665, Guangdong, Peoples R China
来源：
OPTICS LETTERS | 2013年 / 38卷 / 15期
关键词：
OPTICAL LATTICES; GAIN;
D O I：
10.1364/OL.38.002723
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on the existence and stability of the two-dimensional multipeak gap solitons in a parity-time-symmetric periodic potential with defocusing Kerr nonlinearity. We investigate the multipeak solitons with all the peaks of the real parts in-phase. It is found that these solitons can be stable in the first gap. The system can support not only the stable solitons with even number peaks, but also the stable solitons with odd number peaks. The transverse energy flow vector of these solitons is also studied. (C) 2013 Optical Society of America
引用
收藏
页码：2723 / 2725
页数：3
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