DEFECT LATTICE SOLITONS IN TWO-DIMENSIONAL KERR MEDIA

被引：0
|
作者：
Wang, Hong [1 ]
He, Wei [1 ]
Zhu, Xing [2 ]
He, Yingji [3 ]
机构：
[1] S China Univ Technol, Sch Sci, Guangdong Engn Res Ctr Solid State Lighting, 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 Polytech Normal Univ, Sch Elect & Informat, Guangzhou 510665, Guangdong, Peoples R China
来源：
ROMANIAN REPORTS IN PHYSICS | 2012年 / 64卷
关键词：
Kerr media; optical lattices; defect solitons; ITERATION METHODS; VORTEX SOLITONS; STABILITY; MODES;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on the existence and stability of two-dimensional fundamental defect solitons in optical lattices based on both focusing and defocusing Kerr media. It is found that in focusing Kerr media, for positive defect, the solitons only exist in the semi-infinite gap; for negative defect, the solitons may stably exist in the semi-infinite and the first gaps. In contrast, in defocusing Kerr media, for positive defect, the solitons exist in both the first gap and semi-infinite gap; while for negative defect, the solitons only exist in the first gap. Additionally, for zero defect, solitons only exist in the semi-infinite gap for focusing media and only exist in the first gap for defocusing media.
引用
收藏
页码：1391 / 1398
页数：8
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