Surface superlattice solitons in nonlocal nonlinear media

被引：0

作者：

Huang Hui-Chang ^{[1
]}

He Ying-Ji ^{[1
,2
]}

Wang He-Zhou ^{[1
]}

机构：

[1] Zhongshan Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[2] Guangdong Polytech Normal Univ, Sch Elect & Informat, Guangzhou 510665, Guangdong, Peoples R China

来源：

CHINESE PHYSICS B | 2009年 / 18卷 / 11期

基金：

中国国家自然科学基金;

关键词：

surface solitons; superlattice; nonlocal nonlinearity; WAVE-GUIDE ARRAYS; SPATIAL SOLITONS; LIGHT BULLETS; LATTICES;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyse surface solitons at the interface between a one-dimensional photonic superlattice and a uniform medium with weak nonlocal nonlinearity. We demonstrate that in deep lattices there exist three kinds of surface solitons when the propagation constant exceeds a critical value, including two on-site solitons and one off-site soliton. These three kinds of surface solitons have unique dynamical properties. If the relative depth of the superlattice is low, there is only one kind of off-site soliton; however, the solitons of this kind can propagate stably, unlike their deep superlattice counterparts. Dipole surface solitons are also investigated, and the stable domain is given.

引用

页码：4919 / 4923

页数：5

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