Gap solitons in parity-time complex periodic optical lattices with the real part of superlattices

被引：115

作者：

Zhu, Xing ^{[1
]}

Wang, Hong ^{[1
,2
]}

Zheng, Li-Xian ^{[1
]}

Li, Huagang ^{[3
]}

He, Ying-Ji ^{[4
]}

机构：

[1] S China Univ Technol, Guangdong Engn Res Ctr Semicond Lighting, Sch Sci, Guangzhou 510640, Peoples R China

[2] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[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 | 2011年 / 36卷 / 14期

关键词：

ITERATION METHODS; SOLITARY WAVES; POTENTIALS; SYMMETRY; SPECTRA;

D O I：

10.1364/OL.36.002680

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the existence and stability of gap solitons in parity-time (PT) complex periodic optical lattices with the real part of superlattices. These solitons can stably exist in the semi-infinite gap. We have studied the effects of different relative strengths of the superlattices and different amplitudes of the imaginary part on soliton propagation. It was found that the relative strength of the superlattices and the amplitude of the imaginary part significantly affect the PT symmetry and the stability of solitons in the PT complex periodic optical lattices. (C) 2011 Optical Society of America

引用

页码：2680 / 2682

页数：3

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