Vortex and dipole solitons in lattices possessing defects and dislocations

被引：12

作者：

Bagci, Mahmut ^{[1
]}

Bakirtas, Ilkay ^{[1
]}

Antar, Nalan ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Math, TR-34469 Istanbul, Turkey

来源：

OPTICS COMMUNICATIONS | 2014年 / 331卷

关键词：

Vortex solitons; Edge dislocation; Vacancy defect; WAVE; EQUATIONS; VORTICES;

D O I：

10.1016/j.optcom.2014.06.005

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report the numerical existence of dipole and vortex solitons for the two-dimensional nonlinear Schrodinger (NLS) equation with external potentials that possess strong irregularities, i.e., edge dislocations and a vacancy defects. Multi-humped solitons are computed by employing a spectral fixed-point computational scheme. The nonlinear stability of these solitons is investigated using direct simulations of the NLS equation and it is observed that these multi-humped modes in the defect lattices can be stable or unstable. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：204 / 218

页数：15

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