Two Dimensional Gap Solitons In Self-Defocusing Media With Pt-Symmetric Superlattice

Keywords

Linear stability; Optical lattice; Optical solitons; Parity-time symmetry

Abstract

A theory is presented to study the existence and stability properties of fundamental solitons, multi-peaked gap solitons and vortex solitons in self-defocusing media with PT-symmetric superlattice. In the first gap of the superlattice potential, fundamental, dipole, and in-phase quadruple solitons can exist stably within a wide parameter region, while in-phase two-peaked solitons, out-of-phase quadruple solitons and vortex solitons are always unstable. Compared with simple-lattice solitons in similar potentials, the gap solitons in superlattice have a wider stable range than those in simple-lattice.

Publication Date

9-1-2016

Publication Title

Communications in Nonlinear Science and Numerical Simulation

Volume

38

Number of Pages

130-139

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.cnsns.2016.02.013

Socpus ID

84960111883 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84960111883

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