Modulational instability and solitons in nonlocal media with competing nonlinearities

B. K. Esbensen, A. Wlotzka, Morten Bache, Ole Bang, W. Krolikowski

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Abstract

We investigate analytically and numerically propagation and spatial localization of light in nonlocal media with competing nonlinearities. In particular, we discuss conditions for the modulational instability of plane waves and formation of spatial solitons. We show that the competing focusing and defocusing nonlinearities enable coexistence of dark or bright spatial solitons in the same medium by varying the intensity of the beam.
Original languageEnglish
JournalPhysical Review A
Volume84
Issue number5
Pages (from-to)053854
Number of pages7
ISSN2469-9926
DOIs
Publication statusPublished - 2011

Bibliographical note

Copyright 2011 American Physical Society.

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