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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    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
    Issue number5
    Pages (from-to)053854
    Number of pages7
    Publication statusPublished - 2011

    Bibliographical note

    Copyright 2011 American Physical Society.


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