Gap solitons in optical lattices embedded into nonlocal media

Details Gap solitons in optical lattices embedded into nonlocal media Gap solitons in optical lattices embedded into nonlocal media

2010-05-16

arxiv.org/abs/1005.2732v1

Physics

Optics

7 pages, 7 figures, Phys. Rev. A in press

Scientific paper

We analyze the existence, stability, and mobility of gap solitons (GSs) in a periodic photonic structure built into a nonlocal self-defocusing medium. Counter-intuitively, the GSs are supported even by a highly nonlocal nonlinearity, which makes the system quasi-linear. Unlike local models, the variational approximation (VA) predicts the GSs in a good agreement with numerical findings, due to the suppression of undulating tails of the solitons.

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