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Observation of double-charge discrete vortex solitons in hexagonal photonic lattices

Terhalle, Bernd; Richter, T; Law, Kods JH; Gories, D; Rose, P; Alexander, Tristram J; Kevrekidis, P G; Desyatnikov, Anton S; Kaiser, Friedemann; Denz, Cornelia; Krolikowski, Wieslaw; Kivshar, Yuri


We report on the experimental observation of stable double-charge discrete vortex solitons generated in hexagonal photonic lattices created optically in self-focusing nonlinear media and show that single-charge vortex solitons are unstable in analogous conditions. Subsequently, we study, both theoretically and experimentally, the existence and stability of spatial vortex solitons in two-dimensional hexagonal photonic lattices. We demonstrate that the stability of the double-charge vortices is a...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.79.043821


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