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Stable higher-charge discrete vortices in hexagonal optical lattices

Law, Kods JH; Kevrekidis, P G; Alexander, Tristram J; Krolikowski, Wieslaw; Kivshar, Yuri


We show that double-charge discrete optical vortices may be completely stable in hexagonal photonic lattices where single-charge vortices always exhibit dynamical instabilities. Even when unstable the double-charge vortices typically have a much weaker instability than the single-charge vortices, and thus their breakup occurs at longer propagation distances.

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.79.025801


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