title: Anisotropy-controlled topological stability of discrete vortex solitons in optically induced photonic lattices.
abstract: We realize an experimental control over the topological stability of three-lobe discrete vortex solitons by modifying the symmetry of a hexagonal photonic lattice optically induced in a photorefractive crystal. By continuously deforming the lattice wave in one transverse direction, we manipulate the coupling between lattice sites and induce or inhibit the reversal of soliton vorticity.
authors.affiliation: Institut für Angewandte Physik and Center for Nonlinear Science (CeNoS), Westfälische Wilhelms-Universität, 48149 Münster, Germany. bernd.terhalle@uni-muenster.de
authors.forename: Bernd
authors.initials: B
authors.lastname: Terhalle
authors.forename: Dennis
authors.initials: D
authors.lastname: Göries
authors.forename: Tobias
authors.initials: T
authors.lastname: Richter
authors.forename: Patrick
authors.initials: P
authors.lastname: Rose
authors.forename: Anton S
authors.initials: AS
authors.lastname: Desyatnikov
authors.forename: Friedemann
authors.initials: F
authors.lastname: Kaiser
authors.forename: Cornelia
authors.initials: C
authors.lastname: Denz