title: Incoherent vector vortex-mode solitons in self-focusing nonlinear media.
abstract: We suggest a novel type of composite spatial optical soliton created by a coherent vortex beam guiding a partially incoherent light beam in a self-focusing nonlinear medium. We show that the incoherence of the guided mode may enhance, rather than suppress, the vortex azimuthal instability, and we also demonstrate strong destabilization of dipole-mode solitons by partially incoherent light.
authors.affiliation: Institute of Applied Physics, Darmstadt University of Technology, Darmstadt, Germany.
authors.forename: Kristian
authors.initials: K
authors.lastname: Motzek
authors.forename: Friedemann
authors.initials: F
authors.lastname: Kaiser
authors.forename: José R
authors.initials: JR
authors.lastname: Salgueiro
authors.forename: Yuri
authors.initials: Y
authors.lastname: Kivshar
authors.forename: Cornelia
authors.initials: C
authors.lastname: Denz