title: Second-harmonic generation in vortex-induced waveguides.
abstract: We study the second-harmonic generation and localization of light in a reconfigurable waveguide induced by an optical vortex soliton in a defocusing Kerr medium. We show that the vortex-induced waveguide greatly improves conversion efficiency from the fundamental to the second-harmonic field.
authors.affiliation: Nonlinear Physics Group, Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia. jrs124@rsphysse.anu.edu.au
authors.forename: José R
authors.initials: JR
authors.lastname: Salgueiro
authors.forename: Andreas H
authors.initials: AH
authors.lastname: Carlsson
authors.forename: Elena
authors.initials: E
authors.lastname: Ostrovskaya
authors.forename: Yuri
authors.initials: Y
authors.lastname: Kivshar