title: Nonlocal effect on vortex-induced pattern dynamics.
abstract: We show experimentally and theoretically that the interplay between a vortex-induced pattern rotation and an optical feedback nonlocality-induced pattern drift leads to new dynamics and geometries of optical pattern formation. First, the vortex-induced pattern rotation and the nonlocality-induced drift can annihilate each other, resulting in the formation of static zones in the near field of the otherwise drifting pattern. Second, increasing the external mirror tilt leads to new pattern solutions that are composed of wave vectors of different amplitudes and directions, resulting in a multistriped pattern geometry.
authors.affiliation: Supélec, OPTEL Research Group, Laboratoire Matériaux Optiques, Photonique et Systèmes LMOPS—EA4423, 2 rue Edouard Belin, Metz 57070, France. vianney.caullet@supelec.fr
authors.forename: V
authors.initials: V
authors.lastname: Caullet
authors.forename: N
authors.initials: N
authors.lastname: Marsal
authors.forename: D
authors.initials: D
authors.lastname: Wolfersberger
authors.forename: M
authors.initials: M
authors.lastname: Sciamanna
mesh_terms: D005246:Feedback; D017711:Nonlinear Dynamics; D055096:Optical Devices; D055620:Optical Phenomena; D012399:Rotation