title: Dynamics of formation and interaction of photorefractive screening solitons.
abstract: An experimental and numerical investigation of the dynamical, time-dependent effects accompanying the formation and interaction of two-dimensional spatial screening solitons in a photorefractive strontium barium niobate crystal is performed. These effects include initial diffraction, collapse to the soliton shape, the oscillation of beam diameters, beam bending, and the rotation, twisting, and turning of soliton pairs. The dynamics of complex spiraling of two incoherent solitons is considered in more detail.
authors.affiliation: Light- and Particle Optics Group, Institute of Applied Physics, Darmstadt University of Technology, Hochschulstrasse 6, D-64289 Darmstadt, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Denz
authors.forename: W
authors.initials: W
authors.lastname: Królikowski
authors.forename: J
authors.initials: J
authors.lastname: Petter
authors.forename: C
authors.initials: C
authors.lastname: Weilnau
authors.forename: T
authors.initials: T
authors.lastname: Tschudi
authors.forename: M R
authors.initials: MR
authors.lastname: Belić
authors.forename: F
authors.initials: F
authors.lastname: Kaiser
authors.forename: A
authors.initials: A
authors.lastname: Stepken