title: Spatial solitons in nematic liquid crystals: from bulk to discrete.
abstract: We review theoretical and experimental results on spatial solitons in nematic liquid crystalline cells, including two-dimensional solitons in bulk and discrete solitons in one-dimensional waveguide arrays. In bulk we describe the propagation of continuous solitons in the presence of adjustable walk-off, their interaction with light-induced defects and refraction-reflection at a voltage-tunable interface. In optical lattices we address the transition from discrete diffraction to localization, as well as all-optical beam steering.
authors.affiliation: NOOEL - Nonlinear Optics and OptoElectronics Laboratory, Department of Electronic Engineering, INFN - CNISM - University Roma Tre", Via della Vasca Navale 84, 00146 Rome, Italy. assanto@uniroma3.it
authors.forename: G
authors.initials: G
authors.lastname: Assanto
authors.forename: A
authors.initials: A
authors.lastname: Fratalocchi
authors.forename: M
authors.initials: M
authors.lastname: Peccianti