title: Finding exact spatial soliton profiles in nematic liquid crystals.
abstract: Finding exact analytical soliton profile solutions is only possible for certain types of non-linear media. In most cases one must resort to numerical techniques to find the soliton profile. In this work we present numerical calculations of spatial soliton profiles in nematic liquid crystals. The nonlinearity is governed by the optical-field-induced liquid crystal director reorientation, which is described by a system of coupled nonlinear partial differential equations. The soliton profile is found using an iterative scheme whereby the induced waveguide and mode profiles are calculated alternatively until convergence is achieved. In this way it is also possible to find higher order solitons. The results in this work can be used to accurately design all-optical interconnections with soliton beams.
authors.affiliation: Liquid Crystals & Photonics Group, Department of Electronics and Information Systems, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium. jeroen.beeckman@elis.ugent.be
authors.forename: J
authors.initials: J
authors.lastname: Beeckman
authors.forename: K
authors.initials: K
authors.lastname: Neyts
authors.forename: P J M
authors.initials: PJ
authors.lastname: Vanbrabant
authors.forename: R
authors.initials: R
authors.lastname: James
authors.forename: F A
authors.initials: FA
authors.lastname: Fernandez
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D008027:Light; D050866:Liquid Crystals / Q000737:chemistry*; D008956:Models, Chemical; D012031:Refractometry; D012542:Scattering, Radiation