title: Electro-optic beam manipulation through photorefractive needles.
abstract: We demonstrate electro-optic spatial two-dimensional mode switching in a bulk sample of potassium lithium tantalate niobate. Spatial confinement, mode coupling, and electro-optic functionality are mediated by two photorefractive needle solitons of opposite electroholographic charges embedded together in their anisotropic lobular structure.
authors.forename: Eugenio
authors.initials: E
authors.lastname: Delre
authors.forename: Bruno
authors.initials: B
authors.lastname: Crosignani
authors.forename: Paolo
authors.initials: P
authors.lastname: Di Porto
authors.forename: Elia
authors.initials: E
authors.lastname: Palange
authors.forename: Aharon J
authors.initials: AJ
authors.lastname: Agranat