title: Miniaturized photogenerated electro-optic axicon lens Gaussian-to-Bessel beam conversion.
abstract: We experimentally demonstrate an electro-optic Gaussian-to-Bessel beam-converter miniaturized down to a 30×30  μm pixel in a potassium-lithium-tantalate-niobate (KLTN) paraelectric crystal. The converter is based on the electro-optic activation of a photoinduced and reconfigurable volume axicon lens achieved using a prewritten photorefractive funnel space-charge distribution. The transmitted light beam has a tunable depth of field that can be more than twice that of a conventional beam with the added feature of being self-healing.
authors.forename: G
authors.initials: G
authors.lastname: Di Domenico
authors.forename: J
authors.initials: J
authors.lastname: Parravicini
authors.forename: G
authors.initials: G
authors.lastname: Antonacci
authors.forename: S
authors.initials: S
authors.lastname: Silvestri
authors.forename: A J
authors.initials: AJ
authors.lastname: Agranat
authors.forename: E
authors.initials: E
authors.lastname: DelRe