title: Anti-diffracting beams through the diffusive optical nonlinearity.
abstract: Anti-diffraction is a theoretically predicted nonlinear optical phenomenon that occurs when a light beam spontaneously focalizes independently of its intensity. We observe anti-diffracting beams supported by the peak-intensity-independent diffusive nonlinearity that are able to shrink below their diffraction-limited size in photorefractive lithium-enriched potassium-tantalate-niobate (KTN:Li).
authors.forename: F
authors.initials: F
authors.lastname: Di Mei
authors.forename: J
authors.initials: J
authors.lastname: Parravicini
authors.forename: D
authors.initials: D
authors.lastname: Pierangeli
authors.forename: C
authors.initials: C
authors.lastname: Conti
authors.forename: A J
authors.initials: AJ
authors.lastname: Agranat
authors.forename: E
authors.initials: E
authors.lastname: DelRe