title: Polarization rotation induced by cascaded third-order processes.
abstract: Intensity-dependent polarization rotation that results from the simultaneous action of two third-order processes, self-phase modulation and four-wave mixing, is observed. The effect is recorded along the fourfold axis of a YVO(4) crystal. The angle of rotation is proportional to the square of the input intensity-crystal length product. This is to the authors' knowledge the first experimental evidence showing that intensity-dependent polarization rotation can be related to the real part of cubic susceptibility.
authors.forename: N
authors.initials: N
authors.lastname: Minkovski
authors.forename: S M
authors.initials: SM
authors.lastname: Saltiel
authors.forename: G I
authors.initials: GI
authors.lastname: Petrov
authors.forename: O
authors.initials: O
authors.lastname: Albert
authors.forename: J
authors.initials: J
authors.lastname: Etchepare