title: Anomalous transient behavior from an inhomogeneous initial optical vortex density.
abstract: Inhomogeneous optical vortex densities can be produced in stochastic optical fields by a combination of coherent and incoherent superposition of speckle fields. During subsequent propagation, the inhomogeneity in the vortex density decays away. However, the decay curves contain oscillatory features that are counterintuitive: for a short while, the inhomogeneity actually increases. We provide numerical simulations and analytic calculations to study the appearance of the anomalous features in the decay curves.
authors.affiliation: National Laser Centre, CSIR, P.O. Box 395, Pretoria 0001, South Africa. fsroux@csir.co.za
authors.forename: Filippus S
authors.initials: FS
authors.lastname: Roux