title: Instability-driven recovery of diffused images.
abstract: We demonstrate the nonlinear recovery of diffused images in a self-focusing photorefractive medium. The method is based on the convolution property of nonlinearity, in which related modes reinforce each other as they propagate. The resulting mode coupling enables energy transfer from the scattered light to the underlying signal. The dynamics is well described by a model in which the signal seeds a modulation instability in the diffused background.
authors.affiliation: General Electric Global Research Center, Niskayuna, New York 12309, USA.
authors.forename: Dmitry V
authors.initials: DV
authors.lastname: Dylov
authors.forename: Laura
authors.initials: L
authors.lastname: Waller
authors.forename: Jason W
authors.initials: JW
authors.lastname: Fleischer
mesh_terms: D004058:Diffusion; D004735:Energy Transfer; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D017711:Nonlinear Dynamics; D012542:Scattering, Radiation