title: Breakdown of diffusion in dynamics of extended waves in mesoscopic media.
abstract: We report the observation of nonexponential decay of pulsed microwave transmission through quasi-one-dimensional random dielectric media signaling the breakdown of the diffusion model. The decay rate of transmission falls nearly linearly in time corresponding to a nearly Gaussian distribution of the coupling strengths of quasinormal electromagnetic modes to free space at the sample surfaces. The peak and width of this distribution scale as L(-2.05) and L(-1.81), respectively.
authors.affiliation: Department of Physics, Queens College of the City University of New York, Flushing, New York 11367, USA.
authors.forename: A A
authors.initials: AA
authors.lastname: Chabanov
authors.forename: Z Q
authors.initials: ZQ
authors.lastname: Zhang
authors.forename: A Z
authors.initials: AZ
authors.lastname: Genack