title: Spectral and temporal speckle field measurements of a random medium.
abstract: The zero-mean circular complex Gaussian field statistics of a random medium are experimentally demonstrated in the optical domain, thus verifying this key assumption of statistical optics. Using a frequency-tunable laser source in a fixed-path-length interferometer, we obtain optical field fluctuations in the time and frequency domains that clearly show that the ensemble-averaged temporal intensity converges to the photon transit time distribution, which for the samples used is in excellent agreement with a diffusion model.
authors.affiliation: School of Electrical and Computer Engineering, Purdue University, 465 Northwestern Avenue, West Lafayette, Indiana 47907-2035, USA. webb@purdue.edu
authors.forename: M A
authors.initials: MA
authors.lastname: Webster
authors.forename: T D
authors.initials: TD
authors.lastname: Gerke
authors.forename: A M
authors.initials: AM
authors.lastname: Weiner
authors.forename: K J
authors.initials: KJ
authors.lastname: Webb