Dynamic Correlation in Wave Propagation in Random Media

Abstract

We report time-resolved measurements of the statistics of pulsed transmission through quasi-one-dimensional dielectric media with static disorder. The normalized intensity correlation function with displacement and polarization rotation for an incident pulse of linewidth $\sigma$ at delay time t is a function only of the field correlation function, which is identical to that found for steady-state excitation, and of ${\kappa }_{\sigma }(t)$, the residual degree of intensity correlation at points at which the field correlation function vanishes. The dynamic probability distribution of normalized intensity depends only upon ${\kappa }_{\sigma }(t)$. Steady-state statistics are recovered in the limit $\sigma$->0, in which ${\kappa }_{\sigma =0}$ is the steady-state degree of correlation.

4 RevTex pages, 4 figures

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