Dynamic Correlation in Wave Propagation in Random Media

Details Dynamic Correlation in Wave Propagation in Random Media Dynamic Correlation in Wave Propagation in Random Media

2004-02-20

arxiv.org/abs/cond-mat/0402525v2

Phys. Rev. Lett. 93, 123901 (2004)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 RevTex pages, 4 figures

Scientific paper

10.1103/PhysRevLett.93.123901

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.

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