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Dynamic correlation in wave propagation in random media
A A Chabanov1, B Hu, A Z Genack
1Department of Physics, Queens College of the City University of New York, Flushing, NY 11367, USA.
Physical Review Letters
|September 28, 2004
Summary
This study analyzes pulsed transmission through disordered dielectric media. We found that time-resolved intensity statistics depend on field correlations and a residual correlation function, simplifying under certain conditions.
Area of Science:
- Condensed matter physics
- Wave propagation in disordered media
Background:
- Understanding wave transport in disordered systems is crucial for optics and materials science.
- Pulsed transmission statistics reveal dynamic behaviors not seen in steady-state analysis.
Purpose of the Study:
- To analyze time-resolved statistics of pulsed transmission through quasi-one-dimensional disordered dielectric media.
- To determine the key functions governing these statistics.
Main Methods:
- Analysis of field spectra from pulsed transmission experiments.
- Calculation of normalized intensity correlation functions and probability distributions.
Main Results:
- The normalized intensity correlation function depends on the field correlation function and a residual correlation function, kappa(sigma)(t).
- The dynamic probability distribution of normalized intensity is solely determined by kappa(sigma)(t).
- Steady-state statistics are a limiting case when the pulse linewidth approaches zero.
Conclusions:
- The presented framework simplifies the analysis of pulsed wave transport in disordered media.
- The findings offer insights into the statistical properties of light interacting with complex dielectric structures.
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