Issue |
Europhys. Lett.
Volume 52, Number 5, December I 2000
|
|
---|---|---|
Page(s) | 518 - 524 | |
Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
DOI | https://doi.org/10.1209/epl/i2000-00468-4 | |
Published online | 01 September 2002 |
Coherent backscattering effect on wave dynamics in a random medium
Instituut-Lorentz, Universiteit Leiden P.O. Box 9506, 2300 RA
Leiden, The Netherlands
Received:
27
June
2000
Accepted:
22
September
2000
A dynamical effect of coherent backscattering is predicted theoretically
and supported by computer simulations: The distribution of single-mode
delay times of waves reflected by a disordered waveguide depends on
whether the incident and detected modes are the same or not. The change
amounts to a rescaling of the distribution by a factor close to
. This effect appears only if the length of the waveguide
exceeds the localization length; there is no effect of coherent
backscattering on the delay times in the diffusive regime.
PACS: 42.25.Dd – Wave propagation in random media / 42.25.Hz – Interference / 72.15.Rn – Localization effects (Anderson or weak localization)
© EDP Sciences, 2000
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