Coherent backscattering effect on wave dynamics in a random medium
Instituut-Lorentz, Universiteit Leiden P.O. Box 9506, 2300 RA
Leiden, The Netherlands
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