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Transmission delay times of localized waves .

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>2001
<mark>Journal</mark>Physical Review E
Volume64
Pages (from-to)026606
Publication StatusPublished
<mark>Original language</mark>English

Abstract

We investigate the effects of wave localization on the delay time � (frequency sensitivity of the scattering phase shift) of a wave transmitted through a disordered waveguide. Localization results in a separation �=�+�� of the delay time into two independent but equivalent contributions, associated to the left and right end of the waveguide. For N=1 propagating modes, � and �� are identical to half the reflection delay time of each end of the waveguide. In this case the distribution function P(�) in an ensemble of random disorder can be obtained analytically. For N>1 propagating modes the distribution function can be approximated by a simple heuristic modification of the single-channel problem. We find a strong correlation between channels with long reflection delay times and the dominant transmission channel.