Full transmission and reflection of waves propagating through a maze of disorder

Thirty years ago, theorists showed that a properly designed combination of incident waves could be fully transmitted through (or reflected by) a disordered medium, based on the existence of propagation channels which are essentially either closed or open (bimodal law). In this Letter, we study elast...

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Bibliographic Details
Published in:Physical review letters 2014-10, Vol.113 (17), p.173901-173901, Article 173901
Main Authors: Gérardin, Benoît, Laurent, Jérôme, Derode, Arnaud, Prada, Claire, Aubry, Alexandre
Format: Article
Language:English
Subjects:
Channels
Disorders
Elastic waves
Incident waves
Laser interferometry
Reflection
Scattering
Wave propagation
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Summary:Thirty years ago, theorists showed that a properly designed combination of incident waves could be fully transmitted through (or reflected by) a disordered medium, based on the existence of propagation channels which are essentially either closed or open (bimodal law). In this Letter, we study elastic waves in a disordered waveguide and present direct experimental evidence of the bimodal law. Full transmission and reflection are achieved. The wave field is monitored by laser interferometry and highlights the interference effects that take place within the scattering medium.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.113.173901