Relation between time reversal focusing and coherent backscattering in multiple scattering media: A diagrammatic approach - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2004

Relation between time reversal focusing and coherent backscattering in multiple scattering media: A diagrammatic approach

Résumé

In this paper, we revisit one-channel time reversal (TR) experiments through multiple scattering media in the framework of the multiple scattering theory. The hyperresolution and the self-averaging property are retrieved. The developed formalism leads to a deeper understanding of the role of the ladder and most-crossed diagrams in a TR experiment and also establishes the link between TR and coherent backscattering (CBS). Especially, we show that when the initial source and the time reversal point are at the same location, the time-reversed amplitude is twice higher. Surprisingly, this enhancement is due to the ladder diagrams and not to the most-crossed ones, contrary to CBS. These theoretical predictions are confirmed by experimental results. The experiments are performed with ultrasonic waves propagating through a random collection of parallel steel rods.
Fichier principal
Vignette du fichier
derosny-text-reviewd1.pdf (1.56 Mo) Télécharger le fichier

Dates et versions

hal-00001220 , version 1 (27-02-2004)
hal-00001220 , version 2 (08-02-2006)

Identifiants

Citer

Julien de Rosny, Arnaud Tourin, Arnaud Derode, B. van Tiggelen, Mathias Fink. Relation between time reversal focusing and coherent backscattering in multiple scattering media: A diagrammatic approach. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2004, 70, pp.046601. ⟨10.1103/PhysRevE.70.046601⟩. ⟨hal-00001220v2⟩
196 Consultations
293 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More