title: Passive retrieval of Rayleigh waves in disordered elastic media.
abstract: When averaged over sources or disorder, cross correlation of diffuse fields yields the Green's function between two passive sensors. This technique is applied to elastic ultrasonic waves in an open scattering slab mimicking seismic waves in the Earth's crust. It appears that the Rayleigh wave reconstruction depends on the scattering properties of the elastic slab. Special attention is paid to the specific role of bulk to Rayleigh wave coupling, which may result in unexpected phenomena, such as a persistent time asymmetry in the diffuse regime.
authors.affiliation: Laboratoire de Géophysique Interne et Tectonophysique (LGIT), Université Joseph Fourier, CNRS UMR 5559, Grenoble, France. eric.larose@ujf-grenoble.fr
authors.forename: Eric
authors.initials: E
authors.lastname: Larose
authors.forename: Arnaud
authors.initials: A
authors.lastname: Derode
authors.forename: Dominique
authors.initials: D
authors.lastname: Clorennec
authors.forename: Ludovic
authors.initials: L
authors.lastname: Margerin
authors.forename: Michel
authors.initials: M
authors.lastname: Campillo