Acoustic time-reversal through high-order multiple scattering

2002 ◽  
Author(s):  
A. Derode ◽  
P. Roux ◽  
M. Fink
Keyword(s):  
Multiple Scattering ◽  
Time Reversal ◽  
High Order

Robust Acoustic Time Reversal with High-Order Multiple Scattering

1995 ◽  
Vol 75 (23) ◽  
pp. 4206-4209 ◽  
Author(s):  
Arnaud Derode ◽  
Philippe Roux ◽  
Mathias Fink
Keyword(s):  
Multiple Scattering ◽  
Time Reversal ◽  
High Order

One‐bit time reversal through high‐order multiple scattering media

1999 ◽  
Vol 105 (2) ◽  
pp. 955-955
Author(s):  
Arnaud Derode ◽  
Arnaud Tourin ◽  
Mathias Fink
Keyword(s):  
Multiple Scattering ◽  
Time Reversal ◽  
High Order ◽  
Scattering Media

On the Role of High-Order Multiple Scattering Terms in Br K-Edge XANES of the Ionic Conductor AgBr

1993 ◽  
Vol 176 (2) ◽  
pp. 503-510 ◽  
Author(s):  
A. V. Soldatov ◽  
T. S. Ivanchenko ◽  
S. Della Longa ◽  
A. Bianconi
Keyword(s):  
Multiple Scattering ◽  
High Order ◽  
Ionic Conductor

scholarly journals Unified double- and single-sided homogeneous Green’s function representations

2016 ◽  
Vol 472 (2190) ◽  
pp. 20160162 ◽  
Author(s):  
Kees Wapenaar ◽  
Joost van der Neut ◽  
Evert Slob
Keyword(s):  
Green’S Function ◽  
Multiple Scattering ◽  
Green's Function ◽  
Time Reversal ◽  
Wave Theory ◽  
Boundary Integral ◽  
Open Boundary ◽  
Quantum Mechanical ◽  
Holographic Imaging ◽  
Scattering Time

In wave theory, the homogeneous Green’s function consists of the impulse response to a point source, minus its time-reversal. It can be represented by a closed boundary integral. In many practical situations, the closed boundary integral needs to be approximated by an open boundary integral because the medium of interest is often accessible from one side only. The inherent approximations are acceptable as long as the effects of multiple scattering are negligible. However, in case of strongly inhomogeneous media, the effects of multiple scattering can be severe. We derive double- and single-sided homogeneous Green’s function representations. The single-sided representation applies to situations where the medium can be accessed from one side only. It correctly handles multiple scattering. It employs a focusing function instead of the backward propagating Green’s function in the classical (double-sided) representation. When reflection measurements are available at the accessible boundary of the medium, the focusing function can be retrieved from these measurements. Throughout the paper, we use a unified notation which applies to acoustic, quantum-mechanical, electromagnetic and elastodynamic waves. We foresee many interesting applications of the unified single-sided homogeneous Green’s function representation in holographic imaging and inverse scattering, time-reversed wave field propagation and interferometric Green’s function retrieval.

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

2004 ◽  
Vol 70 (4) ◽  
Author(s):  
Julien de Rosny ◽  
Arnaud Tourin ◽  
Arnaud Derode ◽  
Bart van Tiggelen ◽  
Mathias Fink
Keyword(s):  
Multiple Scattering ◽  
Time Reversal ◽  
Scattering Media ◽  
Coherent Backscattering

Time reversal versus phase conjugation in a multiple scattering environment

Ultrasonics ◽  
2002 ◽  
Vol 40 (1-8) ◽  
pp. 275-280 ◽  
Author(s):  
Arnaud Derode ◽  
Arnaud Tourin ◽  
Mathias Fink
Keyword(s):  
Multiple Scattering ◽  
Time Reversal ◽  
Phase Conjugation ◽  
Versus Phase
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