Article Dans Une Revue Physical Review Letters Année : 1995

Robust Acoustic Time Reversal with High-Order Multiple Scattering

Résumé

We report the first experiments showing the reversibility of transient acoustic waves through high-order multiple scattering by means of an acoustic time-reversal mirror. A point source generates a pulse which scatters through 2000 steel rods immersed in water. The time-reversed waves are found to converge to their source and recover their original wave form, despite the high order of multiple scattering involved and the usual sensitivity to initial conditions of time-reversal processes. Surprisingly, the observed resolution was one-sixth of the theoretical limit for the mirror's aperture.

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hal-03997933 , version 1 (20-02-2023)

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Arnaud Derode, Philippe Roux, Mathias Fink. Robust Acoustic Time Reversal with High-Order Multiple Scattering. Physical Review Letters, 1995, 75, pp.4206 - 4209. ⟨10.1103/physrevlett.75.4206⟩. ⟨hal-03997933⟩
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