Time reversal through a solid-liquid interface and super-resolution

  title={Time reversal through a solid-liquid interface and super-resolution},
  author={Chrysoula Tsogka and G C Papanicolaou},
We present numerical computations that reproduce the time reversal experiments of Draeger, Cassereau and Fink (Draeger et al., 1998), where ultrasound elastic waves are time reversed back to their source with a Time Reversal Mirror (TRM) in a fluid adjacent to the solid. We also show numerically that multipathing caused by random inhomogeneities improves the focusing of the back-propagated elastic waves beyond the diffraction limit seen previously in acoustic wave propagation (Dowling and… CONTINUE READING
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