Damping-Driven Time Reversal for Waves

[collaboration with the ESPCI – Ecole Superieure de Physique Chimie de Paris]

We present a counterintuitive method to create a time-reversed wave by applying a time-controlled dissipation pulse. By successive application of this principle, we can destroy a monochromatic component of a broad band wave to make an “in situ” spectral hole burning. We demonstrate this technique numerically and an experimental proof is made with a system composed of levitating repelling magnets.


  1. S. Hidalgo-Caballero, S. K. Sreenivas, V. Bacot, S. Wildeman, M. Harazi, X. Jia, A. Tourin, M. Fink, A. Cassinelli, M. Labousse, and E. Fort, Damping-driven time reversal for waves, Physical Review Letters, Vol. 130, Issue 8, DOI: 10.1103/PhysRevLett.130.087201 [24.01.2023]
  2. Hidalgo, S., Kottigegollahalli, S., Harazi, M., Bacot, V., Fink, M., Cassinelli, A., Fort, E. & Labousse, Time reversal of waves and selective spectral hole burning by dissipation pulses, Proc. Waves in Time-Varying Media Workshop Series, Payne, T., Ed Online, [30.06.2021]
  3. . Hidalgo-Caballero, S.K. Sreenivas, M. Harazi, V. Bacot, S. Wildeman, X. Jia, A. Tourin, M, Fink, A. Cassinelli, M. Labousse and E. Fort, Time reversal and spectral wave engineering using damping pulses, 25E RENCONTRE DU NON LINÉAIRE, Université Paris Cité, France (29-31.3.2022)

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