Extraordinary wave dynamics in time-Floquet acoustic systems

We discuss our recent research advances about wave control and manipulation using periodic temporalmodulation of a system’s properties. By using the unique properties of time-Floquet systems, we constructacoustic metamaterials with extreme effective properties, such as zero index of refraction. Furthermore, theinteraction with a periodic drive can lead to power exchange with the wave, providing a unique route to non-Hermiticity. We demonstrate non-Hermitian acoustic systems based on time modulation, such as Parity-Timesymmetric parametric amplifiers.

Presented at:
META 2018 - The 9thInternational Conference on Metamaterials, Photonic Crystals and Plasmonics, Marseille, June 24 - July 1, 2018
Jun 30 2019
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 Record created 2019-05-09, last modified 2019-05-13

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