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Experiments on metasurface carpet cloaking for audible acoustics

Cédric Faure 1 Olivier Richoux 1 Simon Félix 1 Vincent Pagneux 1 
1 LAUM - Laboratoire d'Acoustique de l'Université du Mans
Abstract : We present experiments on acoustic carpet cloaking by using a metasurface made of graded Helmholtz resonators. The thin metasurface, placed over the object to hide, is designed such that the reflection phase shifts of the resonators at the resonance frequency are tuned to compensate the shape of the object to cloak. Experimental as well as numerical results show the efficiency of the cloak at the resonance frequency. The reflection of a short pulse is also reported to inspect the broadband character of the cloak.
Keywords : Organic compounds Antennas Architectural acoustics Microphones Cloaking devices Acoustics 3D printing Seismology Helmholtz resonator Robotics
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Article dans une revue
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https://hal-univ-lemans.archives-ouvertes.fr/hal-02406127
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Soumis le : jeudi 12 décembre 2019 - 08:42:55
Dernière modification le : jeudi 25 novembre 2021 - 09:16:03

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CNRS | UNIV-LEMANS | LAUM

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Cédric Faure, Olivier Richoux, Simon Félix, Vincent Pagneux. Experiments on metasurface carpet cloaking for audible acoustics. Applied Physics Letters, American Institute of Physics, 2016, 108 (6), pp.064103. ⟨10.1063/1.4941810⟩. ⟨hal-02406127⟩

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