Open AccessPillar-type acoustic metasurface
Author(s) -
Yabin Jin,
Bernard Bonello,
Rayisa P. Moiseyenko,
Yan Pennec,
Olga Boyko,
Bahram DjafariRouhani
Publication year - 2017
Publication title -
physical review. b./physical review. b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.78
H-Index - 465
eISSN - 2469-9969
pISSN - 2469-9950
DOI - 10.1103/physrevb.96.104311
Subject(s) - antisymmetric relation , amplitude , physics , resonance (particle physics) , phase (matter) , lamb waves , resonator , excited state , bending , dipole , longitudinal wave , pillar , vibration , acoustics , optics , wave propagation , atomic physics , quantum mechanics , structural engineering , mathematical physics , thermodynamics , engineering
International audienceWe theoretically investigate acoustic metasurfaces consisting of either a single pillar or a line of identical pillars on a thin plate, and we report on the dependence on the geometrical parameters of both the monopolar compressional and dipolar bending modes. We show that for specific dimensions of the resonators, a bending and a compressional modes may be simultaneously excited. We study their interaction with an anti-symmetric Lamb wave, whether or not they occur at the same frequency, with particular consideration for the amplitude and phase of waves emitted by the pillars at resonance. Especially, the analysis of both the amplitude and the phase of the wave at the common resonant frequency downstream a line of pillars, demonstrates that the reemitted waves allow for the transmission with phase shift of π
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