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Open Access item Extraordinary sound screening in perforated plates

Authors:Estrada, Héctor
Candelas, Pilar
Uris, Antonio
Belmar, Francisco
García de Abajo, F. Javier
Meseguer, Francisco
Issue Date:2008
Publisher:American Physical Society
Citation:Physical Review Letters 101(8): 084302 (2008)
Abstract:We report extraordinary effects in the transmission of sound through periodically perforated plates, supported by both measurements and theory. In agreement with recent observations in slit arrays, M.H. Lu et? al., nearly full transmission is observed at certain resonant frequencies, pointing out similarities of the acoustic phenomena and their optical counterpart. However, acoustic screening well beyond that predicted by the mass law is achieved over a wide range of wavelengths in the vicinity of the period of the array, resulting in fundamentally unique behavior of the sound as compared to light. © 2008 The American Physical Society.
Identifiers:doi: 10.1103/PhysRevLett.101.084302
issn: 0031-9007
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