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Título : Extraordinary sound screening in perforated plates
Autor : Estrada, Héctor, Candelas, Pilar, Uris, Antonio, Belmar, Francisco, García de Abajo, F. Javier, Meseguer, Francisco
Fecha de publicación : 2008
Editor: American Physical Society
Citación : Physical Review Letters 101(8): 084302 (2008)
Resumen: 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.
Identificadores: doi: 10.1103/PhysRevLett.101.084302
issn: 0031-9007
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