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Enhanced acoustical transmission and beaming effect through a single aperture

AuthorsChristensen, J.; Martín-Moreno, Luis ; García-Vidal, F. J.
Issue DateMay-2010
PublisherAmerican Physical Society
CitationPhysical Review B 81(17): 174104 (2010)
AbstractIn this paper we explore from a fundamental theoretical point of view, transmission phenomena of acoustic waves transferred through a single subwavelength slit milled into a sound-hard plate that is textured by surface corrugations. It is shown that the enhanced acoustical transmission unambiguously is linked to the excitation of acoustic surface waves and Fabry-Perot modes within the aperture. With the former resonant condition, we give a prescription on how these surface waves are induced and connected to the formation of a collimated sound beam in the far field.
Description6 páginas, 5 figuras.-- PACS number(s): 78.66.Bz, 42.25.Bs, 41.20.Jb, 73.20.Mf
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.81.174104
Appears in Collections:(ICMA) Artículos
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