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Broadband and broadangle extraordinary acoustic transmission through subwavelength apertures surrounded by fluids

AuthorsCarretero-Palacios, S.; Murray, A. R. J.; Martín-Moreno, Luis ; Hibbins, A. P.
KeywordsSubwavelength apertures
Surface waves
Extraordinary acoustic transmission
Issue Date2014
PublisherInstitute of Physics Publishing
CitationNew Journal of Physics 16: 083044 (2014)
AbstractWe present a mechanism for ultra-broadband transmission of acoustic waves through subwavelength hole arrays. Different fluids surrounding (or filling) the holes are considered, which allows tuning of the band of maximum transmission to different angles of incidence. For certain configurations, this band of total transmission may appear at very small incident angles, making the system 'invisible' to sound at almost normal incidence. Analytical expressions for the specific incident angle, and for maximum transmission at that angle, are provided for any fluid-system configuration. © 2014 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
DescriptionContent from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.
Publisher version (URL)http://dx.doi.org/10.1088/1367-2630/16/8/083044
Identifiersdoi: 10.1088/1367-2630/16/8/083044
issn: 1367-2630
Appears in Collections:(ICMA) Artículos
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