Broadband and broadangle extraordinary acoustic transmission through subwavelength apertures surrounded by fluids
Resumen: We 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.
Idioma: Inglés
DOI: 10.1088/1367-2630/16/8/083044
Año: 2014
Publicado en: New Journal of Physics 16 (2014), 083044 [11 pp]
ISSN: 1367-2630

Factor impacto JCR: 3.558 (2014)
Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 10 / 78 = 0.128 (2014) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/MINECO/CSD2007-046
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2011-28581-C02
Tipo y forma: Article (Published version)

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