dc.contributor.author | Starkey, TA | |
dc.contributor.author | Smith, JD | |
dc.contributor.author | Hibbins, AP | |
dc.contributor.author | Sambles, JR | |
dc.contributor.author | Rance, HJ | |
dc.date.accessioned | 2017-01-23T16:13:02Z | |
dc.date.issued | 2017-01-23 | |
dc.description.abstract | We present a thin acoustic metamaterial absorber, comprised of only rigid metal and air, that gives rise to near unity absorption of airborne sound on resonance. This simple, easily fabricated, robust structure comprising a perforated metal plate separated from a rigid wall by a deeply subwavelength channel of air is an ideal candidate for a sound absorbing panel. The strong absorption in the system is attributed to the thermo-viscous losses arising from a sound wave guided between the plate and the wall, defining the subwavelength channel. | en_GB |
dc.description.sponsorship | The authors wish to acknowledge financial support from DSTL and QinetiQ. | en_GB |
dc.identifier.citation | Vol 110, article 041902 | en_GB |
dc.identifier.doi | 10.1063/1.4974487 | |
dc.identifier.uri | http://hdl.handle.net/10871/25354 | |
dc.language.iso | en | en_GB |
dc.publisher | AIP Publishing | en_GB |
dc.rights.embargoreason | Publisher policy | en_GB |
dc.subject | acoustic absorption | en_GB |
dc.subject | metamaterials | en_GB |
dc.subject | high pressure | en_GB |
dc.subject | acoustic resonance | en_GB |
dc.subject | subwavelength structures | en_GB |
dc.title | Thin structured rigid body for acoustic absorption | en_GB |
dc.type | Article | en_GB |
dc.identifier.issn | 0003-6951 | |
exeter.article-number | 041902 | en_GB |
dc.description | This is the final version of the article. Available from the publisher via the DOI in this record. | en_GB |
dc.identifier.journal | Applied Physics Letters | en_GB |