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Article: A thin and conformal metasurface for illusion acoustics of rapidly changing profiles

TitleA thin and conformal metasurface for illusion acoustics of rapidly changing profiles
Authors
Issue Date2017
PublisherAIP Publishing LLC. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2017, v. 110 n. 15, article no. 151902 How to Cite?
Abstract© 2017 Author(s). Recently developed metasurfaces have been used for surface engineering applications. However, the ability to cloak or mimic reflective surfaces with a large in-plane phase gradient remains unexplored. One major challenge is that even with a small incidence angle, the strong acoustic impedance variation induced by the random height profile creates additional scattering and increases the complexity of the analysis and design of the metasurface. Here, we introduce an acoustic metasurface with 1/12 wavelength thickness to realize an acoustic carpet cloak for a randomly rapid-change surface and a virtual acoustic diffuser from a flat surface using a set of Helmholtz resonators. The limitation of the metasurface for large phase gradient application is explored based on a nonlocal model that considers the contributions from neighboring surface profiles. This study extends the integration of smart acoustic surface and may find applications of surface engineering such as in architectural acoustics.
Persistent Identifierhttp://hdl.handle.net/10722/257129
ISSN
2020 Impact Factor: 3.791
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDubois, Marc-
dc.contributor.authorShi, Chengzhi-
dc.contributor.authorWang, Yuan-
dc.contributor.authorZhang, Xiang-
dc.date.accessioned2018-07-24T08:58:55Z-
dc.date.available2018-07-24T08:58:55Z-
dc.date.issued2017-
dc.identifier.citationApplied Physics Letters, 2017, v. 110 n. 15, article no. 151902-
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10722/257129-
dc.description.abstract© 2017 Author(s). Recently developed metasurfaces have been used for surface engineering applications. However, the ability to cloak or mimic reflective surfaces with a large in-plane phase gradient remains unexplored. One major challenge is that even with a small incidence angle, the strong acoustic impedance variation induced by the random height profile creates additional scattering and increases the complexity of the analysis and design of the metasurface. Here, we introduce an acoustic metasurface with 1/12 wavelength thickness to realize an acoustic carpet cloak for a randomly rapid-change surface and a virtual acoustic diffuser from a flat surface using a set of Helmholtz resonators. The limitation of the metasurface for large phase gradient application is explored based on a nonlocal model that considers the contributions from neighboring surface profiles. This study extends the integration of smart acoustic surface and may find applications of surface engineering such as in architectural acoustics.-
dc.languageeng-
dc.publisherAIP Publishing LLC. The Journal's web site is located at http://apl.aip.org/-
dc.relation.ispartofApplied Physics Letters-
dc.titleA thin and conformal metasurface for illusion acoustics of rapidly changing profiles-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1063/1.4979978-
dc.identifier.scopuseid_2-s2.0-85017298638-
dc.identifier.volume110-
dc.identifier.issue15-
dc.identifier.spagearticle no. 151902-
dc.identifier.epagearticle no. 151902-
dc.identifier.isiWOS:000399689400011-
dc.identifier.issnl0003-6951-

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