Controllable transmission and total reflection through an impedance-matched acoustic metasurface

Handle URI:
http://hdl.handle.net/10754/336768
Title:
Controllable transmission and total reflection through an impedance-matched acoustic metasurface
Authors:
Mei, Jun; Wu, Ying ( 0000-0002-7919-1107 )
Abstract:
A general design paradigm for a novel type of acoustic metasurface is proposed by introducing periodically repeated supercells on a rigid thin plate, where each supercell contains multiple cut-through slits that are filled with materials possessing different refractive indices but the same impedance as that of the host medium. When the wavelength of the incident wave is smaller than the periodicity, the direction of the transmitted wave with nearly unity transmittance can be chosen by engineering the phase discontinuities along the transverse direction. When the wavelength is larger than the periodicity, even though the metasurface is impedance matched to the host medium, most of the incident energy is reflected back and the remaining portion is converted into a surface-bound mode. We show that both the transmitted wave control and the high reflection with the surface mode excitation can be interpreted by a unified analytic model based on mode-coupling theory. Our general design principle not only supplies the functionalities of reflection-type acoustic metasurfaces, but also exhibits unprecedented flexibility and efficiency in various domains of wave manipulation for possible applications in fields like refracting, collimating, focusing or absorbing wave energy.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Controllable transmission and total reflection through an impedance-matched acoustic metasurface 2014, 16 (12):123007 New Journal of Physics
Publisher:
IOP Publishing
Journal:
New Journal of Physics
Issue Date:
2-Dec-2014
DOI:
10.1088/1367-2630/16/12/123007
Type:
Article
ISSN:
1367-2630
Sponsors:
King Abdullah University of Science and Technology . National Natural Science Foundation of China . Grant number: 11274120 Fundamental Research Funds for the Central Universities. Grant number: 2014ZG0032
Additional Links:
http://stacks.iop.org/1367-2630/16/i=12/a=123007?key=crossref.6f519e079e76b3de99fee949aa4b0d6e
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorMei, Junen
dc.contributor.authorWu, Yingen
dc.date.accessioned2014-12-07T11:48:18Z-
dc.date.available2014-12-07T11:48:18Z-
dc.date.issued2014-12-02en
dc.identifier.citationControllable transmission and total reflection through an impedance-matched acoustic metasurface 2014, 16 (12):123007 New Journal of Physicsen
dc.identifier.issn1367-2630en
dc.identifier.doi10.1088/1367-2630/16/12/123007en
dc.identifier.urihttp://hdl.handle.net/10754/336768en
dc.description.abstractA general design paradigm for a novel type of acoustic metasurface is proposed by introducing periodically repeated supercells on a rigid thin plate, where each supercell contains multiple cut-through slits that are filled with materials possessing different refractive indices but the same impedance as that of the host medium. When the wavelength of the incident wave is smaller than the periodicity, the direction of the transmitted wave with nearly unity transmittance can be chosen by engineering the phase discontinuities along the transverse direction. When the wavelength is larger than the periodicity, even though the metasurface is impedance matched to the host medium, most of the incident energy is reflected back and the remaining portion is converted into a surface-bound mode. We show that both the transmitted wave control and the high reflection with the surface mode excitation can be interpreted by a unified analytic model based on mode-coupling theory. Our general design principle not only supplies the functionalities of reflection-type acoustic metasurfaces, but also exhibits unprecedented flexibility and efficiency in various domains of wave manipulation for possible applications in fields like refracting, collimating, focusing or absorbing wave energy.en
dc.description.sponsorshipKing Abdullah University of Science and Technology . National Natural Science Foundation of China . Grant number: 11274120 Fundamental Research Funds for the Central Universities. Grant number: 2014ZG0032en
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.urlhttp://stacks.iop.org/1367-2630/16/i=12/a=123007?key=crossref.6f519e079e76b3de99fee949aa4b0d6een
dc.rightsContent from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.en
dc.subjectacoustic metasurfaceen
dc.subjectmode-coupling theoryen
dc.subjectcontrollable transmission and reflectionen
dc.titleControllable transmission and total reflection through an impedance-matched acoustic metasurfaceen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalNew Journal of Physicsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Physics, South China University of Technology, Guangzhou 510640, People's Republic of Chinaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorWu, Yingen
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