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dc.contributor.authorMei, Jun
dc.contributor.authorWu, Ying
dc.date.accessioned2014-12-07T11:48:18Z
dc.date.available2014-12-07T11:48:18Z
dc.date.issued2014-12-02
dc.identifier.citationControllable transmission and total reflection through an impedance-matched acoustic metasurface 2014, 16 (12):123007 New Journal of Physics
dc.identifier.issn1367-2630
dc.identifier.doi10.1088/1367-2630/16/12/123007
dc.identifier.urihttp://hdl.handle.net/10754/336768
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.
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: 2014ZG0032
dc.language.isoen
dc.publisherIOP Publishing
dc.relation.urlhttp://stacks.iop.org/1367-2630/16/i=12/a=123007?key=crossref.6f519e079e76b3de99fee949aa4b0d6e
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.
dc.subjectacoustic metasurface
dc.subjectmode-coupling theory
dc.subjectcontrollable transmission and reflection
dc.titleControllable transmission and total reflection through an impedance-matched acoustic metasurface
dc.typeArticle
dc.contributor.departmentApplied Mathematics and Computational Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentWaves in Complex Media Research Group
dc.identifier.journalNew Journal of Physics
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Physics, South China University of Technology, Guangzhou 510640, People's Republic of China
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personWu, Ying
refterms.dateFOA2018-06-13T10:41:02Z


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