Phononic crystal surface mode coupling and its use in acoustic Doppler velocimetry

Basit Öğe Kaydı
dc.authoridulug, bulent/0000-0003-1744-6861
dc.authoridCicek, Ahmet/0000-0002-7686-0045
dc.authoridSalman Durmuslar, Aysevil/0000-0001-6998-5942
dc.authoridKAYA, Olgun Adem/0000-0002-8728-6341
dc.authorwosidKAYA, Olgun Adem/ABH-6274-2020
dc.authorwosidulug, bulent/C-2988-2016
dc.authorwosidKAYA, Olgun Adem/Q-1686-2015
dc.authorwosidCicek, Ahmet/D-5990-2012
dc.authorwosidSalman Durmuslar, Aysevil/HJO-8681-2023
dc.contributor.authorCicek, Ahmet
dc.contributor.authorSalman, Aysevil
dc.contributor.authorKaya, Olgun Adem
dc.contributor.authorUlug, Bulent
dc.date.accessioned2024-08-04T20:41:20Z
dc.date.available2024-08-04T20:41:20Z
dc.date.issued2016
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIt is numerically shown that surface modes of two-dimensional phononic crystals, which are Bloch modes bound to the interface between the phononic crystal and the surrounding host, can couple back and forth between the surfaces in a length scale determined by the separation of two surfaces and frequency. Supercell band structure computations through the finite-element method reveal that the surface band of an isolated surface splits into two bands which support either symmetric or antisymmetric hybrid modes. When the surface separation is 3.5 times the lattice constant, a coupling length varying between 30 and 48 periods can be obtained which first increases linearly with frequency and, then, decreases rapidly. In the linear regime, variation of coupling length can be used as a means of measuring speeds of objects on the order of 0.1 m/s by incorporating the Doppler shift. Speed sensitivity can be improved by increasing surface separation at the cost of larger device sizes. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [113F015]; TUBITAK [1929B011200102]en_US
dc.description.sponsorshipThis work is supported by The Scientific and Technological Research Council of Turkey (TUBITAK) under the Grant number 113F015. AS acknowledges support from TUBITAK under the Grant number 1929B011200102.en_US
dc.identifier.doi10.1016/j.ultras.2015.10.017
dc.identifier.endpage86en_US
dc.identifier.issn0041-624X
dc.identifier.issn1874-9968
dc.identifier.pmid26565078en_US
dc.identifier.scopus2-s2.0-84948435117en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage78en_US
dc.identifier.urihttps://doi.org/10.1016/j.ultras.2015.10.017
dc.identifier.urihttps://hdl.handle.net/11616/97066
dc.identifier.volume65en_US
dc.identifier.wosWOS:000365274800011en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofUltrasonicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectPhononic crystalen_US
dc.subjectSurface modesen_US
dc.subjectDoppler shiften_US
dc.subjectFinite-element methoden_US
dc.titlePhononic crystal surface mode coupling and its use in acoustic Doppler velocimetryen_US
dc.typeArticleen_US

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