Negative refractions by triangular lattice sonic crystals in partial band gaps

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dc.authoridAlagoz, Baris Baykant/0000-0001-5238-6433
dc.authoridAlagoz, Serkan/0000-0003-2642-8462
dc.authorwosidAlagoz, Baris Baykant/ABG-8526-2020
dc.authorwosidAlagoz, Serkan/ABI-2130-2020
dc.contributor.authorAlagoz, S.
dc.contributor.authorAlagoz, B. B.
dc.contributor.authorSahin, A.
dc.contributor.authorNur, S.
dc.date.accessioned2024-08-04T20:40:08Z
dc.date.available2024-08-04T20:40:08Z
dc.date.issued2015
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThis study numerically demonstrates the effects of partial band gaps on the negative refraction properties of sonic crystal. The partial band gap appearing at the second band edge leads to the efficient transmissions of scattered wave envelopes in the transverse directions inside triangular lattice sonic crystal, and therefore enhances the refraction property of sonic crystal. Numerical simulation results indicate a diagonal guidance of coupled scattered wave envelopes inside crystal structure at the partial band gap frequencies and then output waves are restored in the vicinity of the output interface of sonic crystal by combining phase coherent scattered waves according to Huygens' principles. This mechanism leads to two operations for wavefront engineering: one is spatial wavefront shifting operation and the other is convex-concave wavefront inversion operation. The effects of this mechanism on the negative refraction and wave focalization are investigated by using the finite difference time domain (FDTD) simulations. This study contributes to a better understanding of negative refraction and wave focusing mechanisms at the band edge frequencies, and shows the applications of the slab corner beam splitting and SC-air multilayer acoustic system.en_US
dc.description.sponsorshipInonu University Research Projects Coordination Uniten_US
dc.description.sponsorshipThe authors thank the Inonu University Research Projects Coordination Unit for their support.en_US
dc.identifier.doi10.1088/1674-1056/24/4/046201
dc.identifier.issn1674-1056
dc.identifier.issn1741-4199
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-84926049913en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1088/1674-1056/24/4/046201
dc.identifier.urihttps://hdl.handle.net/11616/96728
dc.identifier.volume24en_US
dc.identifier.wosWOS:000354727300048en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofChinese Physics Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectsonic crystalen_US
dc.subjectnegative refractionen_US
dc.subjectwave focusingen_US
dc.subjectpartial band gapen_US
dc.titleNegative refractions by triangular lattice sonic crystals in partial band gapsen_US
dc.typeArticleen_US

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