Impacts of uniaxial elongation on the bandstructures of two-dimensional sonic crystals and associated applications

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dc.authoridCicek, Ahmet/0000-0002-7686-0045
dc.authoridulug, bulent/0000-0003-1744-6861
dc.authoridKAYA, Olgun Adem/0000-0002-8728-6341
dc.authorwosidKAYA, Olgun Adem/ABH-6274-2020
dc.authorwosidKAYA, Olgun Adem/Q-1686-2015
dc.authorwosidCicek, Ahmet/D-5990-2012
dc.authorwosidulug, bulent/C-2988-2016
dc.contributor.authorCicek, Ahmet
dc.contributor.authorKaya, Olgun Adem
dc.contributor.authorUlug, Bulent
dc.date.accessioned2024-08-04T20:35:42Z
dc.date.available2024-08-04T20:35:42Z
dc.date.issued2012
dc.departmentİnönü Üniversitesien_US
dc.description.abstractInfluences of uniaxial elongation along the [11] direction of triangular and [10] direction of square sonic crystals under the constraint of conserved unit cell area are investigated by examining band structures and equi-frequency contours. Lowest-lying band gap of the triangular lattice observed at high filling fractions diminishes for negative elongation (compression), whereas another band gap develops at lower frequencies whose width reaches appreciable values for moderate elongation. The band gap of the square lattice, which appears at high filling fractions, is modified slightly with elongation. Frequency ranges of the bands, and thus the group velocities along the high-symmetry directions, vary with elongation which may be useful in applications like slow sound propagation. Elongation is observed to modify the equi-frequency contours significantly through reducing the lattice symmetry. The most prominent impact is the transformation of closed contours into open ones, whereas the rest are stretched either along or normal to the elongation axis of the 1st Brillouin Zone. This observation is utilized to implement wide-band all-angle self-collimation and superprism effect, which are demonstrated through Finite-Element computations. (C) 2011 Elsevier Ltd, All rights reserved.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [TBAG-HD/212 106T479]; Scientific Research Projects Coordination Unit of Akdeniz University; Scientific Research Projects Unit of Inonu Universityen_US
dc.description.sponsorshipFDTD simulations are developed within the framework of the Project TBAG-HD/212 106T479 supported by The Scientific and Technological Research Council of Turkey (TUBITAK). This work is supported by the Scientific Research Projects Coordination Unit of Akdeniz University and the Scientific Research Projects Unit of Inonu University.en_US
dc.identifier.doi10.1016/j.apacoust.2011.06.015
dc.identifier.endpage36en_US
dc.identifier.issn0003-682X
dc.identifier.issn1872-910X
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-84855951464en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage28en_US
dc.identifier.urihttps://doi.org/10.1016/j.apacoust.2011.06.015
dc.identifier.urihttps://hdl.handle.net/11616/95542
dc.identifier.volume73en_US
dc.identifier.wosWOS:000296113300004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofApplied Acousticsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSonic crystalen_US
dc.subjectBand structureen_US
dc.subjectEqui-frequency contoursen_US
dc.subjectSelf-collimationen_US
dc.subjectSuperprism effecten_US
dc.titleImpacts of uniaxial elongation on the bandstructures of two-dimensional sonic crystals and associated applicationsen_US
dc.typeArticleen_US

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