Self-collimated slow sound in sonic crystals

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dc.authoridulug, bulent/0000-0003-1744-6861
dc.authoridCicek, Ahmet/0000-0002-7686-0045
dc.authoridKAYA, Olgun Adem/0000-0002-8728-6341
dc.authorwosidKAYA, Olgun Adem/ABH-6274-2020
dc.authorwosidKAYA, Olgun Adem/Q-1686-2015
dc.authorwosidulug, bulent/C-2988-2016
dc.authorwosidCicek, Ahmet/D-5990-2012
dc.contributor.authorKaya, Olgun Adem
dc.contributor.authorCicek, Ahmet
dc.contributor.authorUlug, Bulent
dc.date.accessioned2024-08-04T20:36:07Z
dc.date.available2024-08-04T20:36:07Z
dc.date.issued2012
dc.departmentİnönü Üniversitesien_US
dc.description.abstractSelf-collimated slow-sound propagation in a two-dimensional rectangular sonic crystal composed of elliptical scatterers in air is numerically demonstrated. The group velocity at the centre and the edges of the fourth acoustic band is reduced to 45 m s(-1) and 30 m s(-1), corresponding to 1/8 and 1/12 of the speed of sound in air, respectively. Elimination of omni-directional reflections encountered in linear waveguides and the reduction of group-velocity dispersion at the mid-band frequencies lead to preservation of pulse shape and amplitude upon traversal of the sonic crystal. Wave transmission is increased from approximately -20 to -2.5 dB, with almost an order of magnitude enhancement, via injector layers optimized through a pattern search algorithm. Self-collimating performance of the system is not degraded under oblique incidence, except for pulse broadening due to increased effective source width.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [101T605]; Akdeniz University Scientific Research Projects Coordination Uniten_US
dc.description.sponsorshipThis study is supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under the grant number 101T605 and the Akdeniz University Scientific Research Projects Coordination Unit.en_US
dc.identifier.doi10.1088/0022-3727/45/36/365101
dc.identifier.issn0022-3727
dc.identifier.issn1361-6463
dc.identifier.issue36en_US
dc.identifier.scopus2-s2.0-84865984860en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1088/0022-3727/45/36/365101
dc.identifier.urihttps://hdl.handle.net/11616/95795
dc.identifier.volume45en_US
dc.identifier.wosWOS:000308797900001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIop Publishing Ltden_US
dc.relation.ispartofJournal of Physics D-Applied Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLighten_US
dc.titleSelf-collimated slow sound in sonic crystalsen_US
dc.typeArticleen_US

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