Focusing with two-dimensional angular-symmetric circular acoustic lenses

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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.authorwosidCicek, Ahmet/D-5990-2012
dc.authorwosidulug, bulent/C-2988-2016
dc.authorwosidKAYA, Olgun Adem/Q-1686-2015
dc.contributor.authorKaya, Olgun Adem
dc.contributor.authorCicek, Ahmet
dc.contributor.authorUlug, Bulent
dc.date.accessioned2024-08-04T20:32:51Z
dc.date.available2024-08-04T20:32:51Z
dc.date.issued2011
dc.departmentİnönü Üniversitesien_US
dc.description.abstractFocusing properties of an acoustic lens based on a modified triangular sonic crystal slab whose columns are aligned on concentric arcs of equal radial distance are investigated. Capability of focusing normally-incident plane waves is demonstrated by means of Finite Element Method. Focusing mechanisms are discussed on the basis of band structures and equifrequency contours considering a model where triangular lattice is elongated along IK direction. Focusing behavior of the proposed lens is argued to arise from negative refractions at the air-lens interfaces accompanied by index guiding in its interiors. Wavelength-order confinement in the transverse direction is observed. Double focusing is attributed to geometrical effects and contribution of self guiding is discussed. Possibility of occurrence of birefraction at the input face of the lens together with positive refraction at the output face is also discussed.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. Our special thanks go to Prof. Zhengyou Liu and to Dr. Chunyin-Qiu from Wuhan University-China for their kind help in providing MST and EFC codes.en_US
dc.identifier.doi10.1134/S1063771011030067
dc.identifier.endpage300en_US
dc.identifier.issn1063-7710
dc.identifier.issn1562-6865
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-79958011906en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage292en_US
dc.identifier.urihttps://doi.org/10.1134/S1063771011030067
dc.identifier.urihttps://hdl.handle.net/11616/95348
dc.identifier.volume57en_US
dc.identifier.wosWOS:000291055200002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPleiades Publishing Incen_US
dc.relation.ispartofAcoustical Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNegative Refractionen_US
dc.subjectPhotonic Crystalen_US
dc.subjectSonic Crystalen_US
dc.subjectDispersionen_US
dc.subjectWavesen_US
dc.titleFocusing with two-dimensional angular-symmetric circular acoustic lensesen_US
dc.typeArticleen_US

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