Wave propagation and acoustic band gaps of two-dimensional liquid crystal/solid phononic crystals

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buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage7en_US
dc.citation.issueNumber1en_US
dc.citation.spage1en_US
dc.citation.volumeNumber123en_US
dc.contributor.authorOltulu, O.en_US
dc.contributor.authorMamedov, A. M.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2018-04-12T10:37:54Z
dc.date.available2018-04-12T10:37:54Z
dc.date.issued2017en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractThe vast majority of acoustic wave propagation in phononic band studies has been usually carried out by scattering inclusions embedded in a viscoelastic medium, such as air or water. In this study, we present calculated band structure results for the two-dimensional square array geometry of a solid cylindrical scatterer surrounded by a liquid crystal (LC) matrix. Liquid crystals provide a unique combination of liquid-like and crystal-like properties as well as anisotropic properties. The purpose of using LC material is to take advantage of longitudinal acoustic waves propagating parallel (en_US
dc.description.abstract) and perpendicular (⊥) to the nematic liquid crystal (NLC) director n. The compound used in this study was a room temperature NLC, called 5CB (4-pentyl-4′-cyanobiphenyl). The acoustic band structure of a two-dimensional phononic crystal containing a 5CB NLC and lithium tantalate was investigated by the plane wave expansion method. The theoretical results show that the solid/LC system can be tuned in a favorable configuration for adjusting or shifting acoustic band gaps. © 2016, Springer-Verlag Berlin Heidelberg.en_US
dc.description.provenanceMade available in DSpace on 2018-04-12T10:37:54Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2017en
dc.identifier.doi10.1007/s00339-016-0623-5en_US
dc.identifier.issn0947-8396
dc.identifier.urihttp://hdl.handle.net/11693/36375
dc.language.isoEnglishen_US
dc.publisherSpringer Verlagen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s00339-016-0623-5en_US
dc.source.titleApplied Physics A: Materials Science and Processingen_US
dc.subjectAcoustic devicesen_US
dc.subjectAcoustic wavesen_US
dc.subjectAcousticsen_US
dc.subjectBand structureen_US
dc.subjectCrystal structureen_US
dc.subjectEnergy gapen_US
dc.subjectLiquid crystalsen_US
dc.subjectLiquidsen_US
dc.subjectNematic liquid crystalsen_US
dc.subjectPhononsen_US
dc.subjectAcoustic band gapsen_US
dc.subjectAnisotropic propertyen_US
dc.subjectLongitudinal acoustic wavesen_US
dc.subjectNematic liquid crystals (NLC)en_US
dc.subjectPlane wave expansion methoden_US
dc.subjectTwo-dimensional liquid crystalsen_US
dc.subjectTwo-dimensional phononic crystalsen_US
dc.subjectVisco-elastic mediumsen_US
dc.subjectAcoustic wave propagationen_US
dc.titleWave propagation and acoustic band gaps of two-dimensional liquid crystal/solid phononic crystalsen_US
dc.typeArticleen_US

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