Diffraction inspired unidirectional and bidirectional beam splitting in defect-containing photonic structures without interface corrugations

buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage1en_US
dc.citation.issueNumber19en_US
dc.citation.spage10en_US
dc.citation.volumeNumber119en_US
dc.contributor.authorColak, E.en_US
dc.contributor.authorSerebryannikov, A. E.en_US
dc.contributor.authorUsik, P. V.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2018-04-12T10:47:16Z
dc.date.available2018-04-12T10:47:16Z
dc.date.issued2016en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractIt is shown that strong diffractions and related dual-beam splitting can be obtained at transmission through the nonsymmetric structures that represent two slabs of photonic crystal (PhC) separated by a single coupled-cavity type defect layer, while there are no grating-like corrugations at the interfaces. The basic operation regimes include unidirectional and bidirectional splitting that occur due to the dominant contribution of the first positive and first negative diffraction orders to the transmission, which is typically connected with different manifestations of the asymmetric transmission phenomenon. Being the main component of the resulting transmission mechanism, diffractions appear owing to the effect exerted by the defect layer that works like an embedded diffractive element. Two mechanisms can co-exist in one structure, which differ, among others, in that whether dispersion allows coupling of zero order to a wave propagating in the regular, i.e., defect-free PhC segments or not. The possibility of strong diffractions and efficient splitting related to it strongly depend on the dispersion properties of the Floquet-Bloch modes of the PhC. Existence of one of the studied transmission scenarios is not affected by location of the defect layer.en_US
dc.description.provenanceMade available in DSpace on 2018-04-12T10:47:16Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2016en
dc.identifier.doi10.1063/1.4949509en_US
dc.identifier.issn0021-8979
dc.identifier.urihttp://hdl.handle.net/11693/36654
dc.language.isoEnglishen_US
dc.publisherAmerican Institute of Physics Inc.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.4949509en_US
dc.source.titleJournal of Applied Physicsen_US
dc.subjectDiffractionen_US
dc.subjectDispersion (waves)en_US
dc.subjectAsymmetric transmissionsen_US
dc.subjectDiffraction ordersen_US
dc.subjectDiffractive elementen_US
dc.subjectDispersion propertiesen_US
dc.subjectDominant contributionsen_US
dc.subjectFloquet-Bloch modeen_US
dc.subjectPhotonic structureen_US
dc.subjectTransmission mechanismsen_US
dc.subjectDefectsen_US
dc.titleDiffraction inspired unidirectional and bidirectional beam splitting in defect-containing photonic structures without interface corrugationsen_US
dc.typeArticleen_US

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