Enhanced transmission and beaming via a zero-index photonic crystal

buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage031105-5en_US
dc.citation.issueNumber3en_US
dc.citation.spage031105-1en_US
dc.citation.volumeNumber109en_US
dc.contributor.authorHajian, H.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.contributor.authorCaglayan, H.en_US
dc.date.accessioned2018-04-12T10:47:06Z
dc.date.available2018-04-12T10:47:06Z
dc.date.issued2016en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractCertain types of photonic crystals with Dirac cones at the Γ point of their band structure have a zero effective index of refraction at Dirac cone frequency. Here, by an appropriate design of the photonic structure, we obtain a strong coupling between modes around the Dirac cone frequency of an all-dielectric zero-index photonic crystal and the guided ones supported by a photonic crystal waveguide. Consequently, we experimentally demonstrate that the presence of the zero-index photonic crystal at the inner side of the photonic crystal waveguide leads to an enhancement in the transmission of some of the guided waves passing through this hybrid system. Moreover, those electromagnetic waves extracted from the structure with enhanced transmission exhibit high directional beaming due to the presence of the zero-index photonic crystal at the outer side of the photonic crystal waveguide. © 2016 Author(s).en_US
dc.identifier.doi10.1063/1.4959085en_US
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/11693/36650
dc.language.isoEnglishen_US
dc.publisherAmerican Institute of Physics Inc.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.4959085en_US
dc.source.titleApplied Physics Lettersen_US
dc.titleEnhanced transmission and beaming via a zero-index photonic crystalen_US
dc.typeArticleen_US

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