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dc.contributor.authorSerebryannikov, A.E.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2016-02-08T10:03:05Z
dc.date.available2016-02-08T10:03:05Z
dc.date.issued2009en_US
dc.identifier.issn10944087
dc.identifier.urihttp://hdl.handle.net/11693/22664
dc.description.abstractThe mechanism of achieving unidirectional transmission in the gratings, which only contain isotropic dielectric and metallic layers, is suggested and numerically validated. It is shown that significant transmission in one direction and nearly zero transmission in the opposite direction can be obtained in the same intrinsically isotropic gratings as those studied recently in A. E. Serebryannikov and E. Ozbay, Opt. Express 17, 278 (2009), but at a non-zero angle of incidence. The tilting, non-symmetric features of the grating and the presence of a metallic layer with a small positive real part of the index of refraction are the conditions that are necessary for obtaining the unidirectionality. Single- and multibeam operational regimes are demonstrated. The frequency and angle ranges of the unidirectional transmission can be estimated by using the conventional framework based on isofrequency dispersion contours and construction lines that properly take into account the periodic features of the interfaces, but should then be corrected because of the tunneling arising within the adjacent ranges. After proper optimization, this mechanism is expected to become an alternative to that based on the use of anisotropic materials. © 2009 Optical Society of America.en_US
dc.language.isoEnglishen_US
dc.source.titleOptics Expressen_US
dc.relation.isversionofhttp://dx.doi.org/10.1364/OE.17.013335en_US
dc.subjectRefractive indexen_US
dc.subjectAnisotropic materialen_US
dc.subjectIndex of refractionen_US
dc.subjectIsotropic gratingsen_US
dc.subjectMetallic layersen_US
dc.subjectMulti-beamen_US
dc.subjectPositive realen_US
dc.subjectUnidirectionalityen_US
dc.subjectZero angleen_US
dc.subjectLight transmissionen_US
dc.subjectmetalen_US
dc.subjectarticleen_US
dc.subjectcomputer aided designen_US
dc.subjectcomputer simulationen_US
dc.subjectequipmenten_US
dc.subjectequipment designen_US
dc.subjectinstrumentationen_US
dc.subjectlighten_US
dc.subjectoptical instrumentationen_US
dc.subjectradiation scatteringen_US
dc.subjectrefractometryen_US
dc.subjecttheoretical modelen_US
dc.subjectComputer Simulationen_US
dc.subjectComputer-Aided Designen_US
dc.subjectEquipment Designen_US
dc.subjectEquipment Failure Analysisen_US
dc.subjectLighten_US
dc.subjectMetalsen_US
dc.subjectModels, Theoreticalen_US
dc.subjectOptical Devicesen_US
dc.subjectRefractometryen_US
dc.subjectScattering, Radiationen_US
dc.titleUnidirectional transmission in non-symmetric gratings containing metallic layersen_US
dc.typeArticleen_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.citation.spage13335en_US
dc.citation.epage13345en_US
dc.citation.volumeNumber17en_US
dc.citation.issueNumber16en_US
dc.identifier.doi10.1364/OE.17.013335en_US
dc.publisherOptical Society of American (OSA)en_US
dc.contributor.bilkentauthorÖzbay, Ekmelen_US


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