Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/785
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dc.contributor.authorKurt, Hamza-
dc.contributor.authorYasa, Utku G.-
dc.contributor.authorTurduev, Mirbek-
dc.contributor.authorGiden, İbrahim Halil-
dc.date.accessioned2019-03-20T18:38:48Z
dc.date.available2019-03-20T18:38:48Z
dc.date.issued2018-05-16
dc.identifier.citationYasa, U. G., Turduev, M., Giden, I. H., & Kurt, H. (2018). Full utilization of semi-dirac cones in photonics. Physical Review B, 97(19) doi:10.1103/PhysRevB.97.195131en_US
dc.identifier.issn24699950
dc.identifier.urihttps://journals.aps.org/prb/pdf/10.1103/PhysRevB.97.195131-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/785-
dc.description.abstractIn this study, realization and applications of anisotropic zero-refractive-index materials are proposed by exposing the unit cells of photonic crystals that exhibit Dirac-like cone dispersion to rotational symmetry reduction. Accidental degeneracy of two Bloch modes in the Brillouin zone center of two-dimensional C2-symmetric photonic crystals gives rise to the semi-Dirac cone dispersion. The proposed C2-symmetric photonic crystals behave as epsilon-and-mu-near-zero materials (eff≈0, μeff≈0) along one propagation direction, but behave as epsilon-near-zero material (eff≈0, μeff≠0) for the perpendicular direction at semi-Dirac frequency. By extracting the effective medium parameters of the proposed C4- and C2-symmetric periodic media that exhibit Dirac-like and semi-Dirac cone dispersions, intrinsic differences between isotropic and anisotropic materials are investigated. Furthermore, advantages of utilizing semi-Dirac cone materials instead of Dirac-like cone materials in photonic applications are demonstrated in both frequency and time domains. By using anisotropic transmission behavior of the semi-Dirac materials, photonic application concepts such as beam deflectors, beam splitters, and light focusing are proposed. Furthermore, to the best of our knowledge, semi-Dirac cone dispersion is also experimentally demonstrated for the first time by including negative, zero, and positive refraction states of the given material. © 2018 American Physical Society.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Ben_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNegative Refractionen_US
dc.subjectCrystalsen_US
dc.subjectMetamaterialen_US
dc.subjectRealizationen_US
dc.subjectEmissionen_US
dc.subjectPointen_US
dc.subjectZero-refractive-indexen_US
dc.titleFull Utilization of Semi-Dirac Cones in Photonicsen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Electrical and Electronics Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümütr_TR
dc.identifier.volume97en_US
dc.identifier.issue19en_US
dc.identifier.startpage195131-1en_US
dc.identifier.endpage195131-11en_US
dc.relation.tubitak115R036
dc.identifier.wosWOS:000433007600002en_US
dc.identifier.scopus2-s2.0-85047214319en_US
dc.institutionauthorKurt, Hamza-
dc.identifier.doi10.1103/PhysRevB.97.195131-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextopen-
item.fulltextWith Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.5. Department of Electrical and Electronics Engineering-
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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