DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yasa, Utku G. | ko |
dc.contributor.author | Turduev, Mirbek | ko |
dc.contributor.author | Giden, Ibrahim H. | ko |
dc.contributor.author | Kurt, Hamza | ko |
dc.date.accessioned | 2021-04-27T01:30:24Z | - |
dc.date.available | 2021-04-27T01:30:24Z | - |
dc.date.created | 2021-04-27 | - |
dc.date.created | 2021-04-27 | - |
dc.date.created | 2021-04-27 | - |
dc.date.issued | 2018-05 | - |
dc.identifier.citation | PHYSICAL REVIEW B, v.97, no.19 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://hdl.handle.net/10203/282622 | - |
dc.description.abstract | In 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 C-2-symmetric photonic crystals gives rise to the semi-Dirac cone dispersion. The proposed C-2-symmetric photonic crystals behave as epsilon-and-mu-near-zero materials (epsilon(eff) approximate to 0,mu(eff) approximate to 0) along one propagation direction, but behave as epsilon-near-zero material (epsilon(eff) approximate to 0, mu(eff )not equal 0) for the perpendicular direction at semi--Dirac frequency. By extracting the effective medium parameters of the proposed C-4- and C-2-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. | - |
dc.language | English | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Full utilization of semi-Dirac cones in photonics | - |
dc.type | Article | - |
dc.identifier.wosid | 000433007600002 | - |
dc.identifier.scopusid | 2-s2.0-85047214319 | - |
dc.type.rims | ART | - |
dc.citation.volume | 97 | - |
dc.citation.issue | 19 | - |
dc.citation.publicationname | PHYSICAL REVIEW B | - |
dc.identifier.doi | 10.1103/PhysRevB.97.195131 | - |
dc.contributor.localauthor | Kurt, Hamza | - |
dc.contributor.nonIdAuthor | Yasa, Utku G. | - |
dc.contributor.nonIdAuthor | Turduev, Mirbek | - |
dc.contributor.nonIdAuthor | Giden, Ibrahim H. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ZERO-REFRACTIVE-INDEX | - |
dc.subject.keywordPlus | NEGATIVE REFRACTION | - |
dc.subject.keywordPlus | CRYSTALS | - |
dc.subject.keywordPlus | METAMATERIAL | - |
dc.subject.keywordPlus | REALIZATION | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | POINT | - |
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