Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/785
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kurt, Hamza | - |
dc.contributor.author | Yasa, Utku G. | - |
dc.contributor.author | Turduev, Mirbek | - |
dc.contributor.author | Giden, İbrahim Halil | - |
dc.date.accessioned | 2019-03-20T18:38:48Z | |
dc.date.available | 2019-03-20T18:38:48Z | |
dc.date.issued | 2018-05-16 | - |
dc.identifier.citation | Yasa, 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.97.195131 | en_US |
dc.identifier.issn | 24699950 | - |
dc.identifier.uri | https://journals.aps.org/prb/pdf/10.1103/PhysRevB.97.195131 | - |
dc.identifier.uri | https://hdl.handle.net/20.500.11851/785 | - |
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 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.iso | en | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.ispartof | Physical Review B | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Negative Refraction | en_US |
dc.subject | Crystals | en_US |
dc.subject | Metamaterial | en_US |
dc.subject | Realization | en_US |
dc.subject | Emission | en_US |
dc.subject | Point | en_US |
dc.subject | Zero-refractive-index | en_US |
dc.title | Full Utilization of Semi-Dirac Cones in Photonics | en_US |
dc.type | Article | en_US |
dc.department | Faculties, Faculty of Engineering, Department of Electrical and Electronics Engineering | en_US |
dc.department | Fakülteler, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü | en_US |
dc.identifier.volume | 97 | en_US |
dc.identifier.issue | 19 | en_US |
dc.identifier.startpage | 195131-1 | en_US |
dc.identifier.endpage | 195131-11 | en_US |
dc.relation.tubitak | 115R036 | - |
dc.identifier.wos | WOS:000433007600002 | - |
dc.identifier.scopus | 2-s2.0-85047214319 | - |
dc.institutionauthor | Kurt, Hamza | - |
dc.identifier.doi | 10.1103/PhysRevB.97.195131 | - |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.scopusquality | N/A | - |
dc.identifier.wosquality | N/A | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | 02.5. 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 |
Files in This Item:
File | Description | Size | Format | |
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PhysRevB.97.195131.pdf | 3.64 MB | Adobe PDF | View/Open |
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