Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/2733
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dc.contributor.authorBabayiğit, Ceren-
dc.contributor.authorEvren, Aydın S.-
dc.contributor.authorBor, Emre-
dc.contributor.authorKurt, Hamza-
dc.contributor.authorTurduev, Mirbek-
dc.date.accessioned2019-12-25T14:03:34Z-
dc.date.available2019-12-25T14:03:34Z-
dc.date.issued2019
dc.identifier.citationBabayiğit, C., Evren, A. S., Bor, E., Kurt, H., and Turduev, M. (2019). Analytical, numerical, and experimental investigation of a Luneburg lens system for directional cloaking. Physical Review A, 99(4), 043831.en_US
dc.identifier.issn 24699926
dc.identifier.urihttps://hdl.handle.net/20.500.11851/2733-
dc.identifier.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.99.043831-
dc.description.abstractIn this study, the design of a directional cloaking based on the Luneburg lens system is proposed and its operating principle is experimentally verified. The cloaking concept is analytically investigated via geometrical optics and numerically realized with the help of the finite-difference time-domain method. In order to benefit from its unique focusing and/or collimating characteristics of light, the Luneburg lens is used. We show that by the proper combination of Luneburg lenses in an array form, incident light bypasses the region between junctions of the lenses, i.e., the "dark zone." Hence, direct interaction of an object with propagating light is prevented if one places the object to be cloaked inside that dark zone. This effect is used for hiding an object which is made of a perfectly electric conductor material. In order to design an implementable cloaking device, the Luneburg lens is discretized into a photonic crystal structure having gradually varying air cylindrical holes in a dielectric material by using Maxwell Garnett effective medium approximations. Experimental verifications of the designed cloaking structure are performed at microwave frequencies of around 8 GHz. The proposed structure is fabricated by three-dimensional printing of dielectric polylactide material and a brass metallic alloy is utilized in place of the perfectly electric conductor material in microwave experiments. Good agreement between numerical and experimental results is found. © 2019 American Physical Society.en_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Aen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMetamaterials en_US
dc.subjectoptics en_US
dc.subjectcarpet cloaken_US
dc.titleAnalytical, Numerical, and Experimental Investigation of a Luneburg Lens System for Directional Cloakingen_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.volume99
dc.identifier.issue4
dc.relation.tubitak[116F182]en_US
dc.identifier.wosWOS:000466234000008en_US
dc.identifier.scopus2-s2.0-85064880473en_US
dc.institutionauthorKurt, Hamza-
dc.identifier.doi10.1103/PhysRevA.99.043831-
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
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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