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Directional Invisibility by Genetic Optimization

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dc.contributor.author Bor, Emre
dc.contributor.author Babayiğit, Ceren
dc.contributor.author Kurt, Hamza
dc.contributor.author Staliunas, Kestutis
dc.contributor.author Turduev, Mirbek
dc.date.accessioned 2019-06-24T10:35:59Z
dc.date.available 2019-06-24T10:35:59Z
dc.date.issued 2018
dc.identifier.issn 0146-9592
dc.identifier.issn 1539-4794
dc.identifier.uri https://doi.org/10.1364/OL.43.005781
dc.identifier.uri https://acikerisim.tedu.edu.tr/xmlui/handle/20.500.12485/59
dc.description.abstract In this Letter, the design of a directional optical cloaking by a genetic algorithm is proposed and realized experimentally. A three-dimensional finite-difference time-domain method is combined with the genetic optimization approach to generate the cloaking structure to directionally cloak a cylindrical object made of a perfect electrical conductor by suppressing the undesired scattered fields around the object. The optimization algorithm designs the permittivity distribution of the dielectric polylactide material to achieve an optical cloaking effect. Experimental verifications of the designed cloaking structure are performed at microwave frequencies, where the proposed structure is fabricated by 3D printing. The imperfect conformal mapping from a large-scale permittivity distribution and the compensation of the remaining scattering by a small-scale permittivity distribution are the basic physical mechanisms of the proposed optical cloaking. (C) 2018 Optical Society of America en_US
dc.language.iso en en_US
dc.publisher OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA en_US
dc.subject Optics en_US
dc.title Directional Invisibility by Genetic Optimization en_US
dc.type Article en_US
dc.relation.journal Optics letters
dc.contributor.authorID 0000-0002-3334-0808
dc.contributor.authorID 0000-0002-1262-3761
dc.identifier.issue 23
dc.identifier.startpage 5781
dc.identifier.endpage 5784
dc.identifier.volume 43


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