Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/2725
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dc.contributor.authorYıldırım, Bumin K.-
dc.contributor.authorBor, Emre-
dc.contributor.authorKurt, Hamza-
dc.contributor.authorTurduev, Mirbek-
dc.date.accessioned2019-12-25T14:03:33Z
dc.date.available2019-12-25T14:03:33Z
dc.date.issued2019
dc.identifier.citationYildirim, B. K., Bor, E., Kurt, H., and Turduev, M. (2019, July). A Broadband Polarization-Insensitive Diffractive Lens Design for Subwavelength Focusing of Light. In 2019 21st International Conference on Transparent Optical Networks (ICTON) (pp. 1-4). IEEE.en_US
dc.identifier.isbn978-172812779-8
dc.identifier.issn21627339
dc.identifier.urihttps://ieeexplore.ieee.org/document/8840266-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/2725-
dc.description.abstractIn this study, we propose the metaheuristic design of a polarization-insensitive diffractive lens. The designed lens structure consists of concentric dielectric rings with optimally modulated widths and heights. Here, the evolutionary optimization approach is conducted to find the optimum values of concentric rings' widths and heights to obtain polarization-insensitive subwavelength focusing effect of the incident light. Three-dimensional finite-difference time-domain (3D FDTD) method is incorporated with the optimization algorithm to evaluate the focusing ability of instantly designed lens structures throughout the optimization process. The presented lens structure is designed at operating frequency of 10 GHz, and has a diameter of 18.45 cm with thickness of 2.4 cm. The detailed analysis of the polarization-insensitive focusing effect of designed diffractive flat lens is numerically investigated at microwave frequency regime considering the scenario of experimental verification to be conducted at the same spectral region. Possible experimental verifications are discussed along with the 3D-printing of the designed lens structure. As a further step, the presented design concept may be applied to design metasurfaces operating at visible wavelengths. © 2019 IEEE.en_US
dc.language.isoenen_US
dc.publisherIEEE Computer Societyen_US
dc.relation.ispartof 2019 21st International Conference on Transparent Optical Networks (ICTON)en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLensesen_US
dc.subjectfocusingen_US
dc.subjectoptimizationen_US
dc.subjectintegrated opticsen_US
dc.subjectoptical polarizationen_US
dc.subjectbroadband communicationen_US
dc.subjectfinite difference methodsen_US
dc.titleA Broadband Polarization-Insensitive Diffractive Lens Design for Subwavelength Focusing of Lighten_US
dc.typeConference Objecten_US
dc.relation.ispartofseriesInternational Conference on Transparent Optical Networksen_US
dc.departmentFaculties, Faculty of Engineering, Department of Electrical and Electronics Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümütr_TR
dc.relation.tubitak[116F182]en_US
dc.identifier.scopus2-s2.0-85073069967en_US
dc.institutionauthorKurt, Hamza-
dc.identifier.doi10.1109/ICTON.2019.8840266-
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.identifier.scopusquality--
item.openairetypeConference Object-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo 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
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