Focusing, Imaging and Fourier Transforming With a Large Numerical Aperture, Dielectric Flat Photonic Crystal Lens in Metamaterial Regime

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dc.contributor.authorÇolak, Evrim
dc.contributor.authorÇakmak, Atilla Özgür
dc.contributor.departmentElektrik-Elektronik Mühendisliğitr_TR
dc.contributor.facultyMühendislik Fakültesitr_TR
dc.date.accessioned2021-11-30T11:42:45Z
dc.date.available2021-11-30T11:42:45Z
dc.date.issued2019-06-30
dc.description.abstractAn untraditional Gradient Index Photonic Crystal (GRIN PC) is employed within the long wavelength regime to exhibit focusing, imaging and Fourier Transforming. A very large numerical aperture is aimed by breaking the paraxial wave approximation and the slowly changing refractive index assumption. This untraditional GRIN PC is shown to exhibit very similar lensing characteristics as its analytically solvable counterparts demonstrate. The results suggest that Fourier Transforming together with Fractional Fourier Transforms can be obtained from the present design. The performance of the GRIN PC lens is very much dependent on the excitation source as it is expected from GRIN optics and adiffractional propagating beams over large distances can be obtained.tr_TR
dc.description.indexTrdizintr_TR
dc.identifier.endpage101tr_TR
dc.identifier.issn/e-issn2618-6462
dc.identifier.issue1tr_TR
dc.identifier.startpage76tr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/76519
dc.identifier.volume69tr_TR
dc.language.isoentr_TR
dc.publisherAnkara Üniversitesi Fen Fakültesitr_TR
dc.relation.journalCommunications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineeringtr_TR
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıtr_TR
dc.subjectGraded Index Photonic Crystal (GRIN) lenstr_TR
dc.subjectFractional Fourier Transformtr_TR
dc.subjectFourier Opticstr_TR
dc.titleFocusing, Imaging and Fourier Transforming With a Large Numerical Aperture, Dielectric Flat Photonic Crystal Lens in Metamaterial Regimetr_TR
dc.typeArticletr_TR

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