Focusing of THz waves with a microsize parabolic reflector made of graphene in the free space

dc.citation.issueNumber1en_US
dc.citation.volumeNumber13en_US
dc.contributor.authorOguzer T.en_US
dc.contributor.authorAltintas, A.en_US
dc.contributor.authorNosich A.I.en_US
dc.date.accessioned2018-04-12T11:01:08Z
dc.date.available2018-04-12T11:01:08Z
dc.date.issued2017en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractBackground: The scattering of H- and E-polarized plane waves by a two-dimensional (2-D) parabolic reflector made of graphene and placed in the free space is studied numerically. Methods: To obtain accurate results we use the Method of Analytical Regularization. Results: The total scattering cross-section and the absorption cross-section are computed, together with the field magnitude in the geometrical focus of reflector. The surface plasmon resonances are observed in the H-case. The focusing ability of the reflector is studied in dependence of graphene’s chemical potential, frequency, and reflector’s depth. Conclusions: It is found that there exists an optimal range of frequencies where the focusing ability reaches maximum values. The reason is the quick degradation of graphene’s surface conductivity with frequency. © 2017, The Author(s).en_US
dc.description.provenanceMade available in DSpace on 2018-04-12T11:01:08Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2017en
dc.identifier.doi10.1186/s41476-017-0041-0en_US
dc.identifier.issn19902573
dc.identifier.urihttp://hdl.handle.net/11693/37044
dc.language.isoEnglishen_US
dc.publisherSpringer International Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1186/s41476-017-0041-0en_US
dc.source.titleJournal of the European Optical Societyen_US
dc.subjectAnalytical regularizationen_US
dc.subjectFocusing abilityen_US
dc.subjectGraphene reflectoren_US
dc.subjectIntegral equationen_US
dc.subjectFocusingen_US
dc.subjectGrapheneen_US
dc.subjectIntegral equationsen_US
dc.subjectSurface plasmon resonanceen_US
dc.subjectTerahertz wavesen_US
dc.subjectAbsorption cross sectionsen_US
dc.subjectAnalytical regularizationen_US
dc.subjectMethod of analytical regularizationen_US
dc.subjectParabolic reflectoren_US
dc.subjectPolarized plane wavesen_US
dc.subjectSurface conductivityen_US
dc.subjectTotal scattering cross sectionsen_US
dc.subjectTwo Dimensional (2 D)en_US
dc.subjectReflectionen_US
dc.titleFocusing of THz waves with a microsize parabolic reflector made of graphene in the free spaceen_US
dc.typeArticleen_US

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