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dc.contributor.advisorÖzbay, Ekmel
dc.contributor.authorŞahin, Levent
dc.date.accessioned2016-01-08T18:26:29Z
dc.date.available2016-01-08T18:26:29Z
dc.date.issued2013
dc.identifier.urihttp://hdl.handle.net/11693/15901
dc.descriptionAnkara : The Department of Electrical and Electronics Engineering and the Graduate School of Engineering and Science of Bilkent University, 2013.en_US
dc.descriptionThesis (Ph. D.) -- Bilkent University, 2013.en_US
dc.descriptionIncludes bibliographical references leaves 128-152.en_US
dc.description.abstractPlasmonics have attracted a great deal of interest because of their potential to design novel photonics devices which have unique optical properties. This dissertation focuses on novel plasmonic device designs for photonics applications. Electromagnetic properties of metamaterials are characterized and the resonance mechanism of Split Ring Resonator (SRR) structure is investigated. Furthermore, novel SRR-based metamaterial structures are studied. We demonstrated the significant plasmonic enhancement in the transmission characteristics through a sub-wavelength aperture by utilizing SRR resonances. Electrical tuning of plasmonic resonance with varying gate bias by using graphene is observed. Also, electrical properties of graphene is investigated. Fabrication of electrically gated graphene based plasmonic structures are realized. In addition, we utilized metamaterials to design novel photonic devices and we experimentally studied and numerically verified the novel propagation characteristics of graphene-based photonic devices and 3D nanostructures. The proposed structures are designed, simulated, fabricated and measured. The simulations and experimental results are in good agreement and shows significant enhancement of transmission characteristics of plasmonic devices. The dimensions of the structures that are designed in our work is less than 10 times smaller than the incident wavelength (r/λ~0.1) which is a desired property for enhanced light confinement of sensors. Also, the gate tuning of SRR's plasmonic resonance is the first demonstration in the contemporary literature according to our knowledge.en_US
dc.description.statementofresponsibilityŞahin, Leventen_US
dc.format.extentxvi, 152 leaves, graphs, photosen_US
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPlasmonicsen_US
dc.subjectPhotonicsen_US
dc.subjectMetamaterialen_US
dc.subjectSplit Ring Resonator (SRR) Structureen_US
dc.subjectGrapheneen_US
dc.subjectTunable Resonancesen_US
dc.subject3D Direct Writingen_US
dc.subjectEnhanced Transmissionen_US
dc.subjectSub-wavelength Apertureen_US
dc.subject.lccTK7874.84 .S34 2013en_US
dc.subject.lcshPlasmons (Physics)en_US
dc.subject.lcshNanophotonics.en_US
dc.subject.lcshMetamaterials.en_US
dc.subject.lcshPhotonics.en_US
dc.subject.lcshNanoelectronics--Materials.en_US
dc.titleNovel plasmonic devices for nano-photonics applicationsen_US
dc.typeThesisen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.publisherBilkent Universityen_US
dc.description.degreePh.D.en_US


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