Coupled surface plasmon structures and applications

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buir.advisorBayındır, Mehmet
dc.contributor.authorGürel, Kemal
dc.date.accessioned2016-01-08T18:11:50Z
dc.date.available2016-01-08T18:11:50Z
dc.date.issued2009
dc.departmentGraduate Program in Materials Science and Nanotechnologyen_US
dc.descriptionAnkara : The Graduate Program of Materials Science and Nanotechnology and the Institute of Engineering and Sciences of Bilkent University, 2009.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 2009.en_US
dc.descriptionIncludes bibliographical references leaves 55-58.en_US
dc.description.abstractSurface plasmons have attracted great interest during past decades due to their unique physical properties. In this thesis, we study grating-coupled surface plasmons for sensing and filtering applications. We first present simple physical and chemical procedures that allow tuning and modification of the topography of gratings present in optical storage discs into geometries optimal for grating coupled plasmon resonance excitation. After proper metal coating, the tuned surfaces exhibit sharp plasmon resonances that can be excited at wavelengths ranging from 260 nm to over 2.7 µm with relatively high quality factors. As an immediate exemplary application, use of such optimized gratings in aqueous medium for refractive index measurement is demonstrated. We also report another plasmonic component based on a pair of surfaces displaying grating coupled plasmon enhanced transmission. We observe high quality factor transmission peaks as high as 100 through our plasmonic filter based on gratings obtained directly from optical storage disks. Wavelength and polarization dependent transmission is also demonstrated in the visible and infrared portions of the spectrum. The resonance wavelength of this filter can be tuned by simply changing the angle of incidence. Numerical calculations agree well with measurements. Our work can open up directions toward disposable optical components such as filters and polarizers. Morever, we investigate plasmonic force between two coupled metallic layers. We observe the mode splitting due to coupling between plasmonic surfaces by using finite difference time domain simulations.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityGürel, Kemalen_US
dc.format.extentxii, 58 leaves, illustrationsen_US
dc.identifier.urihttp://hdl.handle.net/11693/14983
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSurface Plasmonsen_US
dc.subjectPlasmonic Forceen_US
dc.subjectMode Splittingen_US
dc.subjectMIM Waveguideen_US
dc.subjectPrism Couplingen_US
dc.subjectFilteren_US
dc.subjectOptical Disksen_US
dc.subjectGrating Couplingen_US
dc.subject.lccQC176.8.P55 G87 2009en_US
dc.subject.lcshPlasmons (Physics)en_US
dc.subject.lcshSurface plasmon resonance.en_US
dc.subject.lcshSurfaces (Physics)en_US
dc.titleCoupled surface plasmon structures and applicationsen_US
dc.typeThesisen_US
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Graduate Program in Materials Science and Nanotechnology - Master's degree