Symmetry breaking in plasmonic nanostructures

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dc.contributor.advisorHalas, Naomi J.
dc.creatorKnight, Mark W.
dc.date.accessioned2018-12-03T18:31:19Z
dc.date.available2018-12-03T18:31:19Z
dc.date.issued2008
dc.description.abstractThe plasmonic properties of metallodielectric nanostructures exhibit a highly sensitive dependence on geometry due to the interaction between primitive plasmon modes associated with the surfaces of the nanoparticle. Breaking symmetry increases the interactions between plasmon modes giving rise to modified, and altogether new, plasmonic features. This thesis examines the effects of breaking symmetry on three variants of a core-shell nanoparticle and a nanoparticle-nanowire plasmonic waveguide. For asymmetric core-shell nanoparticles, the far field absorption and scattering properties and the near field enhancements depend strongly on the degree of asymmetry. For nanowires, adding a vicinal nanoparticle breaks cylindrical symmetry and permits polarization-dependent coupling of visible light to propagating wire plasmons. These results offer a potential strategy for tailoring the near and far field properties of plasmonic nanoparticle systems for specific applications including high performance surface-enhanced spectroscopy, bioimaging, nanoparticle-based therapeutics, and subwavelength nanoantennae for coupling into extreme subwavelength waveguides.
dc.format.extent61 pp
dc.identifier.callnoTHESIS E.E. 2009 KNIGHT
dc.identifier.citationKnight, Mark W.. "Symmetry breaking in plasmonic nanostructures." (2008) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103547">https://hdl.handle.net/1911/103547</a>.
dc.identifier.digital304508156
dc.identifier.urihttps://hdl.handle.net/1911/103547
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectElectromagnetics
dc.subjectOptics
dc.subjectPure sciences
dc.titleSymmetry breaking in plasmonic nanostructures
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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