Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Plasmonic coupling"”.
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Epitaxial growth and plasmonic coupling in topological insulator heterostructures
… confirmation of such multiple surface states coupling. It is shown that two Bi2Se3 TI layer separated by BI layer can be electrostatically coupled and generate plasmon mode at higher frequency than the single layer Bi2Se3 at same wavevector, and that the coupling strength is a function of the …
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Photonic-plasmonic coupling enhanced fluorescence for digital-resolution protein detection
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Ordering of Nanoparticles by Wrinkle-Assisted Self-Assembly : Controlling Plasmonic Coupling Effects
… spectral features because of inter-nanoparticle coupling. These effects are often the result of changes in the so-called surface Plasmon resonance, the frequency at which conduction electrons oscillate in response to the alternating electric field. Provided nanoparticles form ordered arrays, they …
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Design and characterization of plasmonic nanoprobes and interparticle interactions for surface enhanced raman scattering and biomolecular detection
… applications is the exploitation of the unique plasmonic properties of certain metal nanoparticles. A key challenge is the understanding of effective harnessing of the plasmonic coupling of the nanoparticles upon interacting with the targeted biomolecular species. This thesis work focuses on …
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Memorizing chromic response to pressure
… in its one dimensional array causes plasmonic coupling between the nanoparticles, which when disrupted creates a plasmonic shift in its assembly. Such a film, when casted on a polymer with a known elastic limit, causes deformation by an application of stress. This forces the film to …
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Synthesis and Applications of Novel Responsive Materials
… sensitive to changes in pH, was coupled with a plasmonic crystal (PC). This hydrogel contained a small amount of acrylic acid which, when polymerized into the hydrogel, caused an expansion of the hydrogel due to electrostatic repulsion when the pH of the solution was raised above the pKa of the …
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Development of smartphone hyphenated colorimetric, plasmonic and electrochemical biosensors for food contaminant detection
… In chapter four an immunoassay based on plasmonic coupling of nanoparticles for the detection of domoic acid was conducted. In chapter five and six the potential of smartphone based image analyses of colorimetric assays was thoroughly assessed. In chapter seven an electrochemical …
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Biasing Plasmonic Nanocavities
… nanoparticles deposited on the sample, whose plasmonic coupling with the bottom electrode is modulated by the actuation mechanism. The second method used to construct nanoscale junctions is more appropriate for molecular junctions, and is based on electrical contacting of individual metallic …
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Mirror-Coupled Nanoantennas with Hexagonal-Boron Nitride Spacers
… in a wide range of optical resonators. Combining plasmonic nanoantennas with such resonators enables the formation of nanoscale optical resonances. The novel nano-optics observed by combining these heterostructures with optically active media is laying the foundations for devices such as …
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Plasmonic interactions in the quantum tunnelling regime
… are producing ever more intricate, reproducible, plasmonic nano-architectures with gaps and junctions approaching the single nanometre and atomic scales. Such atomic-sized features promote the intersection of physics, chemistry and biology in plasmonics. Consequently, understanding light-matter …
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Transformations in inorganic nanomaterials: role of defects, surfaces, and size
… level that the nature and strength of plasmonic coupling within the resulting assembly is strongly dependent on the site of attachment of the nanosphere/s and the nanosphere size. In addition to the large, regio-selective polarizability of Au nanoplates, we also uncover a synergy in the …
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Mapping plasmon excitations in gold nanostructures using electron energy loss spectroscopy
In this work we present the plasmonic properties of simulated and fabricated Au nanostructures using an electron beam as a source of excitation. The motivation for the this work comes from the applications of these nanostructures and the need to understand the physics behind them. We introduce the …
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Light Coupling to Plasmonic Nanocavities
… this thesis concerns how light can be coupled to plasmonic nanocavities, increasing its electric field by orders of magnitude. Variations of a popular NanoParticle (NP) on Mirror (NPoM, or patch antenna) structure were used, which localizes visible light in 3 dimensions to an area of contact …