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 10 of 10 for “"localized surface plasmon resonances"”.
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Exploiting plasmons to sense interfacial changes at the nanoscale
… materials development. As a class of materials, plasmonic nanomaterials are a promising approach for probing chemistry at interfaces. When excited with an incident electric field like light, plasmonic nanomaterials exhibit localized surface plasmon resonances (LSPR). The LSPR scattering spectrum …
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Tailoring Optical and Plasmon Resonances in Core-Shell and Core-Multishell Nanowires
… structures which exhibit strong optical (Mie) resonances in the visible range. In addition to such optical resonances, the localized surface plasmon resonances (LSPR) in metal and semiconductor (or dielectric) based core-shell (CS) and core-multishell (CMS) NWs can be tailored to achieve novel …
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Complex Plasmonic Nanostructures: Symmetry Breaking and Coupled Systems
… of their conduction band electrons called localized surface plasmon resonances. Plasmons couple efficiently to light and have enabled a new class of technology for the manipulation of light at the nanoscale. Nanostructures that support plasmon resonances have the potential for a wide range …
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Tip-based nanomanufacturing and metrology of heterogeneous nanostructures
… deposits polymer nanostructures onto a surface, where the cantilever heating controls the deposition rate. The nanometer-scale polymer transport between the tip and surface is investigated by controlling tip temperature and substrate temperature over the range 100 – 260 °C, and for …
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Probing light-matter interactions with differential polarizations: From chiral nanostructures to molecular sensing
… by asymmetry of life, this thesis utilizes plasmonic nanostructures and dark-field scattering to elucidate how differentially polarized light distinguishes between left- and right-handed chiral architectures, and how this discrimination can be utilized for molecular sensing. Leveraging the …
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Nanoscale light-matter interaction of ultrathin materials
… for three prototypical materials: 1. 2D plasmonic crystals of metal nanoparticles, whose confined intraband dynamics support localized surface‐plasmon resonances and spectrally sharp, spatially extended lattice modes. 2. Landau‐quantized 2D electron gases in GaAs quantum wells under a few …
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Sensing Applications of Silver and Gold Nanoparticles
… because of their distinguished optical property"localized surface plasmon resonances (LSPRs) that exhibit low loss, are ideal materials to fabricate these nanoscale plasmonic particles or structures. This work addresses the synthesis, characterization, and sensing applications of Au and Ag …
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Surface plasmon resonance study of the purple gold (AuAl₂) intermetallic, pH-responsive fluorescence gold nanoparticles, and gold nanosphere assembly
… also known as purple gold, originates from surface plasmons (SPs). This contrasts to a previous assumption that this color is due to an interband absorption transition. The existence of SPs was demonstrated by launching them in thin AuAl2 films in the Kretschmann configuration, which enables …
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Vibrational Imaging at the Nanoscale: Surpassing the Diffraction Limit Using Tip-Enhanced Raman Spectroscopy
… understanding of the chemical composition of surfaces, interfaces or nanoscale structure with a high spatial resolution is an important goal in nanoscience and nanotechnology. Structural information can be collected using a variety of high spatial resolution techniques such as atomic force …
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Interactions of Organic Fluorophores with Plasmonic Surface Lattice Resonances
… and reflective, the more so when a metal surface is flat, polished, and free from oxidation and surface fouling. However, some metals reflect visible light, in the 380 nm to 740 nm range of wavelengths, much more strongly than others. In particular, some metals reflect wavelengths in …