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 11 of 11 for “"Plasmonic waveguide"”.
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Plasmonic devices for manipulating light at the nanoscale: slow-light waveguides and compact couplers
In this dissertation, I explore new plasmonic structures and devices for manipulating light at the nanoscale: slow-light waveguides and compact couplers. I first introduce a plasmonic waveguide system, based on a plasmonic analogue of electromagnetically induced transparency (EIT), which supports a …
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Controlling light on the nanoscale: ultrafast plasmonics and phase change functionality
… and modulated along a metal/dielectric waveguide is achieved. The ultrafast optical modulation of plasmons is accomplished by optical excitation of the aluminium plasmonic waveguide using 200 fs optical pulses at wavelengths near the aluminium’s interband absorption resonance (lambda ~ …
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Integrated Photonic Functions Using Optically Anisotropic Materials
… field within photonics research in which waveguides and optical components can be fabricated as an planar, integrated structure. In particular, silicon photonics based on dielectric nanowires have been established as a platform of choice for processing optical signals largely due to their …
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Designing Enhanced Nonlinearity in Plasmonic Devices with Epsilon-Near-Zero Films
… limited compatibility with deeply subwavelength plasmonic confinement. This thesis computationally investigates epsilon-near-zero thin films integrated into plasmonic waveguide architectures as a route toward stronger light–matter interaction in compact nonlinear devices.</p> <p>Two waveguide …
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Numerical Modelling of Plasmonic Waveguides
Plasmonics play an essential role now in the area of compact on chip optical systems; this is due to their unique characteristics and the ability of guiding light below the diffraction limit. Moreover, the integration between optical systems and electronic systems can be realised using those …
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Development of novel bio/nano interfaces for materials science and biomedical applications
… and nanoparticles with greatly enhanced surface plasmonic properties. Multivalent peptide display on MS2 VLPs greatly enhances their affinity for target cells (e.g. hepatocellular carcinoma), providing the specificity necessary to deliver various therapeutic agents, including chemotherapeutic …
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Advanced light manipulation and waveguiding in plasmonic nanostructured optical fibers.
… technologies for optical nanostructures such as plasmonic and metasurfaces allows us to overcome these limitations by tailoring those optical properties for advanced light manipulation and the development of novel optical fiber devices. In this dissertation, I have reported four main projects on …
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Novel waveguides for terahertz quantum cascade lasers
… the beam and tuning the frequency and bandwidth. Waveguide engineering has been a particular area of interest due to the large wavelength of the THz radiation (> 100 μm). This thesis introduces several improvements related to THz QCL waveguide technology. We begin by describing the THz radiation …
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Engineering Application-Specific Plasmonic Nanoparticles: Quantitative Measurements and Precise Characterization
… smallest cross-sectional area of any elongated plasmonic structure that has been reported to do so. By analyzing the output tip signal of propagating plasmons for nanobelts of different lengths, the decay length is measured. Finite Difference Time Domain simulations and polarization measurements …
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Leveraging free carriers effects for infrared photonic structures and devices
… electrical access. The second device is a slot waveguide made with a hybrid doped semi-conductor/metal architecture. Our waveguide takes advantage of the doped semiconductor, which has highly controllable optical response as a designer plasmonic material in the mid-infrared. The local wavelength …