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Showing 1 to 14 of 14 for “"plasmonic waveguides"”.
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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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Metal-insulator-insulator-metal plasmonic waveguides and devices
Metal-insulator-metal (MIM) plasmonic waveguides have been proposed for highly integrated subwavelength structures. In this work, waveguiding and coupling of surface plasmon polaritons (SPPs) within finite planar MIM plasmonic waveguides are examined both theoretically and experimentally. Gain …
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Highly doped semiconductors for plasmonic waveguides and flat-composite gratings
… are investigated as a foundation for plasmonic waveguides and gratings in the mid-infrared. The potential applications of plasmonics to the MIR are reviewed, along with a brief derivation of a mathematical formalism for hybrid plasmonic waveguides which utilize both doped …
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Finite element characterisation of plasmonic waveguides in terahertz and optical frequencies
In recent years plasmonic devices have become an interesting area of research due to the sub-wavelength confinement and propagation of radiation, allowing the design of very compact structures. Compact structures are necessary to make smaller integrated optical circuits. Due to the use of metals, …
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Processes for Forming Plasmonic Waveguides from Self-Assembled Gold Nanoparticle Thin Films
… dimensions of contemporary electronics, optical waveguides will fail to assist significantly due to the fact that standard optical waveguides will have dimensions below the diffraction limit and hence optical waveguiding at such scales will be impractical. In order to circumvent this, recent work …
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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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Implementation of the Finite Difference Time Domain algorithm for the analysis of terahertz waves
… modelling the behaviour of microwave circuits, waveguides, and photonics to simulating terahertz devices and plasmas. In this study the FDTD approach is derived from first principles (finite differences) and explicit equations are shown based on Maxwell's equations. Furthermore, absorbing …
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Numerical Study of Plasmon Resonances in Nanoparticles
… applications as well as nanoparticle-structured plasmonic waveguides of light are numerically investigated. The integral equation based numerical technique presented throughout this dissertation can be instrumental for the design of plasmon resonant nanoparticles and to tailor their optical …
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Scalable direct electrochemical nanopatterning of silver films
… electrodes in chemical sensors, batteries, plasmonic waveguides, structural color generation in sub-wavelength optics and catalysts in micro-reactor surfaces. Silver, of all the elements, possesses the highest electrical conductivity and (as a result) unique interaction with visible light …
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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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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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Solid state electrochemical processes for nanofabrication
… sensors, batteries, fuel-cells, antennae, plasmonic waveguides in sub-wavelength optics and structural color generation. While the demand for making functional metallic nanostructures for the development and commercialization of new technologies is increasing, there is a need for new …
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Solid-state superionic stamping: Patterning 3D metallic micro- and nanostructures for surface enhanced Raman sensing
… sensors, batteries, fuel cells, antennae, plasmonic waveguides in sub-wavelength optics; etc. As the demand for functional metallic nanostructures rises with the advancement and commercialization of new technologies, there is a pressing need for new manufacturing techniques enabling rapid …
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Efficient light emission from bismuth-doped rare earths compounds for Si microphotonics
… main constituents of a photonic circuit, such as waveguides, splitters or multiplexers, detectors, etc. However there is still a lack of integrated infrared light sources that are required to generate logic value 1-0 and to compensate the optical losses in waveguides. In addition recently also the …