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Nearly perfect 90-degree bends and T-splitters are demonstrated in plasmonic nano-coaxial waveguides at the telecommunication wavelength, with bending and splitting efficiencies greater than 97% and 99%, respectively.
We demonstrate propagation, routing round bends and integrated detection of light on a deeply sub-wavelength scale in two-conductor metallic slot waveguides. Light with cross-section ∼ λ2/100 propagates ∼10λ at 850nm in good agreement with simulations.
Plasmonics is an exploding new field of science and technology in which the flow of light can be molded at the nanoscale using metallic nanostructures. This newly found ability is rapidly impacting every facet of optics and photonics and is enabling a myriad of exciting new technologies. Group IV photonics has also seen tremendous recent progress in the development of high performance light sources,...
A novel method to introduce more than 0.6% biaxial tensile strain and achieve a 60meV direct band gap reduction in epitaxially grown germanium is demonstrated. Possible applications include high efficiency germanium lasers on silicon substrates.
We present a plasmonic device that can determine the state of polarization of an incident light beam over a narrow wavelength band. The measurement results show 25 and 1.13 contrast ratio for linear and circular polarizations at 830nm.
A systematic analysis of passive elements for 3D plasmonic slot waveguides is numerically performed. The characteristics and optimization of these components are explored in detail. The elements discussed represent key building blocks that enable efficient routing of light in future photonic nanocircuits and on‐chip optical links.
A combined computational and experimental study optimizing plasmon-enhanced absorption in Si thin film solar cells presented. A model system consisting of a 2-dimensional periodic /aperiodic arrays of Ag nanostructures on a silica coated Si film supported by a silica substrate is used in the simulations. We develop basic design rules for the realization of broadband absorption enhancements for such...
A combined computational and experimental study optimizing plasmon-enhanced absorption in Si thin film solar cells presented. A model system consisting of a 2-dimensional periodic /aperiodic arrays of Ag nanostructures on a silica coated Si film supported by a silica substrate is used in the simulations. We develop basic design rules for the realization of broadband absorption enhancements for such...
We present the analysis and optimization of several basic elements for three-dimensional plasmonic slot waveguides. These elements are key building blocks for efficient routing of light that can be used in on-chip optical links.
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