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 6 of 6 for “"nano-antennas"”.
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Optical nano-antennas: Fabrication, characterization and applications
As optical counterpart of microwave antennas, optical nano-antennas are important devices for converting propagating radiation into confined/enhanced fields at nanoscale. The recent advances in resonant sub-wavelength optical antennas have now offered researchers a continuum of electromagnetic …
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Nonlinear optical emission and near-field enhancement effects in arrays of gold bowtie nano-antennas
… enhancements from periodic arrays of gold bowtie nano-antennas (BNAs) after illumination by laser light. Specifically, we focus on laser-induced damage, nonlinear optical emission, and a proof-of-concept for utilizing arrays of gold BNAs to enhance the forces in an optical trapping system. From …
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Integrated plasmonic nano-antenna devices
… devices. An example of a plasmonic device is a nano-antenna. Although nano-antennas are applied in biological sensing, imaging and nano-particle manipulations, they are passive devices that must be driven by an external source. As combining plasmonic nano-antennas with micro-lasers is the main …
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Photonic Metasurfaces for Spatiotemporal and Ultrafast Light Control
… of photonic metasurfaces - planar arrays of nano-antennas - has enabled a new paradigm of light control through wave-front engineering. Space-gradient metasurfaces induce spatially varying phase and/or polarization to propagating light. As a consequence, photons propagating through …
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Electron beam lithography for nano-antenna fabrication
… Beam Lithography (EBL) for fabrication of nano-antennas and then parameterized EBL variables to improve patterning. I overcame difficulties in some steps of this method to make the process easier and faster. In this experiment I analyzed the relationship between the variation of pattern …
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Free-electron-driven nanoscale light sources: from Hertzian antennas to metamaterials
… reports on the development of new types of nanoscale optical light sources driven by free-electrons and on the investigation of the underpinning physical phenomena. It is focused on three types of nanoscale light sources with increasing degree of complexity: a nanoscale antenna, an …