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Applications of Embedded Metamaterial-Based Electromagnetic-Bandgap Structures for Dual-Band Devices and Compact Tunable Bandstop Filtering
DownloadSpring 2020
While dual-band devices and filters are used for different applications, they each rely on a resonance mechanism. At high frequencies, where discrete lumped elements becomes unreliable, these resonances are introduced through electrical long transmission line (TL) segments. Metamaterials (MTMs),...
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Electron Energy Loss Spectroscopy for Probing Nanophotonic Excitations at High Energy and Momentum
DownloadSpring 2019
Strong nanoscale light-matter interaction is often accompanied by ultra-confined photonic modes and large momentum polaritons existing far beyond the light cone. A direct probe of such phenomena is difficult due to the momentum mismatch of these modes with free space light however, fast electron...
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Fall 2019
This thesis describes materials and strategies developed to replace rigid and noncompliant plastic tube, which causes injuries to the heart at the junction between the tissue and the tube in an ex-vivo heart perfusion device. The research is composed of two main parts. The first part addresses...