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Microbe-electrode interactions: The chemico-physical environment and electron transfer
(2013-10-14)
This thesis presents studies that examine microbial extracellular electron transfer that an emphasis characterizing how environmental conditions influence electron flux between microbes and a solid-phase electron donor or ...
A Configurable Terasample-per-second Imaging System for Optical SETI
(2013-10-08)
A new instrument for conducting astronomical searches for nanosecond-scale optical pulses has been designed, built, and is now operating at Oak Ridge Observatory in Harvard, MA. The Advanced All-sky Camera, based on the ...
Reducing Power Loss, Cost and Complexity of SoC Power Delivery Using Integrated 3-Level Voltage Regulators
(2013-03-18)
Traditional methods of system-on-chip (SoC) power management based on dynamic voltage and frequency scaling (DVFS) is limited by 1) cores/IP blocks sharing a voltage domain provided by off-chip voltage regulators (VR) and ...
Optical Manipulation and Sensing with Silicon Photonics
(2013-03-15)
Optical trapping enables the non-contact manipulation of micro and nanoparticles with extremely high precision. Recent research on integrated optical trapping using the evanescent fields of photonic devices has opened up ...
Plasmonic Cavities for Enhanced Spotaneous Emission
(2013-09-30)
The modification of spontaneous emission, i.e. the Purcell effect, with optical cavities has been highly studied over the past 20 years as one of the most important goals for cavity quantum electrodynamics (cQED). The ...
Manipulating Light on Wavelength Scale
(2013-09-18)
Light, at the length-scale on the order of its wavelength, does not simply behave as "light ray", but instead diffracts, scatters, and interferes with itself, as governed by Maxwell's equations. A profound understanding ...
Fabrication and Characterization of Single-Crystal Diamond Photonic Cavities
(2013-09-19)
Cavity quantum electrodynamics provide a platform to form a quantum network which connects individual quantum bits (qubits) via photon. Optical cavity, a device which traps photons in a confined volume can enhance the ...
Aqueous Solution Synthesis of ZnO for Application in Optoelectronics
(2013-09-23)
Recently, ZnO has garnered widespread attention in the semiconductor community for its large set of useful properties, which include a wide bandgap and its resulting optical transparency, a large exciton binding energy, a ...
The Convexity of Quadratic Maps and the Controllability of Coupled Systems
(2013-09-16)
A quadratic form on \(\mathbb{R}^n\) is a map of the form \(x \mapsto x^T M x\), where M is a symmetric \(n \times n\) matrix. A quadratic map from \(\mathbb{R}^n\) to \(\mathbb{R}^m\) is a map, all m of whose components ...