Now showing items 11-20 of 50
Ultrafast Coherent Imaging Spectroscopy of Van-der-Waals Materials
(2022)
Transition metal dichalcogenides (TMDs) have received considerable attention in the past decade for their optoelectronic applications in photovoltaics, lasers, and quantum information. In the monolayer limit, these materials ...
Ab Initio Many-Body Theory for Solids Based on the Green's Function Formalism
(2022)
Electronic structure of materials from first principles is essential for one-to-one comparisons between theories and experiments. However, the many-body effects resulting from electron correlation and their interplay with ...
Indirect Searches for Physics Beyond the Standard Model
(2022)
Despite the overwhelming success of the Standard Model of particle physics, there are several outstanding issues, perhaps most notably the lack of a dark matter candidate. In this thesis, we develop novel astrophysical ...
Growth, Characterization and Assembly of Lead Chalcogenide Nanosemiconductors for Ionizing Radiation Sensors
(2022)
The demand for precise and efficient nuclear radiation detection has increased dramatically, particularly in numerous scientific disciplines, as well as homeland security and medical imaging applications. Modern methods ...
Dark Matter and Extensions to the Standard Model
(2022)
The standard model of particle physics is known to be incomplete due to the lack of a dark matter candidate, an explanation for the hierarchy problem, a mechanism for the generation of the baryon asymmetry, and a resolution ...
Higgsino Dark Matter Theory and its Experimental Probes
(2022)
We look at a particularly compelling class of supersymmetric models with thermal dark matter. In particular, we examine models with a split in energy scales from Standard Model particles to the supersymmetric scalar masses. ...
Interactions between Heliospheric and Ionospheric Plasma in Geospace
(2022)
The Sun interacts with the Earth through electromagnetic radiation, gravitationally, and through the solar wind. The solar wind carrying the Sun’s magnetic field interacts with the Earth’s magnetosphere and drives the ...
Time-dependent Nuclear Spin Polarization, Effects of Device Non-uniformity on the Gunn Effect, and Electron Spin Dynamics at High Electric Fields in GaAs
(2022)
Spintronics is the study of the spin-related physical properties and phenomena in solid state materials. The goal of the subject is to take advantage of the spin degree of freedom to store and process information, as ...
Theoretical Examination of Charge Transport Effects in Particle-In-Binder Mercuric Iodide (PIB-HgI2) on X-ray Detector Performance
(2022)
Mammographic breast screening is commonly performed using active matrix flat-panel imagers (AMFPIs). However, AMFPIs suffer from low signal-to-noise ratio at the low x-ray exposures encountered in digital breast tomosynthesis ...
Characterizing Heliospheric and Interstellar Interactions Using Pickup Ion Measurements
(2022)
The Heliosphere, orbiting the galactic center of the Milky Way, is a plasma bubble carved out of the Local Interstellar Medium (LISM) by the Sun's dynamic and magnetic influence. Its relative motion creates a steady inflow ...