Search results | J. Murrey Atkins Library

Title: A Detailed Description of Keldysh's Model of Photoionization
Author: Darden, Kenan
Date Created: 2023
Subjects--Topical: Physics, Optics, Quantum theory
Description: Leonid Keldysh’s 1965 paper "Ionization in the Field of a Strong Electromagnetic Wave" contains useful and simple-to-implement equations predicting the rate of photoionization in both atomic gasses and general crystalline solids. Crucially, his re...

Title: A path dependent quantum approximate optimization algorithm optimized by pairwise correlation of angles
Author: Daniel, Christopher
Date Created: 2021
Subjects--Topical: Physics
Description: Given the current promise of quantum computing to increase the efficiency of optimization algorithms, it is important to utilize these quantum algorithms for useful applications. The quantum approximate optimization algorithm was recently develope...

Title: An Evaluation of Teaching Methods in the Introductory Physics Classroom
Author: Savage, Lauren
Date Created: 2015
Subjects--Topical: Education, Physics, Educational evaluation
Description: The introductory physics mechanics course at the University of North Carolina at Charlotte has a history of relatively high DFW rates. In 2011, the course was redesigned from the traditional lecture format to the inverted classroom format (flipped...

Title: Analysis of a Low Enriched Uranium Centrifugal Gas Core Reactor
Author: Leer, Darrin
Date Created: 2020
Subjects--Topical: Fluid mechanics, Physics, Radiation, Nuclear physics
Description: With the new NASA directive of returning to the Moon in 2024 as a stepping stone to missions to Mars and beyond, there is a renewed interest in developing nuclear thermal rockets (NTR) to reduce trip times. This thesis will focus on the analysis o...

Title: Bohmian Trajectories of Interacting Particles Trapped in a Two-dimensional Harmonic Well
Author: Keithly, Gregory
Date Created: 2021
Subjects--Topical: Physics
Description: Bohmian mechanics is an alternate formalism of quantum mechanics that posits a particle is always existent, and furthermore there is a separate entity describing a wave-like disturbance in space and time, governed by the Schrodinger equation, that...

Title: Computational investigations on the aerodynamics of a generic car model in proximity to a side wall
Author: Mallapragada, Srivatsa
Date Created: 2017
Subjects--Topical: Mechanical engineering, Fluid mechanics, Physics
Description: A moving road vehicle is subjected to many fluid interferences caused by a number of external agents apart from the vehicle itself. Vehicles moving in proximity to a side wall is an interesting aspect that has been little investigated in the liter...

Title: Controlled coherence plasmonic light sources
Author: Gbur, Greg, Smith, Matt
Date Created: 2021
Subjects--Topical: Physics, Optics
Description: Through a computational model, we study the coherence converting capabilities of an array of holes in a surface plasmon-supporting metal plate, with an eye towards the creation of controlled coherence plasmonic light sources. We evaluate how the a...

Title: Cycle of phase, coherence and polarization singularities in Young's three-pinhole experiment
Author: Gbur, Greg, Pang, Xiaoyan, Visser, Taco D.
Date Created: 2015
Subjects--Topical: Physics, Optics
Description: It is now well-established that a variety of singularities can be characterized and observed in optical wavefields. It is also known that these phase singularities, polarization singularities and coherence singularities are physically related, but...

Title: Discrete Element Simulations of Powder Spreading in Additive Manufacturing
Author: Amrapurkar, Parth
Date Created: 2020
Subjects--Topical: Mechanical engineering, Engineering, Physics
Description: Powder spreading plays a critical role in the quality of parts produced with selective laser sintering (SLS). Some of the important parameters that influence the quality of the powder bed are the powder particle size and distribution, blade speed,...

Title: Dynamic aerosol and dynamic air-water interface curvature effects on a 2-Gbit/s free-space optical link using orbital-angular-momentum multiplexing
Author: Gbur, Greg, Song, Haoqian, Zhang, Runzhou, Hu, Nanzhe
Date Created: 2022
Subjects--Topical: Physics, Optics
Description: When an orbital-angular-momentum (OAM) beam propagates through the dynamic air-water interface, the aerosol above the water and the water surface curvature could induce various degradations (e.g., wavefront distortion, beam wandering, scattering, ...

Title: Elucidating Dynamic Mechanisms for Extended Spectrum Antibiotic Resistance in Class A Beta-Lactamase through Machine Learning on Molecular Dynamics Simulations
Author: Avery, Christopher
Date Created: 2019
Subjects--Topical: Biophysics, Physics
Description: Beta-lactamase is a protein which is produced in bacteria and is a primary cause of antibiotic resistance to Beta Lactam antibiotics. Beta Lactams are among the most common types of antibiotics (including penicillin) and thus understanding the res...

Title: Experimental Study on Autocorrelated Femtosecond-Laser Ablation of Monolayer Transition Metal Dichalcogenides
Author: Obeid, Joseph
Date Created: 2021
Subjects--Topical: Optics, Physics
Description: In this experimental study, we use a pair of 800 nm 180 fs ultrafast laser pulses to explore time-resolved enhanced ablation of two monolayer transitional metal dichalcogenides (TMDs). A 2D crystal structure gives monolayer TMDs their unique prope...

Title: Extending Topological Constraint Theory to Glass Networks with Hydrogen Bonding
Author: Bloom, Austin
Date Created: 2023
Subjects--Topical: Physics, Condensed matter
Description: Topological constraint theory has been successful in providing a simple model forthe liquid-glass transition in covalent bond bending networks. However, it is lim- ited to networks where all bonds are quenched and possess equivalent potential well...

Title: Extraordinary optical transmission through multi-layered systems of corrugated metallic thin films
Author: Gbur, Greg, Gan, Choon How
Date Created: 2009
Subjects--Topical: Physics, Optics
Description: Optical transmission through multi-layered systems of corrugated metallic thin films is investigated by rigorous electromagnetic simulations based on an exact Green tensor method. Compared to a single metal slab of equivalent thickness and volume,...

Title: Fractional vortex Hilbert's Hotel
Author: Gbur, Greg
Date Created: 2016
Subjects--Topical: Physics, Optics
Description: We demonstrate how the unusual mathematics of transfinite numbers, in particular, a nearly perfect realization of Hilbert's famous hotel paradox, manifests in the propagation of light through fractional vortex plates. It is shown how a fractional ...

Title: High order plasmonic vortex generation based on spiral nanoslits
Author: Gbur, Greg, Yu, Jiayi, Fang, Jing, Cai, Yangjian
Date Created: 2021
Subjects--Topical: Physics, Optics
Description: Highly localized plasmonic vortices carrying orbital angular momentum are of importance for many applications. Yet, it is a challenge to generating plasmonic vortex with a high topological charge because of no available technique. Here, a novel pl...

Title: High throughput non-parametric probability density estimation via novel multithreaded stitching method
Author: Merino, Zach
Date Created: 2019
Subjects--Topical: Mathematics, Statistics, Physics
Description: A method of univariant probability density function (pdf) estimation is developed for big data applications. The method employs the use of a non-parametric maximum entropy estimator (NMEM) for a data driven multithreaded probability density estima...

Title: Implementation of Focusing Light through Highly Scattering Media via Sequential Algorithm Based Wavefront Shaping
Author: Williams, Desmond
Date Created: 2019
Subjects--Topical: Physics
Description: Propagation of light in communications, medicine, and science is hindered by the phenomenon of optical scattering. Methods to overcome this physical limitation have and continue to be researched. This work attempts to implement the method of wavef...

Title: Implementing and Characterizing a Quantum Divide and Conquer Variational Quantum Algorithm
Author: Gray, Alexander
Date Created: 2022
Subjects--Topical: Physics, Quantum theory
Description: The current landscape of quantum computing devices consists of Noisy Intermediate-Scale Quantum (NISQ) devices, which contain around 100 or less qubits and are not fault-tolerant or error correcting. Due to the physical limitations of these device...

Title: Insights Derived From Studies on the Interaction of Wall Jets With an Elevated Hump Wake
Author: Sehman, Sean
Date Created: 2020
Subjects--Topical: Mechanical engineering, Physics, Fluid mechanics
Description: ABSTRACTSEAN M. SEHMAN. Insights Derived from Studies on the Interaction of Wall Jets with an Elevated Hump Wake (Under the Direction of DR. MESBAH UDDIN) Underneath a travelling road vehicle, a channel flow develops between the road and the under...