Browsing Physics and Astronomy by Title
Now showing items 292-311 of 766
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Imaging Molecular Structures with Femtosecond Laser Pulses: Experimental Apparatus Development and Computational Geometry Reconstruction
(University of Waterloo, 2024-01-15)A joint facility with the University of Waterloo and the Advanced Laser Light Source has been constructed, in order to explore the behavior of ions and electrons during ultrafast molecular dynamics. The sophisticated ... -
Impact of contact lens wear on epithelial alterations in keratoconus
(Elsevier, 2021-03)Purpose The purpose of this study was to characterize the central epithelial thickness (CET) of penetrating keratoplasty corneal specimens obtained from patients with keratoconus (KC) and correlate the histological patterns ... -
Impact of Geometric Uncertainties on Dose Calculations for Intensity Modulated Radiation Therapy of Prostate Cancer
(University of Waterloo, 2008-01-29)IMRT uses non-uniform beam intensities within a radiation field to provide patient-specific dose shaping, resulting in a dose distribution that conforms tightly to the planning target volume (PTV). Unavoidable geometric ... -
Implementation of a Universal Fine-Structure Splitting Eraser for Quantum Dots
(University of Waterloo, 2024-01-04)Entangled photons are an important resource for different applications in quantum computation, quantum information, and quantum communication. Sources based on semiconductor quantum dots have successfully obtained on-demand, ... -
Implementations and applications of Renyi entanglement in Monte Carlo simulations of spin models
(University of Waterloo, 2013-09-27)Although entanglement is a well studied property in the context of quantum systems, the ability to measure it in Monte Carlo methods is relatively new. Through measures of the Renyi entanglement entropy and mutual information ... -
Implementing quantum gates and channels using linear optics
(University of Waterloo, 2012-09-28)This thesis deals with the implementation of quantum channels using linear optics. We begin with overviews of some important concepts in both quantum information and quantum optics. First, we discuss the quantum bit and ... -
Improved convergence in block copolymer self-consistent field theory by Anderson mixing
(American Institute of Physics, 2004)A modification to real space polymeric self-consistent field theory algorithms that greatly improves the convergence properties is presented. The method is based on Anderson mixing (D. G. Anderson, J. Assoc. Comput. Mach. ... -
Improved Keyrates for Quantum Key Distribution from two-way Classical Communication
(University of Waterloo, 2022-09-22)Quantum Key Distribution (QKD) promises information-theoretic security of secret keys. An important metric for QKD protocols is the asymptotic keyrate. We propose and analyze several new classical processing protocols for ... -
Improvements to detection efficiency and measurement accuracy in Coulomb Explosion Imaging experiments
(University of Waterloo, 2011-10-04)An algorithm for extracting event information from a Coulomb Explosion Imaging (CEI) position sensitive detector (PSD) is developed and compared with previously employed schemes. The PSD is calibrated using a newly designed ... -
In Situ Measurements of Acoustic Properties of Surfaces
(University of Waterloo, 2009-09-03)The primary goal of this work is to measure the acoustic properties of a surface in situ. This generally involves sound pressure measurements and a calculation of the acoustic reflection factor of a surface, which may then ... -
In Vitro NMR Study of Magnetization Exchange at Low Field and Proteoglycan-Depletion at High Field in Articular Cartilage
(University of Waterloo, 2016-06-30)Magnetization exchange between different spin reservoirs, or spin groups, in cartilage tissue is an important aspect of the use of Magnetic Resonance Imaging (MRI) in the early detection of osteoarthritis (OA). A low field ... -
In Vitro Studies of a New Radiosensitizer for Radiotherapy of Breast Cancer
(University of Waterloo, 2015-08-27)Breast cancer is the most commonly diagnosed cancer among women and is the leading cause of cancer death in both developing and developed areas. Triple-negative breast cancer, one of the subtypes of breast cancer, is ... -
In vitro Studies of Improvement in Treatment Efficiency of Photodynamic Therapy of Cancers through Near-Infrared/Bioluminescent Activation
(University of Waterloo, 2014-05-22)Cancer is a leading cause of death that affects millions of people across the globe each year. Photodynamic therapy (PDT) is a relatively new treatment approach for cancer in which anticancer drugs are activated by light ... -
In vitro test of a potential hypoxic radiosensitizer
(University of Waterloo, 2016-09-28)Oxygen has long been known as a potent radiosensitizer that can enhance the cell killing effects in aerobic cells, while pruned vasculatures and lack of oxygen in the microenvironment of tumor can cause resistance to ... -
In vivo Imaging of Light Induced Intrinsic Optical Signals in the Chicken Retina with a Combined Ultra-High Resolution Optical Coherence Tomography and Electroretinography System
(University of Waterloo, 2013-01-15)The main objective of this thesis is to investigate the intrinsic optical signals (IOSs) with an ultra-high resolution optical coherence tomography system (UHROCT). In order to study the retinal IOSs evoked by visible ... -
Increased interference fringe visibility from the post-fabrication heat treatment of a perfect crystal silicon neutron interferometer
(AIP Publishing, 2018-02-08)We find that annealing a previously chemically etched interferometer at 800 degrees C dramatically increased the interference fringe visibility from 23% to 90%. The Bragg plane misalignments were also measured before and ... -
Indium Antimonide Plasmonic Nanostructures for Tunable Terahertz Sources
(University of Waterloo, 2022-08-23)In this work, procedures were successfully created and deployed for the development, characterization, and study of indium antimonide nanostructures as well as their terahertz plasmonic response. Using molecular beam ... -
Indium Thin Films in Multilayer Superconducting Quantum Circuits
(University of Waterloo, 2018-01-03)The superconducting quantum computer is an implementation of the quantum computer and a current leader the field in terms of performance and potential for scalability to large systems. Its two main components are the ... -
Information Flow In Black Hole Equilibration
(University of Waterloo, 2021-08-11)We study black hole evaporation and equilibration in the doubly holographic AEM4Z model, which consists of a double sided black hole in JT gravity with holographic matter. At t=0, the right side of the black hole is coupled ... -
Initialization and characterization of open quantum systems
(University of Waterloo, 2015-08-21)In this thesis we address three topics of open quantum systems theory. The first concerns the operational characterization of an open quantum system. We develop a graphical calculus for open quantum systems and use it to ...