Year: 2024, 2024
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Fisher, Kyle S., Thesis advisor (ths): Vreugdenhil, Andrew, Degree committee member (dgc): Slepkov, Aaron, Degree committee member (dgc): Gaspari, Franco, Degree committee member (dgc): Ponnurangam, Sathish, Degree granting institution (dgg): Trent University Abstract: <p>This thesis describes the preparation, optimization, functionalization, and characterization of activated carbon materials sourced from a petroleum coke feedstock for the tailored removal of heavy metal species in contaminated waters. The goal of this work is to develop an understanding of the mechanisms that drive adsorption of heavy metals onto activated carbon surfaces. By determining… more
Year: 2023, 2023
Member of: Trent University Graduate Thesis Collection
Abstract: <p>In this work, a deep learning approach proposed by Valensise et al. [3] for extracting Raman resonant spectra from measured broadband CARS spectra was explored to see how effective it is at removing NRB from our experimentally measured "spectral-focusing"-based approach to CARS. A large dataset of realistic simulated CARS spectra was used to train a model capable of performing… more
Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Porquez, Jeremy, Thesis advisor (ths): Slepkov, Aaron D, Degree committee member (dgc): Wortis, Rachel, Degree committee member (dgc): Gaspari, Franco, Degree committee member (dgc): Côté, Daniel, Degree granting institution (dgg): Trent University Abstract: <p>I have developed and improved a coherent anti-Stokes Raman scattering (CARS) microscope based on the spectral focusing (SF) technique. The CARS microscope uses an 800 nm oscillator and a photonic crystal fibre module to generate the supercontinuum Stokes. The photonic crystal fibre was originally designed to generate light beyond 945 nm which is useful for CARS microscopy in the CH/OH… more
Year: 2019, 2019
Member of: Trent University Graduate Thesis Collection
Abstract: <p>We build a theoretical model for exploring the electronic properties of the two-dimensional (2D) electron gas that forms at the interface between insulating SrTiO3 (STO) and a number of perovskite materials including LaTiO3, LaAlO3, and GdTiO3. The model treats conduction electrons within a tight-binding approximation, and the dielectric polarization via a Landau-Devonshire free energy… more
Year: 2014, 2014
Member of: Trent University Graduate Thesis Collection
Abstract: <p>Experiments have observed a two-dimensional electron gas at the interface of two insulating oxides: strontium titanate (SrTiO<sub>3</sub>) and lanthanum aluminate (LaAlO<sub>3</sub>). These interfaces exhibit metallic, superconducting, and magnetic behaviours, which are strongly affected by impurities. Motivated by experiments, we introduce a simple model in which… more
Year: 2014, 2014
Member of: Trent University Graduate Thesis Collection
Name(s): Creator (cre): Ugray, Lisa Madeleine, Thesis advisor (ths): Shiell, Ralph C, Degree committee member (dgc): Shiell, Ralph C, Degree committee member (dgc): Slepkov, Aaron, Degree committee member (dgc): Gaspari, Franco, Degree granting institution (dgg): Trent University Abstract: <p>This thesis is divided into two parts, each of which supports constructing and using a lithium magneto-optical trap for cold collision studies:</p><p>Part I</p><p>One outgoing channel of interest from cold collisions is the production of ion pairs. We describe an effective method for calculating bound-to-continuum cross-sections for charged binary systems by… more