Physics, Engineering Physics and Astronomy, Department of
The Physics, Engineering Physics, and Astronomy is one of Canada's leading teaching and research institutes in Physics, Engineering Physics and Astronomy. Our faculty include high-profile, world-class physicists who work on cutting edge areas of theoretical, computational, applied and experimental physics.
This community includes research outputs produced by faculty and students. Submitting works to QSpace may enable compliance with the Tri-Agency Open Access Policy on Publications.
When you submit your work to QSpace, you retain copyright and grant the Library a non-exclusive license to distribute and preserve. Works are open access unless restricted by the creator.
Collections in this community
Recent Submissions
-
Electronic Transport in the Biopigment Sepia Melanin
(American Chemical Society, 2020-07-05)Eumelanin is the most common form of the pigment melanin in the human body, with diverse functions including photoprotection, antioxidant behavior, metal chelation, and free radical scavenging. Melanin also plays a role ... -
Quasinormal-mode theory and design of elastic Purcell factors, mechanical cavity modes and Fano resonances in optomechanical beams
In optomechanical systems, the radiation forces exerted by photons are exploited to manipulate and measure mechanical motion, finding applications is optics, nanophotonics, mechanics, and gravitational wave detection. To ... -
Characterization of pyrene films for background rejection in liquid argon dark matter experiments
About a hundred years after the first references to dark matter, the mystery around the nature of that elusive type of matter has still not been solved. Direct detection dark matter experiments are getting more and more ... -
Rocks and Stars, Earth and Mars: a Deluge of Distinct Dark Sector Detectors
The nature of dark matter remains among the most confounding conundra in modern physics. This thesis studies the potential consequences of the existence of relatively high-mass, strongly-interacting dark matter. In particular, ... -
Theory and Computation of Intrinsic Propagation Losses and Disorder-Induced Modes in Topological Photonic Crystal Waveguides Using Mode Expansion Techniques
Photonic crystal (PC) slabs are promising optical systems for manipulating the flow of light on the nanoscale as a result of their combined in-plane lattice structure and slab waveguide properties. By introducing a line ... -
Measurements of a DC Gas Discharge
To investigate properties of gas discharges and to evaluate the design and implementation of a Langmuir probe diagnostic, an array of several probes was designed and inserted into an intermediate pressure direct-current ... -
Valley polarization in biased bilayer graphene using circularly-polarized light
There exist two inequivalent local minima in graphene's electronic band structure known as valleys or Dirac points which are labelled K and K'. The valley index is binary and the concept of using this two-state system to ... -
Neutron Calibration System for the Cryogenic Underground Test Facility (CUTE)
The mystery of Dark Matter in our universe has puzzled scientists over the past century, and a large number of experimental ventures have been conducted hoping to find an answer. The Weakly Interacting Massive Particle ... -
Paschen’s Law in Different Gases
(2021-05-27)An experiment was performed to measure the Paschen curves of multiple gasses. Paschen curves are generated using Paschen’s equation. A plasma discharge tube was used to induce arcs of plasma in low pressure environments ... -
Dark Matter-Neutrino Scattering in the Galactic Centre with IceCube
While there is evidence for the existence of dark matter, its properties have yet to be discovered. Simultaneously, the nature of high-energy astrophysical neutrinos detected by IceCube remains unresolved. If dark matter ... -
Undergraduate Construction of an Optical Tweezer Apparatus with a Study of Brownian Motion on Micron-Sized Polystyrene spheres
(2021-05-26)In this experiment, an apparatus is designed for use with optical trapping of polystyrene spheres with diameters ranging from 1-5 µm. The goal of the experiment is to first construct a working apparatus that is capable ... -
Optical Trapping: Final Report
(2021-05-26)The Optical Trapping experiment uses the momentum of photons from a laser beam in order to apply a trapping force onto 4.5 µm diameter polystyrene microspheres. When trapped in this way, the spheres behave much like they ... -
Examination of low temperature argon plasma by optical emission spectroscopy and comparison with Paschen’s curve.
(2021-05-11)In this experiment we studied argon plasma at room temperature by varying the voltage and pressure of a plasma chamber for ten different samples. Our experimental measurements aligned with the theoretical optical emission ... -
Experimental speed distribution measurements and NHC self-assembly on Au(111)
In Part 1, I present experimental measurements of the speed distribution in atomic beams produced by physical vapour deposition. These measurements are still needed in the literature, especially in collisionless beams ... -
Temperature’s Effect on the Speed of Light
(2021-05-04)In this experiment, our group investigates the effect of temperature on the speed of light by experimentally measuring the change in the angle of refraction through common glass over a 100C range in temperature while ... -
Capacitance performance of NiO thin films synthesized by direct and pulse potentiostatic methods
(Springer, 2019-07-20)Transition metal oxides have applications into energy storage devices such as electrochemical supercapacitors. We deposited nickel oxide (NiO) thin films using electrodeposition under direct and pulse potentiometry. The ... -
Enhancement of the capacitance properties and the photoelectrochemical performances of P3HT film by incorporation of nickel oxide nanoparticles
(Springer, 2018-11-15)P3HT films were modified by incorporation of different amounts of nickel oxide (NiO). The nickel oxide powder was synthe- sized by chronoamperometry. The composites were further dissolved and deposited by the spin-coating ... -
Photonic crystal based broadband graphene saturable absorber
(OSA Publishing, 2019-10-01)The enhanced saturable absorption (SA) of a one- dimensional (1D) photonic crystal (PC) made from polymers and graphene composites by spin-coating is observed. It shows obvious bandgaps at two wavelengths in transmittance. ... -
Synthesis and properties of alumina-hydroxyapatite composites from natural phosphate for phenol removal from water
(Elsevier, 2019-07-01)Phenol is very abundant in the aquatic environment and therefore requires an effective treatment using porous and low-cost adsorbents. Alumina-hydroxyapatite composites were prepared from natural phosphate ore in the ... -
Development of sulfonate-functionalized hydroxyapatite nanoparticles for cadmium removal from aqueous solutions
(Elsevier, 2019-05-01)Sulfonate-functionalized hydroxyapatite was successfully synthesized by organo- functionalization using natural phosphate and Benzenedisulfonate molecules. The modified apatites were characterized using multiple techniques, ...
RSS 1.0