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Filtering by: Creator James, J. J. Remove constraint Creator: James, J. J. Committee Member Tate, Janet Remove constraint Committee Member: Tate, Janet Degree Level Bachelor's Remove constraint Degree Level: Bachelor's

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  • High Field Terahertz Spectroscopy of Optically Excited Gallium Arsenide

    Creator:
    Compeau, James
    Abstract:
    High field time-domain terahertz spectroscopy (TDS) is used to determine the time dependent transmission and the time-delay and optical-power dependent conductivity of a wafer of gallium arsenide (GaAs). Gallium arsenide is a direct band-gap semiconductor and has potential as a computer processor component. Analysis of the transmission of terahertz (THz)...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    Arsenide James Compeau Advisor: Dr. Yun-Shik Lee 2015-2016 Abstract: High field time-domain terahertz

  • Organic Semiconductors : Incorporating Xylindein into (Opto)Electronic Devices

    Creator:
    Rath, Jeremy J.
    Abstract:
    This research investigates the electronic properties of a fungi-derived pigment, xylindein as a novel sustainable material for organic electronics. Xylindein molecules were characterized in solution and in film. Absorption spectra and (photo)luminescence spectra were taken at various excitation wavelengths. Xylindein’s molecular properties were computed with the Gaussian 09 software suite....
    Resource Type:
    Undergraduate Thesis
    Full Text:
    (Opto)Electronic Devices Jeremy J. Rath Advised by: Oksana Ostroverkhova Department of Physics Oregon

  • Modeling the Fusion Reaction in an Inertial Electrostatic Confinement Reactor with the Particle-in-Cell Method

    Creator:
    van de Lindt, Jacob
    Abstract:
    Nuclear fusion has the potential to meet the energy needs of our civilization for centuries to come and does not produce harmful greenhouse gasses or produce long-lasting radioactive waste. A fusion reaction can be readily demonstrated in a confinement scheme known as inertial electrostatic confinement (IEC) fusion. In this work,...
    Resource Type:
    Honors College Thesis
    Full Text:
    difference form in three dimensions: 𝜙𝑖−1,𝑗,𝑘 − 2𝜙𝑖,𝑗,𝑘 + 𝜙𝑖+1,𝑗,𝑘 (∆𝑥)2 + 𝜙𝑖,𝑗−1,𝑘

  • Consistent Histories Formulation of the Double-Slit Experiment

    Creator:
    Bauml, Benjamin N.
    Abstract:
    The standard interpretation of quantum mechanics (known as the Copenhagen interpretation) divides the world into quantum phenomena and classical observers that perform measurements upon the phenomena. This provides a quite functional framework for calculating probabilities of measurement outcomes, but it lacks the generality necessary for such things as retrodiction, and...
    Resource Type:
    Honors College Thesis
    Full Text:
    to closed systems in 1957 [5]. This was extended further by Murray Gell-Man and James Hartle [6, 7

  • Cancer Cell Detection with Mask R-CNN

    Creator:
    Wong, Ryan
    Abstract:
    Instance segmentation, the classification and localization of objects in an image, is a problem in cellular biophysics due to the physiological relevance of cell morphology. Particularly, cancer cells migrate in tissue space by changing their body shape similarly to how humans extend their limbs to swim through water. Monitoring such...
    Resource Type:
    Honors College Thesis
    Full Text:
    its inputs and a bias value yi = fi( n∑ j=1 wijxj + bi), (2.1) One can write Equation 2.1 as yi

  • Design of an Optical Medium for the Simulation of Neutron Transport in Reactor Component Materials

    Creator:
    Konyndyk, David M.
    Abstract:
    The scattering of optical rays by small spherical particles bears a strong resemblance to the diffusion of fission neutrons in solid materials. This work explores the feasibility of exploiting similarities between these two systems for the purposes of reactor component analysis, education, and outreach. After a brief overview of reactor-environment...
    Resource Type:
    Undergraduate Thesis

  • Spectral Analysis of Upper Ocean Surface Wave Structure using χSOLO Floats in the Bay of Bengal

    Creator:
    Ball, Matthew S.
    Abstract:
    Surface waves play a vital role in air-sea interactions, and being able to easily measure them in-situ validates and improves predictive models. Here, we diagnose surface wave properties in the Bay of Bengal using modified vertical SOLO II profiling floats, which are regularly used as part of the Argo ocean...
    Resource Type:
    Honors College Thesis
    Full Text:
    /Surface_waves/. [2] R. G. Barry and R. J. Chorley. The asian monsoon. In Atmosphere, Weather & Climate, pages

  • Off-Axis Gamma Ray Burst Contribution to the Diffuse Gamma Ray Background in the 100-600 keV Range

    Creator:
    Hodges, Isaac
    Abstract:
    Gamma ray bursts (GRBs) are short, intense pulses of gamma rays that emit radiation in a narrow beam. Unless the beam is oriented towards the observer, it is often difficult to resolve the bursts against the diffuse gamma ray background (DGRB). The DGRB is a measured source of gamma rays...
    Resource Type:
    Honors College Thesis
    Full Text:
    distributed between 0 and the jet opening angle θj in the altitudinal direction. In the altitudinal direction

  • The contact value approximation to the pair distribution function for an inhomogeneous hard sphere fluid

    Creator:
    Lurie-Gregg, Paho
    Abstract:
    We construct the contact value approximation (CVA) for the pair distribution function, g(²)(r₁, r₂), for an inhomogeneous hard sphere fluid. The CVA is an average of two radial distribution functions, which each take as input the distance between the particles, |r₂ −r₁|, and the average value of the radial distribution...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    them to computed efficiently, and so it is suitable for use in density functional theory. [1] G. J

  • Computing Wavefunctions of Silicon Donor Qubits with Density Functional Theory

    Creator:
    Almulla, Yousif Waleed
    Abstract:
    Silicon based quantum computing is an attractive approach to large-scale quantum computation due to the significant success of the modern semiconductor fabrication industry. Despite many advances in silicon quantum computing since its inception in 1998, there remains no software for efficiently designing candidate silicon quantum computing devices. Such a development...
    Resource Type:
    Honors College Thesis
    Full Text:
    neighboring P dopants via a "J-gate". The J-gate carries a variable electrostatic po- tential that controls