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Filtering by: Creator Oakleaf, Robert J. Remove constraint Creator: Oakleaf, Robert J. Degree Field Physics Remove constraint Degree Field: Physics Degree Level Bachelor's Remove constraint Degree Level: Bachelor's

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  • Quantifying the Effects of Acoustic Coupling on Advanced LIGO

    Creator:
    Banowetz, Katherine
    Abstract:
    The Laser Gravitational Wave Observatory, or LIGO, is built to observe gravitational waves as they propagate through space. Advanced LIGO is extremely sensitive to movements of the test mass as small as 10⁻²¹ m/√Hz , which allows many signals other than gravitational waves to be detected by the system. Pressure...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    Katherine Banowetz Oregon State University May 17, 2016 Advisor: Dr. Robert Schofield University of Oregon

  • Optical Tweezer Trapping of Colloidal Polystyrene and Silica Microspheres

    Creator:
    Peters, Kyle C.
    Abstract:
    Optical trapping is a tool used throughout a wide variety of disciplines rang- ing from precisely probing and manipulating sub-micron organisms in biol- ogy to analyzing fundamental charge transfer in colloidal physics. This thesis presents research involving optical tweezer force measurements of polystyrene and silica microspheres. In addition, preliminary work...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    Seth Roberts, Ti↵any A Wood, William J Frith, and Paul Bartlett. Direct measure- ment of the e↵ective

  • Optical Modelling of Thin Films: Applying Effective Medium Theory to Mixtures of TiO₂ and SnO₂

    Creator:
    Wulf, Julian J.
    Abstract:
    This study used SCOUT optical modelling software to create models of the reflectance and transmittance spectra generated by mixtures of titanium dioxide (TiO2) and tin oxide (SnO2). These models enabled identification of how altering the ratio of a mixture changes the optical response. By being able to identify how altering...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    that Pritha is going to be making soon. Robert Higdon – Whose class on numerical analysis inspired my

  • Examination of the Impact of One-Dimensional Crustal Structures on Cascadia Subduction Zone Earthquake Locations

    Creator:
    Meyer, McKenzie S.
    Abstract:
    Multiple earthquake events have been recorded off the coast of Oregon, yet their locations have great uncertainty. The largest source of uncertainty is the simple models of the crust that are used to interpret seismic recordings. Because the relationship between earthquake locations and crust are diagnostic of tectonic activity, it...
    Resource Type:
    Honors College Thesis
    Full Text:
    _____________________________________________________________________ Robert Harris, Committee Member, representing Geology and Geophysics

  • Molecular Dynamics on REX-GECO1 Reveal Structural Features Governing Fluorescence

    Creator:
    Rozanov, Nikita
    Abstract:
    Fluorescent proteins have emerged as an essential toolset for bioimaging, creating a demand for engineering proteins with new and improved fluorescent properties. In this thesis, I explore the atomistic structure of REX-GECO1, a newly engineered protein biosensor that has unique optical properties. Since this protein has no available crystal structure,...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    ) + ∑ dihedrals Kφ (1 + cos(nφ− φ0)) + ∑ impropers Kφ (ϕ− ϕ0)2 + ∑ i ∑ j 6=i 4�ij [( σij rij )12 − ( σij

  • The Geometry of the Penrose Diagram for Minkowski Spacetime

    Creator:
    Siebersma, Maxwell
    Abstract:
    Culture of Writing Award in Mathematics (2022)
    Resource Type:
    Technical Report
    Full Text:
    . The metric is often written in the form of a line element, which takes the form ds2 = 3∑ i=0 3∑ j=0

  • Fungal Photonics

    Creator:
    Spafford, Jasper
    Abstract:
    The spalting fungus Scytalidium cuboideum secretes a red pigment that produces naphthoquinonic crystals that are a photonic material candidate. The molecule can pack together in different configurations resulting in amazingly different optical properties. I developed a procedure (slowly evaporating the solvent) to preferentially grow two of these configurations, which have...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    wood-staining fungal pigments on fabrics: A new potential for textile dyes. J. Text. Appar. Technol

  • Estimating basal glacier conditions using internal layer slopes

    Creator:
    Carroll, Georgia
    Abstract:
    Ice-penetrating radar produces detailed images of the internal ice layers in a glacier. Because the layers form from each year's snowfall, the curving of the internal layers is a record of the climate conditions that the glacier experienced as it flowed throughout the millennia. The Hiawatha Glacier lies on top...
    Resource Type:
    Honors College Thesis
    Full Text:
    Research Letters, 13, 2018. doi: 10.1088/1748-9326/ aac2f0. [2] Giovanni Picardi, Jeffrey J. Plaut

  • Broad Histogram Algorithm Comparison for the Square Well Fluid

    Creator:
    Simpson, Tanner T.
    Abstract:
    Thermodynamic properties of systems are often investigated computationally. Traditionally, thermal physics simulations are limited by their very small energy ranges and slow convergence. Broad histogram algorithms are a class of Monte Carlo algorithms that can explore an entire energy (and temperature) range in one thermal physics simulation: potentially saving months...
    Resource Type:
    Honors College Thesis
    Full Text:
    atom (i and j): E = ∑ i<j Vsw(ri − rj) (2) Throughout this paper (and in simulation) the kinetic

  • Calculating characteristic timescales for environmental decoherence in the presence of thermal gravitons

    Creator:
    Nelson, Hunter
    Abstract:
    Different models show the effects of environmental decoherence on a quantum system due to various environments of interest. One important quantity within these models is the decoherence time, which tells us how quickly environments wash away the coherence of local measurements. We can describe this effect as the quantum system...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    operator ρ = ∑ i,j c∗jci |ψi〉 〈ψj | . (2.1.3) An interesting note to make about 2.1.3 is regarding the i