Search Constraints

Start Over
Filtering by: Alternative title ssim Reference 2004-3 Remove constraint Alternative title ssim: Reference 2004-3 Academic Affiliation Physics Remove constraint Academic Affiliation: Physics License Attribution 4.0 (CC BY 4.0) Remove constraint License: Attribution 4.0 (CC BY 4.0)

Search Results

  • Development of a Brownian Motion Experiment for an Undergraduate Laboratory Course

    Creator:
    Wennstrom, Elena
    Abstract:
    A new class at Oregon State, PH 317: Experimental Physics, is designed to simulate a traditional laboratory research experience for undergraduate students. Several weeks of the class is devoted to Brownian motion experiments. Although this is a common topic for undergraduate lab classes, the experiment still needed some basic exploration...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    suspensions of uniformly manufactured polystyrene spheres, ranging in diameter from 0.51- µm to 3-µm, were

  • Riesz Transforms on a Sphere

    Creator:
    Tyma, Troy
    Abstract:
    Motivated by the Navier-Stokes equations, which are a set of unsolved equations related to fluid motion in R^3, we explored the incompressibility condition and the Neumann boundary problem. After exploring, we noticed that using iterated Riesz transforms of the boundary data could be used to get information about the velocity...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    transforms on the sphere comes from the motion of fluids, which are described by the 3-dimensional

  • Fabrication and optical measurement of flip-chips for noninvasive electrostatic gating of nanomaterials

    Creator:
    Nichols, Dublin MacCray
    Abstract:
    Electrostatic gating of nanomaterials allows researchers to control carrier density and shape potential barriers that confine carriers. Lithographic patterning followed by metal deposition is the standard technique to define electrostatic gates; however, the methods of fabricating these devices often involve harsh processing. For example, taking a material to high temperatures...
    Resource Type:
    Capstone Project
    Full Text:
    ............................................................................................................................ 7 3. Optical interference spectroscopy

  • A Simple Leapfrog Integration Scheme to Find Optimal Interplanetary Trajectories

    Creator:
    Kelley, Scott M.
    Abstract:
    The calculation of interplanetary trajectories is a numeric problem which requires a high degree of precision for the results to be accurate. A computer program was written for this project which uses leapfrog integration combined with Newton’s method of iterative root finding to find ideal interplanetary trajectories. Reasonable initial conditions...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    ................................................................................................... 32 3 Results

  • Spectroscopic Ellipsometry on Thin Films of TiO2: Comparing Cauchy and Cody-Loretnz Models in CompleteEASE

    Creator:
    Kreb, Joseph
    Abstract:
    Spectroscopic ellipsometry (SE) is used to characterize amorphous and crystalline thin films of TiO2. Amorphous precursor films of TiO2 are deposited by radio frequency magnetron sputtering on fused silica and silicon substrates. Annealing the amorphous precursor films induces them to crystallize into either pure or mixed phases of the three...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    phase distribution information from EPMA. Reference [3] is a published paper that calculated the

  • Repair of a Scanning Tunneling Microscope and Retesting for the Formation of Pyramidal Structures Formed on Sputtered Germanium (110)

    Creator:
    Betz, Hazel R.
    Abstract:
    Semiconducting materials are of immense importance due to their presence in almost all modern devices. It is possible that the surface physics of semiconductors could be used to control the nanoscale topography and properties of these materials, ultimately creating new options for device fabrication. This could result in profound implications...
    Resource Type:
    Undergraduate Thesis
    Date Created:
    Full Text:
    ................................................................................................................. 22 3 Manufacturing Scanning Tips

  • Photodimerization of Organic Semiconductors in the Strong Coupling Regime

    Creator:
    Puro, Richard
    Abstract:
    Organic semiconducting materials have emerged in the last few decades as viable alternatives to inorganics in broad applications from field effect transistors to LEDs to solar cells. Organics provide many benefits over inorganics such as flexibility, sustainability, and reduced cost. However, these materials are more susceptible to degradation in the...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    . 3 Acknowledgements I would like to gratefully acknowledge funding provided for this project

  • Fabrication and low-temperature measurement of quantum devices

    Creator:
    Nichols, Dublin M.
    Abstract:
    Since the advent of graphene, research on 2D materials has exploded. Countless experiments have uncovered novel properties that emerge when different layered crystals are cleaved down to only a few atomic layers in thickness. The most popular of these non-graphene 2D materials is MoS2, a semiconductor which has been of...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    ................................................................................................... 3 2 Methods

  • Simulating dynein’s powerstroke using Brownian dynamics

    Creator:
    Capek, Elliott L.
    Abstract:
    Dynein is a motor protein which transports cargo along tracks inside the cell. Like related motor proteins kinesin and myosin, dynein uses cellular energy to take steps with its two foot domains. Unlike kinesin or myosin, dynein’s stepping pattern is highly varied: it can take steps between zero and 60nm...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    need motor transport? . . . . . . . . . . . . . . . . . . . . . 3 1.2.3 What role does dynein play in

  • 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:
    ............................................................................................................................................. 3-4 Motivation

  • Exploiting Diffraction Orders from a Phase Limited SLM to Remove and Model Zernike Aberrations

    Creator:
    Goschie, Aaron J.
    Abstract:
    Using a plastic bottle, we explore the capabilities of a reflective phase-only Spatial Light Modulator (SLM) in removing wavefront aberrations using a Zernike polynomial phase mask, with the modulators phase depth limited to 0.8π radians. Wavefront aberrations, which can be modeled with Zernike polynomials, distort image transmission through various optical...
    Resource Type:
    Undergraduate Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3 Blazed Diffraction Using a Finite Aperture. A 1D simulation of a blazed grating (Appendix A