Index Catalog // ScholarsArchive@OSU

Characterizing Optical Signatures of TiO₂ Amorphous Precursors

Creator:: Berry, Patrick
Abstract:: TiO₂ typically crystallizes into three polymorphs: brookite, rutile, and anatase. The phase selection problem in TiO₂ is the lack of understanding what conditions cause amorphous TiO₂ to crystallize into one of its three polymorphs during an annealing process. It has been recently shown that phase selection in TiO₂ is highly...
Resource Type:: Undergraduate Thesis

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

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

Travelling Wave Analysis of Nonlinear Maxwell Models with Applications to Nonlinear Optics

Creator:: Langlie, Noah
Abstract:: In 1877 John Kerr described an experiment that demonstrated a quadratic change in refractive index in a plate glass placed in a strong external electric field. This results in a nonlinear relationship between the average electric polarization within the materials and the intensity of the applied electric field. This opened...
Resource Type:: Undergraduate Thesis

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

Detection of exciton polaritons in organic thin film TES-ADT

Creator:: Haas, David P.
Abstract:: Exciton polaritons are quasiparticles composed of a quantum superposition of matter and light states that arises from the coupling of a standing wave photon and an exciton. This research has two primary objectives: to design and fabricate a Fabry-Perot microcavity system in which to produce exciton polaritons; and to show...
Resource Type:: Undergraduate Thesis

Terahertz field enhancement in nanoantennas on gallium arsenide

Creator:: Brequigny, Victor
Abstract:: Terahertz (THz) spectroscopy is a great tool not only to study fundamental physical processes such as many-body Coulomb interaction but also to develop ultrafast electronic devices. More specifically, intense THz fields interacting with semiconductors have exhibited strong nonlinear effect involving extreme carrier dynamics. In this experiment, intense THz radiation was...
Resource Type:: Undergraduate Thesis

Deriving relationships between number of observed short gamma ray bursts and viewing angle

Creator:: Micallef, John T.
Abstract:: Gamma ray bursts are some of the brightest events in the entire observable universe. Since the late 1960’s, thousands of gamma ray bursts have been observed and they have been researched extensively. However, there are still many mysteries which remain unsolved. One such mystery is whether or not the viewing...
Resource Type:: Undergraduate Thesis

Multi-Grand, Multi-Canonical, Flat Histogram, Monte Carlo Simulations for the Square Well Fluid

Creator:: Trotter, Cade W.
Abstract:: Currently multi-canonical, and grand canonical Monte Carlo simulations exist, but do not always give all of the necessary information of the system. When using a 1-D (only changing in one variable) broad histogram Monte Carlo method a user would need to run a range of simulations in order to get...
Resource Type:: Undergraduate Thesis

Anti-Reflective Films: Spectroscopy and Ellipsometry of Porous Films

Creator:: Ramm, Joshua J.
Abstract:: The relationship between the index of refraction and the porosity of a material is that the index decreases with respect to the porosity. This property can be used to change the index of refraction of films which allows control of the reflection of the material. This is important because being...
Resource Type:: Undergraduate Thesis

Understanding change: surface manipulative-activities as a tool for addressing student difficulties in thermodynamics

Creator:: Siegel, Reese R.
Abstract:: Multivariable functions permeate physics, mathematics, and other sciences. Understanding how quantities in multivariable relationships change together – or co-vary – is important for studying physical systems. In this project, we asked junior-level physics majors to describe the covariation of quantities in a multivariable context given a 2D graph. We identified...
Resource Type:: Undergraduate Thesis

Beyond Scattering: Identifying the Boundaries of Light Control with a Genetic Wavefront Optimization Algorithm

Creator:: Weller, Jesse A.
Abstract:: The ability to focus light through strongly scattering materials is opening up exciting new avenues in many fields, such as optics, computer vision, biology, and medicine, which utilize light delivery and imaging techniques. Efficient, high resolution wavefront shaping and optimization methods are crucial to enabling this new capability. In this...
Resource Type:: Undergraduate Thesis

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

Plasmon Induced Transparency in Terahertz Metamaterials

Creator:: Meyers, Joseph
Abstract:: Plasmon induced transparency (PIT) describes a spectral response of coupled plasmonic resonators in that coupling between bright and dark modes leads to a destructive interference resulting in a narrow transparency window. This process has many applications in material characterization and advanced optical devices such as slow light devices or ultrafast...
Resource Type:: Undergraduate Thesis

Drunken Walking: A Novel Brownian Dynamics Simulation for the Mechanochemical Cycle of the Dynein Motor Protein

Creator:: Waczak, John L.
Abstract:: The dynein molecule is a peculiar motor protein recognized for its unique stepping behavior. Sometimes it steps forwards. Other times it steps backwards. It has even been observed to occasionally shuffle by beginning a step with the same domain many times in row. These motions make dynein an interesting object...
Resource Type:: Undergraduate Thesis

Teaching Gravitational Potential Energy: Student Interaction with Surface Manipulatives

Creator:: Kimbrough, Abigail E.
Abstract:: Past studies have shown that students struggle with main concepts of potential energy, such as reading graphs, understanding that potential energy can be negative, and, most pertinent to this research project, connecting potential energy to force. I designed an activity to help introductory physics students address these struggles. The activity...
Resource Type:: Undergraduate Thesis

Chiral Topological Defects in Nematic Liquid Crystals and Classical Field Theories

Creator:: Douglas, Brennan
Abstract:: A great variety of topologically protected defects exist in ordinary and exotic states of matter. Some of them are promising candidates for technological applications such as magnetic memory or quantum computers. Others possess some properties of elementary particles that could lead to potential applications in quantum fields. Nematic liquid crystals...
Resource Type:: Undergraduate Thesis

Neutron Capture Cross Sections of Cadmium Isotopes

Creator:: Gicking, Allison
Abstract:: The neutron capture cross sections of ¹⁰⁶Cd, ¹⁰⁸Cd, ¹¹⁰Cd, ¹¹²Cd, ¹¹⁴Cd and ¹¹⁶Cd were determined in the present project. Four different OSU TRIGA reactor facilities were used to produce redundancy in the results and to measure the thermal cross section and resonance integral separately. When the present values were compared...
Resource Type:: Undergraduate Thesis

Neutron Capture Cross Sections of Selenium Isotopes

Creator:: Dearmon, Howard D.
Abstract:: The thermal cross sections and resonance integrals for neutron capture by ⁷⁴,⁷⁸,⁸⁰,⁸²Se were measured using the same procedure and equipment for all of the isotopes. Uncertainty and absence of accurate previous values for several isotopes introduces a need of measuring these parameters using similar techniques. This was done using OSU’s...
Resource Type:: Undergraduate Thesis

A Study of Charging Behaviors in Organic Semiconductors using Optical Trapping

Creator:: Founds, Graham M.
Abstract:: We measure the charging and discharging of two organic materials, PCBM and ADT-TES-F. These materials are studied through the noncontact method of particle trapping known as Optical Tweezers, where an IR laser is used to constrain the motion of a coated or noncoated silica sphere while its positional data is...
Resource Type:: Undergraduate Thesis

ScholarsArchive@OSU

Characterizing Optical Signatures of TiO₂ Amorphous Precursors

Molecular Dynamics on REX-GECO1 Reveal Structural Features Governing Fluorescence

Riesz Transforms on a Sphere

Travelling Wave Analysis of Nonlinear Maxwell Models with Applications to Nonlinear Optics

Fabrication and low-temperature measurement of quantum devices

Detection of exciton polaritons in organic thin film TES-ADT

Terahertz field enhancement in nanoantennas on gallium arsenide

Deriving relationships between number of observed short gamma ray bursts and viewing angle

Multi-Grand, Multi-Canonical, Flat Histogram, Monte Carlo Simulations for the Square Well Fluid

Anti-Reflective Films: Spectroscopy and Ellipsometry of Porous Films

Understanding change: surface manipulative-activities as a tool for addressing student difficulties in thermodynamics

Beyond Scattering: Identifying the Boundaries of Light Control with a Genetic Wavefront Optimization Algorithm

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

Plasmon Induced Transparency in Terahertz Metamaterials

Drunken Walking: A Novel Brownian Dynamics Simulation for the Mechanochemical Cycle of the Dynein Motor Protein

Teaching Gravitational Potential Energy: Student Interaction with Surface Manipulatives

Chiral Topological Defects in Nematic Liquid Crystals and Classical Field Theories

Neutron Capture Cross Sections of Cadmium Isotopes

Neutron Capture Cross Sections of Selenium Isotopes

A Study of Charging Behaviors in Organic Semiconductors using Optical Trapping

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