Index Catalog // ScholarsArchive@OSU

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:: Remove and Model Zernike Aberrations by Aaron J. Goschie An undergraduate thesis advised by Professor

Bandgap measurements of nonspecular materials using a bifurcated fiber optic method of diffuse reflectance

Creator:: Wells, Blake
Abstract:: A method for determining bandgap energy using diffuse reflection is presented. The method uses bifurcated fiber optic cables to measure the diffuse reflection of diffusely reflective materials. The absorption spectrum is extrapolated from the diffuse reflection spectrum and used to determine the bandgap of powdered materials. The theory of nonspecular...
Resource Type:: Undergraduate Thesis
Full Text:: considered.1 The upward flux and downward flux are denoted J(z) and I(z) respectively, as shown in Figure

Fourier Analysis of Smartphone Call Quality

Creator:: Dempsey, Zackery E.
Abstract:: In recent decades, the cell phone has provided a convenient form of long-distance communi-cation to the general public. Despite the technological improvements since, cell phones and their smartphone successors have suffered from a lack of clarity over a typical voice call, a result of their limited bandwidth. New phone services,...
Resource Type:: Undergraduate Thesis
Full Text:: l S tr en gt h ( d B V ) Frequency (Hz) 10,000 Hz Microphone Test 10 Chapter III

Polarization Dependent Spectral Analysis Reveals Dipole Alignment and Intermolecular Coupling in Anthradithiophene Organic Semiconducting Crystals

Creator:: Lam, Andrew
Abstract:: Organic photovoltaics are being explored as the next generation material for semiconducting and optoelectronic devices but are limited by their stability and efficiency. One new candidate is crystallized Anthradithiophene (ADT), which is a promising photo-voltaic material due to its high quantum yield and adjustable side groups. The side derivatives TES-F,...
Resource Type:: Undergraduate Thesis
Full Text:: variants different H-aggregate and J-aggregate dipole orientations. An analysis of these side groups is

The Two Wells System: A Benchmark for Monte Carlo Methods in Statistical Mechanics

Creator:: Sprueill, Henry
Abstract:: Computational statistical mechanics leans heavily on the class of Markov Chain Monte Carlo Algorithms. Many such algorithms exist, and simulations can run for several weeks, making the selection of algorithms a difficult, but critical task. In this work, we introduce a benchmark system of two quadratic wells with an analytical...
Resource Type:: Undergraduate Thesis
Full Text:: . Consider RN to be the state space for our system with a Hamiltonian, H. Our goal is to construct

Freezing a Softly Repulsive Fluid : Monte Carlo Methods and the Weeks-Chandler-Andersen Potential

Creator:: May, Christopher
Abstract:: The equation of state for a fluid described by the Weeks-Chandler-Andersen (WCA) potential was solved to determine at what pressures and temperatures the fluid will theoretically freeze. A Monte Carlo (MC) algorithm was used to sample a system of 256 spheres for a set of thermodynamic averages to locate and...
Resource Type:: Undergraduate Thesis
Full Text:: Function 10 F. Structure Factor 11 G. Helmholtz Free Energy 12 H. Gibbs Free Energy 13 III. Methods 14 A

Simulating the Dynein Motor Protein: A Monte Carlo Approach to Achieve Coordinated Stepping

Creator:: Kiatvongcharoen, Jin
Abstract:: The motor protein dynein is responsible for cellular processes such as axonal transport and cell division by delivering vital information along the microtubule track. A failed delivery can cause severe damage to the cell’s functionality and lead to neurological diseases. Despite dynein’s rich history in cellular research, the mechanism of...
Resource Type:: Undergraduate Thesis
Full Text:: , i.e. t > ta = 1 ka (2.3) and ρb = kb(1−H(rub,y − �)). (2.4) Here, t is the total one-bound time

Synchronized Cellular Mechanosensing due to External Periodic Driving

Creator:: Chase, Katelyn J.
Abstract:: The response of cells to periodic driving is important for many biological processes, particularly blood flow and heart functioning. Our research analyzes the collective shear stress response of fibroblast cells due to a periodic driving frequency. When cells experience shear stress, they release calcium into the cytosol. To quantify the...
Resource Type:: Undergraduate Thesis
Full Text:: ., Zawieja, D. C., & Moore, J. E. (2015). Measurement of shear stress-mediated intracellular calcium

Measuring Low Intensity Light Reflections of High Temperature CO₂ Adsorbed on SiO₂ Near Brewster's Angle

Creator:: Ferron, Thomas J.
Abstract:: This investigation expands on earlier methods of using surface polarization reflection (SPR) to characterize the first few monolayers of a surface. Past research measured intensities of light reflecting off an SiO₂ optical flat inside a vacuum. Pressure of applied gas was changed to view a change in reflection. In an...
Resource Type:: Undergraduate Thesis
Full Text:: = ’ ’ f o r j in range ( l en ( a r r a y l i s t ) ) : i f j > 0 : t h e l i n e += ’ , ’ t h e l i n e

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:: Colloid and Interface Science, vol. 446, pp. 24–30, May 2015. 4 [13] O. K. Kwon, J.-H. Park, D. W. Kim, S

ScholarsArchive@OSU

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

Bandgap measurements of nonspecular materials using a bifurcated fiber optic method of diffuse reflectance

Fourier Analysis of Smartphone Call Quality

Polarization Dependent Spectral Analysis Reveals Dipole Alignment and Intermolecular Coupling in Anthradithiophene Organic Semiconducting Crystals

The Two Wells System: A Benchmark for Monte Carlo Methods in Statistical Mechanics

Freezing a Softly Repulsive Fluid : Monte Carlo Methods and the Weeks-Chandler-Andersen Potential

Simulating the Dynein Motor Protein: A Monte Carlo Approach to Achieve Coordinated Stepping

Synchronized Cellular Mechanosensing due to External Periodic Driving

Measuring Low Intensity Light Reflections of High Temperature CO₂ Adsorbed on SiO₂ Near Brewster's Angle

Organic Semiconductors : Incorporating Xylindein into (Opto)Electronic Devices

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