Index Catalog // ScholarsArchive@OSU

Aberration Correction of Optical Wavefronts with Sequential, Genetic, and Deep Learning Algorithms

Creator:: Weller, Jesse A.
Abstract:: In this work, we systematically explore the effectiveness of optical aberration correction over a wide range of optical depths using the Segmented and Zernike Polynomial bases. We manufacture a set of 16 optical phantom samples consisting of a clear polyester resin substrate embedded with varying concentrations of aluminum oxide (Al₂O₃)...
Resource Type:: Masters 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

Optical Characterization of Transparent Conductive Thin Films

Creator:: Tucker, Derek A.
Abstract:: The optical characterization of transparent conductive thin films is demonstrated. The basics of transparency and conductivity, as they relate to transparent conductor research, are explained. A functional model of the reflectance and transmittance of a sample film, including interference fringes, is derived from the Fresnel electric field amplitude coefficients. The...
Resource Type:: Honors College Thesis

Light Transmittance Properties of Biological Tissues of the Red-sided Garter Snake, Thamnophis sirtalis parietalis, Between 450 and 850 Nanometers

Creator:: Bixby, Eric M.
Abstract:: Using a spectrometer and photomultiplier tube, I measured the electromagnetic radiation transmittance properties of three types of tissue-- ventral skin, cardiac muscle, and liver tissue--in the red-sided garter snake Thamnophis sirtalis parietalis between the wavelengths of 450 and 850 nanometers (nm). Control readings were taken using a 10⁻² neutral density...
Resource Type:: Honors College Thesis

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

Applications of Holographic Optical Tweezers: Multiplexed Fluorescence Spectroscopy and the Micromechanics of Type-I Collagen

Creator:: Cibula, Matthew A.
Abstract:: The development and some applications of holographic optical tweezers (HOT) are presented. Our HOT system uses a spatial light modulator (SLM) to control the location and properties of the optical trap. We have developed a method for optimizing the diffraction efficiency of a SLM that can be applied in situ...
Resource Type:: Dissertation

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

Determining thickness of zinc sulfide thin films through optical spectroscopy

Creator:: Prudell, Kathleen
Abstract:: A method has been developed to measure the thickness of ZnS thin films on Si using optical interference. Thin film optical interference fringes are dependent upon the thickness of the film, and for this reason the thickness can be determined by measuring reflectance spectrum of a thin film. A grating...
Resource Type:: Undergraduate Thesis

A magneto-optic trap for rubidium

Creator:: Delfs, Holger
Resource Type:: Masters Thesis

Optically stabilized diode laser using high-contrast saturated absorption

Creator:: Cuneo, Christopher J.
Abstract:: Doppler-free saturation spectroscopy in an optically thick atomic vapor is used in an optical-feedback configuration for two semiconductor diode laser systems. One laser system consists of an unmodifed, commercially available diode laser. The other laser system consists of a diode laser initially stabilized by optical feedback from a diffraction grating....
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Aberration Correction of Optical Wavefronts with Sequential, Genetic, and Deep Learning Algorithms

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

Optical Characterization of Transparent Conductive Thin Films

Light Transmittance Properties of Biological Tissues of the Red-sided Garter Snake, Thamnophis sirtalis parietalis, Between 450 and 850 Nanometers

Fourier Analysis of Smartphone Call Quality

Applications of Holographic Optical Tweezers: Multiplexed Fluorescence Spectroscopy and the Micromechanics of Type-I Collagen

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

Determining thickness of zinc sulfide thin films through optical spectroscopy

A magneto-optic trap for rubidium

Optically stabilized diode laser using high-contrast saturated absorption

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search