Results Search Electronic Theses and Dissertations (ETDs)

Objective lens for a miniature endoscopic confocal microscope: Author: El Ferradi, Nabil; Date: 2005-05-15; Program: Electrical Engineering; Abstract: This thesis presents the design and testing of a micro-objective lens for a miniature endoscopic confocal microscope. The advance of confocal endo-microscopy for in-situ imaging can lead to considerable improvements in inspection, analysis, and diagnosis, especially in the biomedical field. The dimensions of the objective lens developed are 4.0 mm long and 2.0 mm in diameter incorporated into a probe that is 2.0 mm in diameter and 10.0 mm long. The size of the probe will allow it to be inserted in some of the smallest channels in an endoscope. The objective lens features a 0.33 numerical apert...; Download File | View full details

The structure of low-coverage Ti and V on the Al(001) crystal surface: Author: Kopczyk, Michael; Date: 2010-08-15; Program: Physics; Abstract: The BFS (Bozzolo-Ferrante-Smith) Method for Alloys predicts that V and Ti would be effective interlayers to act as a diffusion barrier between a metal substrate and metal overlayer. Previous work from our group using the RBS channeling technique, determined that Ti is an effective interlayer between Fe and the Al(001) bulk substrate. The Fe-V-Al(001) system was not treated in this earlier work. This thesis is focused on studying the structure of the first bi-metal interface of these tri-metal systems, i.e. the Ti-Al(001) and V-Al(001) interfaces. LEIS (low-energy ion scattering spectroscopy) a...; Download File | View full details

Epitaxial thin film deposition of magnetostrictive materials and its effect on magnetic anisotropy: Author: McClure, Adam Marc; Date: 2012-05-15; Program: Physics; Abstract: Magnetostriction means that the dimensions of a material depend on its magnetization. The primary goal of this dissertation was to understand the effect of magnetostriction on the magnetic anisotropy of single crystal magnetostrictive thin films, where the epitaxial pinning of the material to a substrate could inhibit its conversion to new dimensions. In order to address this goal, several Fe-based binary alloys were deposited onto various substrates by molecular beam epitaxy. The samples were characterized by an array of techniques including electron diffraction, Rutherford backscattering, vi...; Download File | View full details