4 Matching Results

Search Results

Results: 1 - 4
open access

Scanning angle Raman spectroscopy: Investigation of Raman scatter enhancement techniques for chemical analysis

Description: This thesis outlines advancements in Raman scatter enhancement techniques by applying evanescent fields, standing-waves (waveguides) and surface enhancements to increase the generated mean square electric field, which is directly related to the intensity of Raman scattering. These techniques are accomplished by employing scanning angle Raman spectroscopy and surface enhanced Raman spectroscopy. A 1064 nm multichannel Raman spectrometer is discussed for chemical analysis of lignin. Extending dis… more
Date: March 14, 2013
Creator: Meyer, Matthew W.
Partner: UNT Libraries Government Documents Department
open access

Controlling atomistic processes on Pb films via quantum size effects and lattice rotation

Description: The two main techniques used to record the data in this dissertation were Spot Profile Analysis - Low Energy Electron Diffraction (SPA-LEED) and Scanning Tunneling Microscopy (STM). A specific data analysis technique for LEED data called G(S) curves is described in depth. G(S) curves can provide a great deal of structural information about the surface; including step heights, island size, and island separation. The effects of quantum size effects (QSE) on the diffusion and critical island sizes… more
Date: June 14, 2012
Creator: Binz, Steven
Partner: UNT Libraries Government Documents Department
Back to Top of Screen