University of Central Florida STARS Electronic Theses and Dissertations, 2004-2019 2006 Raman Spectroscopy Of Glasseswith High And Broad Raman Gain In The Boson Peak Region Yu Guo University of Central Florida Part of the Physics Commons Find similar works at: https://stars.library.ucf.edu/etd University of Central Florida Libraries http://library.ucf.edu This Doctoral Dissertation (Open Access) is brought to you for free and open access by STARS. It has been accepted for inclusion in Electronic Theses and Dissertations, 2004-2019 by an authorized administrator of STARS. For more information, please contact
[email protected]. STARS Citation Guo, Yu, "Raman Spectroscopy Of Glasseswith High And Broad Raman Gain In The Boson Peak Region" (2006). Electronic Theses and Dissertations, 2004-2019. 996. https://stars.library.ucf.edu/etd/996 RAMAN SPECTROSCOPY OF GLASSES WITH HIGH AND BROAD RAMAN GAIN IN THE BOSON PEAK REGION by YU GUO B.S. University of Science and Technology of China, 1999 M.S. University of Miami, 2002 A dissertation submitted in partial fulfillment required for the degree of Doctor of Philosophy in Department of Physics in the College of Science at the University of Central Florida Orlando, Florida Summer Term 2006 Major Professor: Alfons Schulte © 2006 Yu Guo ii ABSTRACT This thesis investigates Raman spectra of novel glasses and their correlation with structure for Raman gain applications. Raman gain for all-optical amplification by fibers depends significantly on the cross section for spontaneous Raman scattering allowing to compare signal strength and spectral coverage. We also investigate the relationship between glass structure and the Boson peak (enhancement of the low-frequency vibrational density of states) and report new inelastic neutron scattering spectra for niobium-phosphate glasses.