University of Illinois at Urbana-Champaign
Dynamics of Phonons in Crystals as Studied by Picosecond Coherent Anti-Stokes Raman Spectroscopy
Abstract
dc:descriptionThe dynamics of the motions of ions and molecules in crystals are of fundamental interest, but due to the short correlation times of the motions (generally in the picosecond or subpicosecond range) the study of the dynamics is a difficult experimental problem. At the same time, theoretical progress in understanding the dynamics has been difficult due to the complexity of the crystal potential function. In this thesis the picosecond coherent anti-Stokes Raman (CARS) technique is applied to the study of intermolecular and intramolecular phonons in organic molecular crystals and ionic crystals. In conjunction with recent theoretical calculations on the phonon dynamics in naphthalene, the experimental results lead to an understanding of the mechanism and pathways for decay of the phonons over a wide temperature range.
Degree
thesis:*- Name thesis:degree_name
- Ph.D.
- Level thesis:degree_level
- Dissertation
- Discipline thesis:degree_discipline
- Chemistry
- Grantor
- University of Illinois at Urbana-Champaign
- Year dc:date
- 2014
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Schosser, Claire Lynn
Subjects
dc:subject × 1Identifiers
dc:identifier.*- Identifier
- (UMI)AAI8422147
- OAI identifier oai:identifier
- oai:www.ideals.illinois.edu:2142/70256