DESIGN AND OPERATION OF A SUPERSONIC JET AND LASER-INDUCED FLUORESENCE EXCITATION APPARATUS FOR ANALYSIS OF VIBRATIONAL LEVELS IN ELECTRONIC EXCITED STATES
MetadataShow full item record
Publisher:Ohio State University
An experimental apparatus, based on a Nd:YAG laser system, for fluorescence excitation spectroscopy in a supersonic jet has been constructed and optimized for the collection of spectra from weakly fluorescing samples. The critical experimental parameters and the methods necessary for their determination will be discussed. Details relating to experimental timing, optical alignment, supersonic jet operation, and nozzle design are of special importance. A detailed description of the hardware and software will be presented. The spectra obtained at low temperatures for various carbonyl compounds, such as 2-cyclopenten-1-one, 1-propanal, and 1-propynal, will be shown. These can be analyzed to determine the vibrational levels and molecular conformations in the electronic excited states.
Author Institution: Department of Chemistry, Texas A \& M University
Items in Knowledge Bank are protected by copyright, with all rights reserved, unless otherwise indicated.