Kinetics of Rare Gas Halide and Mercury Halide Lasers
Final rept. 1 Jan-31 Dec 1980
KANSAS STATE UNIV MANHATTAN DEPT OF CHEMISTRY
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The XeC1B-X and C-A emission spectra obtained from reaction of Xe3P sub 2 state or 3P sub 1 state with C12, CC4, and C0C12 in the presence of He, Ne, Ar, Kr and N2 bath gases were used to study the vibrational relaxation and transfer between the B and C state of XeC1. By using the different C1 donors different ranges of vibrational energy were emphasized. The bound-free emission spectra were simulated for various pressures of bath gas to obtain vibrational distributions. Numerical modeling of the XeC1B and XeC1C vibrational populations and the BC intensity ratio as a function of pressure gave rate constants for vibrational relaxation and transfer, as well as the model for the state-to-state processes. For Ar as the bath gas, vibrational relaxation can be characterized by an exponential gap model. The vibrational energy loss upon electronic state transfer was best described by a Poisson type function displaced to lower energy from the initial energy. These basic models also describe the relaxation in the other gases with He and Ne being less efficient and Kr and N2 more efficient than Ar. The magnitudes of the rate constants and the models are discussed.
- Lasers and Masers
- Atomic and Molecular Physics and Spectroscopy