Kinetic Studies for XeF and KrF Lasers
Abstract
The goal of this program is to determine the radiative lifetime and the collisional quenching rate coefficients for the XeF and KrF upper laser levels using a state selective, laser excited fluorescence technique. Details of the experimental procedure were described in our semi-annual report. During this reporting period, we have determined the XeF(B1/2) radiative lifetime by monitoring the decay of the 353 nm XeF(B1/2 to X) fluorescence as a function of pressure. Preliminary collisional quenching rate constants have been determined for He, Xe, and F2 from the variation of the fluorescence decay time constant as a function of partial pressure of the collision partner. Collisional quenching by Ar was investigated; however, no bimolecular rate constant was determined because of nonexponential decay of the XeF(B to X) emission in the presence of Ar. This behavior suggests collisional coupling to some other excited state, most likely the XeF(C3/2) state.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 14, 1977
- Accession Number
- ADA046582
Entities
People
- C. H. Fisher
- R. E. Center