Studies of Resonantly Enhanced Multiphoton Ionization Processes in Molecules
Final rept. 1 Nov 1986-31 May 1990
CALIFORNIA INST OF TECH PASADENA
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Studies were completed of several Resonance Enhanced Multiphoton Ionization REMPI processes in molecules. The overall objective of this effort was to provide a robust theoretical analysis and prediction of the key spectral features associated with various experimental and technology applications of this technique including its use for state-specific detection and production of species and for diagnostics in combustion and processing plasmas. Specific achievements of this research included 1 studies of ion vibrational distributions produced by REMPI with emphasis on anomalous behavior in these distributions in molecules and molecular fragments, e.g. OH and CF 2 ion rotational distributions that results from REMPI, the underlying dynamics of these processes, and the identification of schemes for enhancing state selectivity in these distributions 3 use of photoelectron angular distributions produced by REMPI to probe molecular alignment, an important dynamical feature in gas-surface collisions and molecular fragmentation.
- Atomic and Molecular Physics and Spectroscopy