SURFACE ELECTRON EJECTION BY LASER EXCITED METASTABLES SPECTROSCOPY OF ACETYLENE
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Date
2002
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Ohio State University
Abstract
We report recent progress in attempts to observe rotationally resolved spectra of directly laser-excited vibrational levels of the third triplet excited electronic state $(T_{3})$ of acetylene, detected via Auger electron ejection from a gold metal surface. Preliminary results obtained with narrow linewidth $(0.005 cm^{1})$ excitation using a frequency-doubled pulse-amplified cw ring laser system will be displayed. Insights into singlet-triplet interaction in acetylene gained from such high-resolution simultaneous laser-induced fluorescence and surface electron ejection by laser excited metastables spectroscopy will be discussed.
Description
Author Institution: Department of Chemistry and G. R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology