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Proceedings Paper

Highly excited vibrational levels studies using time-resolved Fourier transform emission spectroscopy
Author(s): Gregory V. Hartland; Dong Qin; Hai-Lung Dai
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Paper Abstract

The spectroscopy and dynamics of highly excited vibrational levels of the a1A1 and b1B1 states of CH2 were studied using time-resolved Fourier transform emission spectroscopy. The use of a Fourier transform spectrometer allows efficient acquisition of dispersed fluorescence spectra over several thousand cm-1 range in the visible, with better than 1 cm-1 resolution, from this short lived and low concentration species. Furthermore, the temporal evolution of the dispersed fluorescence spectra due to collisional relaxation can be monitored with 50 ns time-resolution. The results presented and discussed in this paper are: (1) the state-to-state rotational energy transfer and reactive cross- sections for b1B1 (0, 16O, 0) CH2; and (2) rotational analysis of several previously unobserved high vibrational levels of the CH2 a1A1 state.

Paper Details

Date Published: 22 April 1993
PDF: 12 pages
Proc. SPIE 1858, Laser Techniques for State-Selected and State-to-State Chemistry, (22 April 1993); doi: 10.1117/12.143079
Show Author Affiliations
Gregory V. Hartland, Univ. of Pennsylvania (United States)
Dong Qin, Univ. of Pennsylvania (United States)
Hai-Lung Dai, Univ. of Pennsylvania (United States)

Published in SPIE Proceedings Vol. 1858:
Laser Techniques for State-Selected and State-to-State Chemistry
Cheuk Yiu Ng, Editor(s)

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