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Transfer and storage of vibrational energy in liquids: collisional up-pumping of carbon monoxide in liquid argon

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j100399a030· OSTI ID:5815663
Isotopically enriched carbon monoxide (88% /sup 13/C/sup 16/O, 12% /sup 13/C/sup 18/O) dissolved in liquid argon was optically pumped to the nu = 1 level by a CW CO laser. This energy was then redistributed by collisional up-pumping to higher vibrational levels. Fluorescence from vibrational levels up to nu = 20 of the heavier isotope was observed from the steady-state distribution. The features of the population distribution are discussed in terms of the strength of optical pumping, carbon monoxide concentration, translational temperature, and the pertinent rate constants for energy transfer. For some conditions the populations of the vibrational levels are inverted. The potential for these solutions to store vibrational energy is discussed. 32 references, 5 figures.
Research Organization:
Indiana Univ., Bloomington
OSTI ID:
5815663
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:8; ISSN JPCHA
Country of Publication:
United States
Language:
English