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Determination of molecular spectroscopic parameters and energy-transfer rates by double-resonance spectroscopyThe spectroscopy of small to medium-size polyatomic molecules can be extremely complex, especially in higher-lying overtone and combination vibrational levels. The high density of levels also complicates the understanding of inelastic collision processes, which is required to model energy transfer and collision broadening of spectral lines. Both of these problems can be addressed by double-resonance spectroscopy, i.e., time-resolved pump-probe measurements using microwave, infrared, near-infrared, and visible-wavelength sources. Information on excited-state spectroscopy, transition moments, inelastic energy transfer rates and propensity rules, and pressure-broadening parameters may be obtained from such experiments. Examples are given for several species of importance in planetary atmospheres, including ozone, silane, ethane, and ammonia.
Document ID
19900017439
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Steinfeld, J. I. (Massachusetts Inst. of Tech. Cambridge., United States)
Foy, B. (Massachusetts Inst. of Tech. Cambridge., United States)
Hetzler, J. (Massachusetts Inst. of Tech. Cambridge., United States)
Flannery, C. (Massachusetts Inst. of Tech. Cambridge., United States)
Klaassen, J. (Massachusetts Inst. of Tech. Cambridge., United States)
Mizugai, Y. (Sophia Univ. Tokyo, Japan)
Coy, S. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
August 14, 2013
Publication Date
May 1, 1990
Publication Information
Publication: NASA, Goddard Space Flight Center, First International Conference on Laboratory Research for Planetary Atmospheres
Subject Category
Lunar And Planetary Exploration
Accession Number
90N26755
Funding Number(s)
CONTRACT_GRANT: NAGW-1667
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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