Determination of molecular spectroscopic parameters and energy-transfer rates by double-resonance spectroscopy

Details Determination of molecular spectroscopic parameters and energy-transfer rates by double-resonance spectroscopy Determination of molecular spectroscopic parameters and energy-transfer rates by double-resonance spectroscopy

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3077..114s&link_type=abstract

In NASA, Goddard Space Flight Center, First International Conference on Laboratory Research for Planetary Atmospheres p 114-128

Computer Science

Energy Transfer, Inelastic Collisions, Molecular Spectroscopy, Planetary Atmospheres, Polyatomic Molecules, Pressure Broadening, Ammonia, Ethane, Infrared Radiation, Line Spectra, Microwaves, Ozone, Silanes, Vibration

Scientific paper

The 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.

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