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High resolution absorption coefficients for Freon-12The ultra high resolution absorption coefficients of the Q-branch of Freon-12 obtained with tunable diode laser spectroscopy are presented. Continuous spectra are presented from 1155/cm to 1163/cm, and absolute wavelength calibration was obtained using SO2 spectra as a standard and a 5 cm Ge etalon for relative calibration between SO2 lines. The Freon-12 data obtained at a pressure of 0.05 torr showed a rich and highly structured spectra, but with the exception of three isolated features, collisional broadening reduces the spectra to a structureless continuum for nitrogen pressures greater than 20 torr. The spectra at 1161/cm continue to exhibit structure at atmospheric pressure.
Document ID
19800031108
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hoell, J. M.
(NASA Langley Research Center Hampton, VA, United States)
Bair, C. H.
(NASA Langley Research Center Hampton, VA, United States)
Williams, B.
(NASA Langley Research Center Hampton, Va., United States)
Harward, C.
(Old Dominion University Norfolk, Va., United States)
Date Acquired
August 10, 2013
Publication Date
November 1, 1979
Publication Information
Publication: Geophysical Research Letters
Volume: 6
Subject Category
Atomic And Molecular Physics
Accession Number
80A15278
Distribution Limits
Public
Copyright
Other

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