High resolution absorption coefficients for Freon-12

Details High resolution absorption coefficients for Freon-12 High resolution absorption coefficients for Freon-12

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979georl...6..837h&link_type=abstract

Geophysical Research Letters, vol. 6, Nov. 1979, p. 837-840.

Physics

1

Absorption Spectra, Absorptivity, Freon, Gas Spectroscopy, High Resolution, Laser Spectroscopy, Spectral Resolution, Calibrating, Continuous Spectra, Gas Pressure, Lead Selenides, Nitrogen, Semiconductor Lasers, Spectroscopic Analysis, Sulfur Dioxides, Tunable Lasers

Scientific paper

The 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.

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