Absolute intensity measurements of the (1110)II <-- 0000 band of 12C16O2 at 5.2µm
Abstract
A nonlinear least-squares fitting procedure has been used to derive absolute intensities for lines in the P, R, and Q branches of the (11/1/0)II-00/0/0 band of (C-12)(O-16)2 (band center = 1932/cm) from long-path 0.01/cm resolution laboratory spectra. The spectral data were recorded at room temperature and low pressure (less than 10 torr) with the Fourier transform spectrometer in the McMath solar telescope complex at Kitt Peak National Observatory. The observed line intensities were analyzed to derive the vibrational band intensity and F-factor coefficients. To obtain a good fit to the data, it was necessary to include terms in the expression for the F factor, which account for Coriolis-type and Fermi-type interactions and centrifugal distortion effects.
- Publication:
-
Applied Optics
- Pub Date:
- December 1983
- DOI:
- 10.1364/AO.22.003805
- Bibcode:
- 1983ApOpt..22.3805R
- Keywords:
-
- Carbon Dioxide;
- Infrared Spectra;
- Spectral Bands;
- Spectrum Analysis;
- Vibrational Spectra;
- Coriolis Effect;
- Least Squares Method;
- Molecular Rotation;
- Spectral Line Width;
- Atomic and Molecular Physics;
- INFRARED;
- ABSORPTION;
- SPECTROSCOPY: INFRARED;
- SPECTROSCOPY: MOLECULAR;
- SPECTROSCOPY: FOURIER;
- CARBON DIOXIDE