The temperature dependence of the intensities of the Q-branches in the Raman spectrum of gaseous CO2 in the Fermi resonance region was measured in the range from 300 K to 650 K. The intensity contours were reproduced by computer simulation, taking into account energy levels up to (v1v21v3) = (30°0) as final states. Calibration curves are given for the determination of temperatures from the intensity distribution in the hot bands of the Raman spectrum of CO2.
P. Wienecke, H. Finsterhölzl, H. W. Schrötter, and J. Brandmüller, "Raman Spectra of Carbon Dioxide and Its Isotopic Variants in the Fermi Resonance Region. Part IV: Temperature Dependence on Q-Branch Intensities from 300 K to 650 K," Appl. Spectrosc. 40, 70-76 (1986)