Abstract
Far-infrared (FIR) laser and infrared pump transitions of the O-18 isotopic species of methanol have been assigned for a number of CO2 laser pump lines with the aid of high-resolution Fourier transform spectra in the FIR and CO-stretch band regions. The structures of the FIR laser energy level systems and the transition assignments were established through the use of closed transition combination loops, which also yield improved accuracies for the FIR laser wavenumbers.
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Lees, R.M., Goulding, R.R.J., Zhao, S. et al. Assignments of far-infrared laser lines in the CO-stretching state of 0–18 methanol. Int J Infrared Milli Waves 15, 1883–1906 (1994). https://doi.org/10.1007/BF02096057
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DOI: https://doi.org/10.1007/BF02096057