13 October 1995 Far-infrared laser spectroscopy of methanol: a probe for vibrational mode coupling
Author Affiliations +
Methanol has a rich torsion-vibration-rotation spectrum extending from the millimeter and submillimeter regions all the way through the far-infrared (FIR) and up to the near IR. High- resolution studies of the lower vibrational modes have revealed numerous perturbations arising from Fermi, Coriolis, and asymmetry resonances. A remarkable number of the perturbed energy level systems contribute to the extensive FIR laser emission observed from methanol isotopomers optically pumped by CO2 lasers. FIR laser lines involving perturbed IR levels have been invaluable aids in assigning the FIR and IR spectra and thereby locating the specific energy channels through which the CO-stretching, CH3-rocking and OH-bending vibrational modes interact with eachother, frequently via torsion-mediated coupling.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ronald M. Lees, Ronald M. Lees, } "Far-infrared laser spectroscopy of methanol: a probe for vibrational mode coupling", Proc. SPIE 2558, Millimeter and Submillimeter Waves II, (13 October 1995); doi: 10.1117/12.224243; https://doi.org/10.1117/12.224243


Optically Pumped Far Infrared Lasers
Proceedings of SPIE (October 30 1980)
The Fir Waveguide Laser - A Practical Source
Proceedings of SPIE (November 09 1975)
Tunable Diode Laser Spectroscopy Near 10 Microns
Proceedings of SPIE (December 04 1977)
Review of laser-pumped molecular lasers
Proceedings of SPIE (March 30 1995)

Back to Top