Methanol isotopomers and the optically pumped far-infrared laser

Li-Hong Xu; Ronald M. Lees; Elza C.C. Vasconcellos; S. C. Zerbetto; L. R. Zink; Kenneth M. Evenson

doi:10.1117/12.224253

13 October 1995 Methanol isotopomers and the optically pumped far-infrared laser

Li-Hong Xu, Ronald M. Lees, Elza C.C. Vasconcellos, S. C. Zerbetto, L. R. Zink, Kenneth M. Evenson

Proceedings Volume 2558, Millimeter and Submillimeter Waves II; (1995) https://doi.org/10.1117/12.224253
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Methanol and its isotopic species have been systematically investigated as sources of far- infrared (FIR) laser emission utilizing a newly designed optically pumped FIR laser system. The system combines several different FIR laser cavity designs with the extended line coverage available from a recently developed high-resolution CO₂ laser of high efficiency. New FIR laser lines have been observed pumped by fundamental band CO₂ lines of high J, sequence band lines, and hot-band CO₂ transitions. The new FIR laser lines extend over a broad spectral region, and contribute significantly to the frequency coverage of the optically pumped FIR laser. Many new short-wavelength lines have been observed for normal CH₃OH using a 2-m-long Fabry-Perot FIR laser cavity. Accurate heterodyne measurements have been made of the FIR laser frequencies and the CO₂ laser pump offsets for many of the new lines.

Citation Download Citation

Li-Hong Xu, Ronald M. Lees, Elza C.C. Vasconcellos, S. C. Zerbetto, L. R. Zink, and Kenneth M. Evenson "Methanol isotopomers and the optically pumped far-infrared laser", Proc. SPIE 2558, Millimeter and Submillimeter Waves II, (13 October 1995); https://doi.org/10.1117/12.224253

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