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Proceedings Paper

Methanol isotopomers and the optically pumped far-infrared laser
Author(s): Li-Hong Xu; Ronald M. Lees; Elza C.C. Vasconcellos; S. C. Zerbetto; L. R. Zink; Kenneth M. Evenson
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Paper 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.

Paper Details

Date Published: 13 October 1995
PDF: 11 pages
Proc. SPIE 2558, Millimeter and Submillimeter Waves II, (13 October 1995); doi: 10.1117/12.224253
Show Author Affiliations
Li-Hong Xu, National Institute of Standards and Technology (Canada)
Ronald M. Lees, Univ. of New Brunswick (Canada)
Elza C.C. Vasconcellos, UNICAMP (Brazil)
S. C. Zerbetto, UNICAMP (Brazil)
L. R. Zink, National Institute of Standards and Technology, Univ. of Colorada, and NOOA (United States)
Kenneth M. Evenson, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 2558:
Millimeter and Submillimeter Waves II
Mohammed N. Afsar, Editor(s)

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