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Proceedings Paper

Spectroscopy Of The CF[sub]4[/sub] Laser
Author(s): R. S. McDowell; C. W. Patterson; C. R. Jones; M. I. Buchwald; J. M. Telle
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Paper Abstract

When v2+v4 of CF4 at 1066 cm-1 is pumped by the 9.4-µm CO2 laser, stimulated emission on the (v2+v4) + v2 transition produces many discrete laser lines in the region 605 to 655 cm-1. A comprehensive program of Doppler-limited absorption spectroscopy of CF4 has been carried out using tunable semiconductor diode lasers, and has led to a full understanding of the rovibrational energy levels involved in the laser process. The frequencies of 28 laser lines of 12CF4 have been measured with an accuracy of ±0.2 cm- 1, for 12C16O2 pump lines from P(14) to R(24). From the complete vibration-rotation analysis of the v2+v4 band, the pump and laser transitions have been identified. Using the spectroscopic constants determined in the band analyses, we can predict within ±0.2 cm-1 the laser lines to be expected from any given pumping frequency. All observed laser lines have been accounted for; in a few cases there is evidence for a relaxation of J-value and/or Coriolis sublevel in the upper state. Application of these results to improving the performance of the CF4 laser and for designing it to produce specific desired output frequencies is discussed.

Paper Details

Date Published: 13 November 1980
PDF: 8 pages
Proc. SPIE 0190, Los Alamos Conference on Optics 1979, (13 November 1980); doi: 10.1117/12.957753
Show Author Affiliations
R. S. McDowell, University of California (United States)
C. W. Patterson, University of California (United States)
C. R. Jones, University of California (United States)
M. I. Buchwald, University of California (United States)
J. M. Telle, University of California (United States)

Published in SPIE Proceedings Vol. 0190:
Los Alamos Conference on Optics 1979
Donald H. Liebenberg, Editor(s)

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