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Heterodyne frequency measurements of /sup 13/CO/sub 2/ laser hot band transitions

Journal Article · · Appl. Opt.; (United States)
DOI:https://doi.org/10.1364/AO.20.003635· OSTI ID:6004967
The frequencies of twenty-eight lines in the P-branch of the 01/sup 1/1--(11/sup 1/0, 03/sup 1/0)/sub I/ band of /sup 13/C/sup 16/O/sub 2/, observed in laser emission, and three lines in the R-branch, observed in absorption with a diode laser, have been carefully measured with stabilized CO/sub 2/ lasers. A significant improvement in the ro-vibrational constants has been obtained from a least squares fit to these data. The laser lines stabilized by saturated absorption techniques provide convenient, accurate (uncertainty <0.1 MHz) frequency references near 11.7 ..mu..m.
Research Organization:
U.S. National Bureau of Standards, Time ampersand Frequency Division, Boulder, Colorado 80303
OSTI ID:
6004967
Journal Information:
Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 20:20; ISSN APOPA
Country of Publication:
United States
Language:
English