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Improved molecular constants and frequencies for the CO[sub 2] laser from new high-J regular and hot-band frequency measurements

Journal Article · · Journal of Molecular Spectroscopy; (United States)
; ; ;  [1];  [2]
  1. National Inst. of Standards and Technology, Boulder, CO (United States). Time and Frequency Division
  2. National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Physics
New frequencies are given for the [sup 12]C[sup 16]O[sub 2], [sup 13]C[sup 16]O[sub 2], [sup 12]C[sup 18]O[sub 2], and [sup 13]C[sup 18]O[sub 2] regular band laser transitions and for the hot-band transitions of [sup 12]C[sup 16]O[sub 2]. These frequencies are based on a new least-squares analysis of all the frequency measurements of these four molecular species including new high-J measurements reported here and recent absolute frequency measurements. Fourteen new high-J transitions of the regular [sup 12]C[sup 16]O[sub 2] laser bands have been observed, the lasers have been stabilized with sub-Doppler saturated 4.3-[mu]m fluorescence, and their frequencies have been measured. Nine of these transitions fill the gap between the 9.4- and 10.4-[mu]m bands. Saturated 4.3-[mu]m fluorescence also has been used to stabilize the 01[sup 1]1-[11[sup 1]0,03[sup 1]0][sub 1] and 01[sup 1]1-[11[sup 1]0,03[sup 1]0][sub 2] hot-band laser lines. New frequency measurements are reported for 84 hot-band lines, which were also included in the reanalysis of the CO[sub 2] laser transitions.
OSTI ID:
7148657
Journal Information:
Journal of Molecular Spectroscopy; (United States), Journal Name: Journal of Molecular Spectroscopy; (United States) Vol. 167:1; ISSN JMOSA3; ISSN 0022-2852
Country of Publication:
United States
Language:
English