Robin S. McDowell, Chris W. Patterson, Norris G. Nereson, F. R. Petersen, and J. S. Wells, "CO2 laser coincidences with ν3 of SiF4 near 9.7 μm," Opt. Lett. 6, 422-424 (1981)
Doppler-limited tunable-diode laser spectra of the stretching fundamental
(ν3) of 28SiF4 at
1031 cm−1 have been analyzed and the spectroscopic constants
determined. Explicit identifications have been made for transitions near
CO2 laser lines between 1023 and 1038 cm−1; 51
such transitions have been observed in sub-Doppler saturation spectra obtained
with a CO2 laser. The closest observed coincidence is
R(53) F19 of
28SiF4, at −1.391 MHz from
12C16O2P(30). Implications for isotope-enrichment experiments are
discussed.
Robin S. McDowell, Chris W. Patterson, Norris G. Nereson, F. R. Petersen, and J. S. Wells, "CO2 laser coincidences with ν3 of SiF4 near 9.7 μm: errata," Opt. Lett. 6, 647-647 (1981) https://opg.optica.org/ol/abstract.cfm?uri=ol-6-12-647
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The isotopio species 12C16O2,
13C16O2,
12C18O2, and
13C18O2 are identified as 626, 636,
828, and 838, respectively.
Rounded to nearest 5 MHz.
Reported at (−1.5 ± 0.5) MHz by Beterov et al.3
There are also high-J (J ≥ 50) Q-branch lines in this region.
The isotopio species 12C16O2,
13C16O2,
12C18O2, and
13C18O2 are identified as 626, 636,
828, and 838, respectively.
Rounded to nearest 5 MHz.
Reported at (−1.5 ± 0.5) MHz by Beterov et al.3
There are also high-J (J ≥ 50) Q-branch lines in this region.