Td. Varberg et Km. Evenson, LASER SPECTROSCOPY OF CARBON-MONOXIDE - A FREQUENCY REFERENCE FOR THEFAR-INFRARED, IEEE transactions on instrumentation and measurement, 42(2), 1993, pp. 412-414
The rotational spectrum of carbon monoxide ((CO)-C-12-O-16) in the far
infrared has been accurately measured. Calculated CO rotational frequ
encies derived from a least-squares fit to these data are given for th
e range J'' = 0 to 45 and are accurate to less-than-or-equal-to 20 kHz
(2 sigma) for J'' less-than-or-equal-to 28. These frequencies form th
e most accurate far infrared frequency reference reported to date.