Sub-Doppler Frequency Measurements on OCS Near 1689 and 1885 cm−1

✍ Scribed by J.S. Wells; A. Dax; L. Hollberg; A.G. Maki

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 396 KB
• Volume: 170
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1057

✦ Synopsis

We have used an optical polarization heterodyne technique to measure the frequencies of two OCS lines, one near (5.3 \mu \mathrm{m}) and the other near (5.9 \mu \mathrm{m}). These sub-Doppler measurements gave (56533766.125 \pm 0.035 \mathrm{MHz}) for the (2 \nu_{2}+\nu_{3} P(16)) transition and (50627632.013 \pm 0.100 \mathrm{MHz}) for the (2 \nu_{3} P(48)) line. The (P(16)) measurement is in excellent agreement ((20 \mathrm{kHz})) with a new result obtained with an alternate technique by a group at the University of Bonn. The (2 \nu_{3}) measurement was combined with other frequency measurements to produce an improved calibration table for the (2 \nu_{3}) OCS band near (1700 \mathrm{~cm}^{-1}). These and other sub-Doppler frequency measurements in different spectral regions give improved frequencies for a number of OCS bands. These new frequencies will soon be incorporated into calibration data that will be available over the Internet.

c: 1995 Academic Press. Inc.