Semiconductor-laser heterodyne frequency measurements on 152-μm molecular transitions
- 1 April 1991
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 8 (4), 713-718
- https://doi.org/10.1364/josab.8.000713
Abstract
A near-infrared semiconductor-laser spectrometer has been heterodyned with a Lamb-dip-stabilized 1.52-μm 3He–20Ne laser for frequency calibration of molecular spectra. Absolute frequencies of 30 vibration–rotation transitions of acetylene (12C2H2, 12C13CH2, 13C2H2), hydrogen cyanide, ammonia (14NH3, 15NH3), and deuterated water (D2O, HDO) molecules have been measured within 20 GHz of the 3He–20Ne-laser frequency.Keywords
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