Title :
Heterodyne measurements of submillimeter laser spectrometer frequencies
Author :
Radford, H.E. ; Peterson, F.R. ; Jennings, D.A. ; Mucha, J.A.
Author_Institution :
Havard College Observatory and Smithsonian Astrophysical Observatory, Cambridge, MA, USA
fDate :
3/1/1977 12:00:00 AM
Abstract :
The frequencies of 46 CW laser lines commonly used for submillimeter spectroscopy, with wavelengths between 0.1 and 0.7 mm, have been measured by heterodyne methods. All the fines are optically pumped by a CO2laser, with threshold pump powers of 3 W or less. The precision of measurement, limited by the laser linewidth, is typically ± 1 part per million.
Keywords :
Extraterrestrial measurements; Frequency estimation; Frequency measurement; Laser excitation; Optical mixing; Power lasers; Power measurement; Pump lasers; Spectroscopy; Wavelength measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1977.1069287
