Frequencies of Optically Pumped Sub-Doppler Far-Infrared Laser Lines of Methanol.
Sub-Doppler signals from the gain curves of four lines of a transversely pumped far-infrared methanol laser were used to stabilize the frequencies of the laser. The frequencies of four of the strongest FIR laser lines (70, 119, 123, and 570 µm) were measured. Lasers locked to these lines have a frequency reproducibility of a few parts in 10(8) and an uncertainty of less than 30 kHz. Copyright 1998 Academic Press.
Time and Frequency Division, National Institute of Standards and Technology-NIST, 325 Broadway, Boulder, Colorado, 80303-3328
EM
Telles
LR
Zink
KM
Evenson