Measurement of Laser Frequencies from CD3OH and CD3OD up to 8.6 THz

Document Type


Department or Administrative Unit


Publication Date



Twenty two laser frequencies, whose values range from 1.6 to 8.6 THz, have been measured for the first time using heterodyne techniques. These laser emissions were generated by an optically pumped molecular laser that used either CD3OH or CD3OD as its lasing medium. At least three of the observed laser emissions generated by CD3OH were discovered during this investigation and the first laser frequencies measured for CD3OH above 8 THz are reported. The laser frequencies were measured with fractional uncertainties up to ± 2 × 10−7, of sufficient accuracy to confirm two proposed far-infrared laser assignments. The offset frequency of the CO2 pump laser with respect to its center frequency was also measured for nearly all laser emissions generated by CD3OH.


This article was originally published in Journal of Infrared, Millimeter, and Terahertz Waves. The full-text article from the publisher can be found here.

Due to copyright restrictions, this article is not available for free download from ScholarWorks @ CWU.


Journal of Infrared, Millimeter, and Terahertz Waves


© Springer Science+Business Media New York 2014