OPTIKA ATMOSFERY I OKEANA JOURNAL
V.E. ZUEV INSTITUTE OF ATMOSPHERIC OPTICS
Vol. 1, issue 02, article # 5
Voitsekhovskaya O. K., Zamaraev K. A., Ippolitov I. I. Microwave Spectroscopy of atmospheric Gases. A New Approach. // Atmospheric and oceanic optics. 1988. V. 1. No. 02. P. 38-44.Copy the reference to clipboard
Abstract:
The feasibility of enhancing the weak spectral line absorption coefficient through the change of the population of the lower transition level by means of the optical pump pulse is discussed. For example, the H2O absorption coefficient for a weak microwave transition in the hot 010-010 band is shown to be increased by a factor of 105-106 using a 100 mJ, 10-7 sec pulse from a CO pumping laser. The proposed approach makes it possible to study the spectral lines due to transitions with high quantum numbers.