HIGH RESOLUTION SPECTROSCOPY OF VIBRATIONALLY EXCITED FLUOROFORM-D BY HETERODYNE FREQUENCY MEASUREMENT OF SMMW LASER EMISSION
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Date
1983
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Publisher
Ohio State University
Abstract
Submillimeter wave laser action has been previously $reported^{1}$ in deuterated fluoroform $(CDF_{3})$ which is optically pumped by a $CO_{2}$ laser. In this paper, accurate heterodyne measurements are reported for the frequencies of 21 of these laser emissions. Nineteen of these lines can be assigned to the $\nu_{5}$ degenerate vibrational state. The data were fit with a theoretical expression for the frequencies containing terms up to sixth order in J and K and also containing all important $\ell$-doubling effects. The quality of the fit was excellent, yielding accurate values for many of the molecular constants of the $\nu_{5}$ state. $^{1}$M. S. Tobin and R. D. Felock, Opt. Lett. 5, 430 (1980).
Description
Author Institution: U. S. Army Electronics Research and Development Command, Harry Diamond Laboratories