Prediction of new optically pumped submillimeter-wave laser lines in deuterated fluoroform

Over 300 new submillimeter-wave laser emission lines are predicted for the ν
5
band of deuterated fluoroform (CDF
3
) when isotopic CO
2
and N
2
O infrared pump lasers are used. These lines are calculated by using recently derived molecular constants that were determined by fitting known infrared, microwave, and submillimeter-wave transitions in CDF
3
. The calculated emissions (estimated accuracy generally within ± 1 MHz) should be useful to those with specific wavelength requirements. The molecule provides a rich choice of frequencies at approximately 20 GHz intervals extending from about 40 GHz to beyond 1 THz. This approach eliminates much of the usual trial-and-error technique of finding new submillimeter-wave emission lines.