Optically pumped /sup 13/CD/sub 3/OH: far infrared laser lines and assignment

摘要

Fourier transform and IR optoacoustic absorption data of /sup 13/CD/sub 3/OH were used to search for new FIR laser lines. We have used a waveguide CO/sub 2/ laser of 300 MHz tunability as the optical pumping source. We report the observation and characterization of 13 new lines. Three of these lines are associated with absorbing transitions appertaining to the weak /sup 13/CD/sub 3/ asymmetric bending mode.