Emission frequencies of the CF4laser

104 (\nu_{2} + \nu_{4}) \leftarrow \nu_{2}
hot-band transitions, some of which correspond to known
(\nu_{2} + \nu_{4}) \leftarrow \nu_{2}
CF
4
laser lines, have been identified and measured in high-resolution Doppler-limited spectra of
¹²
CF
4
near 16 μm, obtained with a tunable diode laser. From an analysis of these frequencies, the rotational and tensor splitting constants for the ν
2
vibrational level have been determined. These constants, together with the
\nu_{2} + \nu_{4}
pump-band spectrum previously obtained, allow the laser emission frequencies for any given CO
2
pump line to be calculated with an accuracy of 0.01-0.003 cm
^-1
.