New frequency measurements and laser lines of optically pumped12CH3OH

The frequencies of 70 optically pumped CW FIR
¹²
CH
3
OH laser lines have been measured relative to stabilized CO
2
lasers. Fifteen new laser lines together with the relative output powers and polarizations for most of the 104 known lines pumped by laser lines in the normal 9 and 10 μm bands of
¹²
C
¹⁶
O
2
are also reported.