High power far-infrared emission from CO2laser-pumped D2S and HDS

Intense superfluorescent emission in the far infrared has been produced for the first time at wavelengths of
\lambda = 135.7 \mu
m and
\lambda = 90.1 \mu
m from D
2
S pumped with a CO
2
TEA laser. The pump and emission lines have been assigned to molecular transitions in the ν
2
vibrational mode. An additional strong line at
\lambda = 183.2 \mu
m has been attributed to the HDS molecule.