An overview of recent experiments carried out at McMaster University on optically pumped NH3 lasers will be given. Both pulsed and cw lasers have been investigated, and conversion efficiencies - 40% have been measured. More than sixty laser transitions have been generated in the 10 to 30 μm region, with cw power as high as 10 W and pulse energies >4.5 J on the strongest lines.
J. Reid, J. Reid,
"Optically Pumped Mid-Infrared NH3 Lasers", Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); doi: 10.1117/12.978463; https://doi.org/10.1117/12.978463