Laser action at 12.812 μm in optically pumped NH3

Abstract

Optical pumping of the aR (6,0) line of the ν2 fundamental vibrational band of NH3 has led to laser action on the aP (8,0) line at 12.812 μm of the same vibrational band. A 5-kW pulsed output has been obtained by using 1.5 MW of pump power at 9.294 μm from a CO2 laser.