Optical pumping of the N2O–He and N2O–CO2–He mixtures by a pulsed multifrequency HF laser for producing active media to amplify 10-μm high-power ultrashort pulses

Optical pumping of the N₂O–He and N₂O–CO₂–He active media (at a total pressure of 1 atm) by ~1-μs pulses from a multifrequency HF laser is studied with a view to use these media for amplifying a 10-μm, 10^-12-s ultrashort pulse (USP). Transitions forming the USP amplification band are determined, the energy stored in them is found, and the gains corresponding to maximum inversion in the medium are calculated.