Electrical and stimulated emission characteristics of a CO2 photoionization laser

An investigation was made of the electrical and stimulated emission characteristics of a CO₂ photoioniratkm laser in the case when the laser cell was separated from the light sources by a quartz tube. It was found that ionization was enhanced when N,N-dimethylaniline vapor was added to the laser mixture. The single-pass absorption losses in this vapor were 7%. The efficiency was 10% when the energy input to a discharge with an active volume of 0.32 liter was 180 J·liter^–1·atm^–1.