Photoionization CO2 laser with an output energy of 300 J

A specific energy ouput of up to 60 J·liter^–1·atm^–1 was achieved for a photoionization atmospheric-pressure CO₂ laser with a total working volume of 5 liters. The composition of the working mixture was optimized and stimulated emission was obtained in the absence of helium (but with addition of dimethylaniline). One of the possible reasons of the discharge instability under weak preionization conditions was analyzed.