Laser action in pure carbon dioxide kept at atmospheric pressure and preionized by electron beam bombardment

The electron-beam-controlled method was used in the excitation of pure carbon dioxide gas at atmospheric pressure and pulse laser emission was obtained. This emission appeared near the threshold during the afterglow stage. When the rate of pumping of the upper laser level was increased, the delay time of the output radiation pulses relative to the discharge current became less than the duration of the discharge current pulses. This also reduced the duration of the output pulses. The specific energy characteristics of the discharge, output characteristics of the laser radiation, efficiency, and duration of output pulses were determined for different discharge parameters.