本文介绍了一种大气压强脉冲CO_2激光器,它利用高能电子注入激光器容积而达到气体的子电离。这些电子是由激光器外围的高压(120千伏)辉光放电产生。不管气体中是否包含有氦,在单次放电中,这种予电离可允许将300焦耳的能量给于1.7升气体,而不致产生电弧。CO_2、N_2及He的混合气体的容积比为3:3:4时可得到最高输出能量。 This article describes an atmospheric pressure pulsed CO 2 laser that uses high energy electrons injected into the laser volume to achieve gas ionization. These electrons are generated by the high voltage (120 kV) glow discharge on the periphery of the laser. Regardless of whether helium is contained in the gas, this pre-ionization can allow 300 joules of energy to be applied to 1.7 liters of gas in a single discharge without causing arcing. CO 2, N 2 and He mixed gas volume ratio of 3: 3: 4 can get the highest output energy.