Abstract
A method was developed for the preionization of a gas in high-pressure pulsed lasers. An electrodeless breakdown was induced in the gas by high-voltage pulses applied to the bulk of the gas by a capacitative method. This method was applied to a pulse-periodic CO2 laser. The experiments carried out on this laser confirmed the effectiveness of this relatively simple preionization method, which ensured a high homogeneity of the discharge at atmospheric pressures.
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