FIELD: physics, optics.
SUBSTANCE: invention relates to laser technologies. The method of obtaining of optical discharge in gas consists in optical breakdown of gas with formation of absorbing plasma domain and its maintaining in a laser beam during its action. Meanwhile gas breakdown with formation of plasma domain is performed by focusing of radiation of short-pulse laser, and the maintaining of plasma domain is performed in the resonator of continuous laser or laser with long duration of impulse due to multiple passing of radiation of continuous laser or laser with long duration of impulse through the optical discharge.
EFFECT: enhanced efficiency of laser energy utilisation.
6 cl, 2 dwg
