The design and emission parameters of a spontaneous radiation source (excilamp) at a 222 nm wavelength are presented. To obtain a high-power UV radiation, a volume transverse discharge was used in the high-pressure Ne–Kr–HCl mixture. A radiation power density of 1 kW cm−2 was gained at the excilamp output at a 2 mJ pulse energy. Successful attempts were made to synchronize the excilamp pulse with the pulse of second laser source. An optical system was developed to deliver and concentrate the UV radiation on to the area with a specified geometry. The method of modelling and analysis technique of the optical system using the OptiCAD 9.3 Optical Analysis Program software is described, as well.
Specific extraction efficiencies of 300 W g−1 sec−1 have been obtained with flow-stabilized electrodes in a longitudinal electric discharge CO laser, representing a 50% enhancement over previous results.
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