Excimer XeCl mini laser
S.S. Anufrick1, A.P. Volodenkov1, K.F. Znosko1, V.F. Losev2
1Yanka Kupala State University of Grodno, Grodno, Belarus
2High Current Electronics Institute of the Siberian Branch of the RAS, Tomsk, Russia
Keywords: XeCl mini laser, excimer laser, excimer molecule, pulsed discharge, discharge electrodes, peaking capacitance
Abstract
An electric-discharge XeCl mini laser and the results of its experimental modeling are described. The laser uses a two-stage system of magnetic compression of current pulses, semiconductor high-voltage bipolar transistors as a switch, and preionization of the working medium by barrier discharge radiation from under the grid electrode. The dependence of the output parameters of the mini laser on the conditions of its excitation and the composition of the active medium is established. The maximal pulse energy of ~ 12 mJ was obtained for a mixture of the composition 1.5 torr HCl + 15 torr Xe + 4 atm Ne at a voltage across the peaking capacitor of 20 kV. The duration of the lasing pulses at half maximum was ~ 20 ns. The efficiency of the XeCl mini laser relative to the energy stored in the sharpening capacitor is ~ 4%.
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