Abstract
We report the results of experimental and numerical investigations of a discharge KrF laser with specific pump power of 3.5 and 7 MW/cm3; generation is obtained with specific radiation pulse energy of about 6 and 9.5 J/L for an internal energy efficiency of about 4%. Time dependences of the formation of charged and excited particles in a dense excimer plasma with an electron concentration of ~1016 cm–3 are obtained. The conditions for effective operation of the laser are proposed, which will ensure a further increase in the specific radiation energy by more than two times with preserved high internal laser efficiency relative to the energy input into the discharge.
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This study was supported by the Russian Science Foundation (agreement no. 20-79-10297).
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Translated by N. Wadhwa
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Panchenko, Y.N., Puchikin, A.V., Yampolskaya, S.A. et al. Discharge KrF Laser with a High Specific Energy of Radiation. Tech. Phys. 67, 215–220 (2022). https://doi.org/10.1134/S1063784222040041
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DOI: https://doi.org/10.1134/S1063784222040041