Ms. Dzhidzhoev et al., OFF-AXIS AMPLIFICATION OF PICOSECOND UV P ULSES WITH NEAR-DIFFRACTIONAL-LIMIT ANGULAR DIVERGENCE IN DISCHARGE EXCIMER XECL LASER, Kvantovaa elektronika, 20(2), 1993, pp. 159-162
Experiments on off-axis amplification of picosecond UV pulses in disch
arge excimer XeCl laser have been carried out. The angular divergence
of the amplified laser beam was detected to be slightly larger than th
at without amplification. The divergence of a gaussian-like beam with
45 mm diameter was found to be 1.3 times larger than the diffractional
limit, the UV pulse energy being 50 mJ.