Third-order, nonresonant, difference-frequency (2ω1 − ω2) mixing in Xe gas was used to generate femtosecondtime-scale UV pulses, tunable near 193 nm. Subsequent amplification of these pulses in an ArF excimer gain module led to the production of ≃300-fs, ≃300-µJ optical pulses at 193 nm.
© 1992 Optical Society of America
J. H. Glownia, M. Kaschke, and P. P. Sorokin, "Amplification of 193-nm femtosecond seed pulses generated by third-order, nonresonant, difference-frequency mixing in xenon," Opt. Lett. 17, 337-339 (1992)