Answers are grounded in this paper and cite their sources.
A tunable 1-kHz repetition-rate regenerative Ti:sapphire amplifier system is used to produce 200-fs vacuum-ultraviolet pulses in the range of 172.7-187 nm by phase-matched sum-frequency mixing in lithium triborate of the Ti:sapphire's fourth harmonic and a parametrically generated infrared pulse.
No takes yet. Share an insight, caveat, or question.
Seifert et al. (1994) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: