Hh. Fielding et al., GENERATION OF COHERENT VUV RADIATION USING RESONANCE-ENHANCED 4-WAVE DIFFERENCE-MIXING OF NANOSECOND AND FEMTOSECOND LASER-PULSES IN KR, Optics communications, 123(1-3), 1996, pp. 129-132
A four-wave difference-mixing scheme based on resonance-enhanced two-p
hoton excitation of Kr with a narrow bandwidth nanosecond laser and a
tunable femtosecond laser is used to generate tunable, intense (10(7)
photons/pulse), coherent, short pulse radiation around 124 nm.