Abstract

The oscillator strength, f, of the xenon 7s[3/2]₁ state was directly measured by determining the phase matching condition for four-wave sum mixing in xenon-argon gas mixtures. The vacuum ultraviolet (VUV) mixing scheme for xenon is shown in Fig. 1.¹ Optical mixing with a pair of pulsed dye lasers was used to produce the six-nsec long input beams at 252 and 1507 ma. The generated VUV output near 116.5 nm was tuned by varying the 1507 nm input. The VUV pulse energies of up to 1 μJ were measured using a separate nitric oxide ionization chamber.

© 1984 Optical Society of America