Abstract
Recently, third harmonic generation (THG) with rare gases and tour-wave sum mixing (4-WSM) with metal vapors have produced coherent and tunable radiation in the VUV from ~200 to 106 nm. In the past two years, THG with Ar, Kr, and Ne and 4-WSM with Hg have pushed such generation to the XUV region <100 nm. Here we describe an excimer-pumped dye laser source using two-photon resonant 4-WSM in Hg vapor, which has provided continuously tunable radiation from 125 to 89 nm (a range of ~32,0GO cm−1) for spectroscopic investigations of Kr2, Ar2, and N2.
© 1985 Optical Society of America
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