Abstract

Tunable 187.9–196-nm vacuum-ultraviolet radiation was generated at room temperature in a beta barium borate crystal by sum-frequency mixing of Nd:YAG laser radiation and the second harmonic of a dye laser pumped by the second harmonic of the same Nd:YAG laser. By use of the advantageous noncollinear phase-matching configuration, a peak power of 1.3 kW was obtained at 194 nm with input power densities as low as $79 \mathrm{MW}/{\mathrm{cm}}^2$ for 1064-nm and $0.65 \mathrm{MW}/{\mathrm{cm}}^2$ for 237.3-nm radiation.

© 1997 Optical Society of America

Generation of tunable 187.9–196-nm radiation in ?-BaB₂O₄:?errata

G. C. Bhar, U. Chatterjee, A. M. Rudra, P. Kumbhakar, R. K. Route, and R. S. Feigelson
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Efficient generation of 200–230-nm radiation in beta barium borate by noncollinear sum-frequency mixing

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39.5% conversion of low-power Q-switched Nd:YAG laser radiation to 266 nm by use of a resonant ring cavity

Joachim Knittel and A. H. Kung
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