Abstract

The non parametric anti-Stokes Raman process provides a possibility for the efficient upconversion of infrared or visible laser radiation into the uv and vuv spectral range. Especially for cw operation the active materials in discharge excited gas laser systems may be used. A first cw system has been operated in an argon ion laser, where 648.3 nm radiation of a dye laser could be converted into 437.5 nm radiation, with a conversion efficiency of more than 20 % and a maximum output power of 150 mW.

© 1988 Optical Society of America