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High power tunable argon excimer laser(1MW)[1,2] was used for a pumping source of stimulated Raman scattering in hydrogen gas. The intense 126nm radiation from the argon excimer laser with tuning range from 124nm to 127.5nm was focused into a Raman cell with lm long(Fig.1). Stimulated Raman scattering was observed in hydrogen molecules in the VUV region around 126nm for the first time to our knowlage. In CH4 and N2 no SRS was observed because of severe absorption of pumping light in these molecules.
© 1986 Optical Society of America
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