Stimulated anti-Stokes Raman scattering in molecular hydrogen allows for the generation of continuously tunable narrow-bandwidth radiation down to the transmission limit of vacuum ultraviolet (VUV) window materials. Simultaneous irradiation of UV-pump radiation (in this application, dye laser radiation of wavelength λ = 372 nm) and of radiation whose wavelength corresponds to the first Stokes component allows a considerable increase in efficiency—by nearly 2 orders of magnitude in the far VUV. The additional Stokes radiation is generated in a simple manner during the passage of the unfocused pump radiation through a high-pressure Raman cell that precedes the VUV Raman cell.
© 1998 Optical Society of America
Alexandra Goehlich, U. Czarnetzki, and H. F. Döbele, "Increased Efficiency of Vacuum Ultraviolet Generation by Stimulated Anti-Stokes Raman Scattering with Stokes Seeding," Appl. Opt. 37, 8453-8459 (1998)