Abstract
Picosecond stimulated anti-Stokes Raman scattering of hydrogen gas in the ultraviolet region has been studied, using the second harmonic of a modelocked Nd3+: YAG laser as an incident pulse (25 ps, 532 nm, 10 mJ). Good conversion efficiency for higher-order anti-Stokes lines has been realized, yielding 2 μJ (200 kW, 10 ps) output for the 8th one at 192 nm. Some features of transient stimulated Raman scattering have been examined and discussed.
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