SHORT STOKES PULSE GENERATION BY MIXED RAMAN GAS

We successfully created a single short Stokes pulse by a newly develop ed technique that uses mixed gas as a backward stimulated Raman scatte ring media. Slow rising forward Stokes generation by hydrogen suppress es the later part of the pulse train which usually appears in backward Stokes generation by methane. We demonstrate that a single 67 ps Stok es pulse was generated from a 20 ns KrF laser pulse by the combination of a methane and hydrogen gas mixture.