Raman conversion of femtosecond pulses in a solid-state medium is reported. Stimulated Raman scattering (SRS) was observed in an impulsive SRS regime when the pump pulse’s duration was comparable with the period of Raman-active vibration. The generation of super broadband radiation, which is a distinguishing feature of impulsive SRS, is shown.
© 2003 Optical Society of America
(190.5650) Nonlinear optics : Raman effect
(190.5890) Nonlinear optics : Scattering, stimulated
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(290.5910) Scattering : Scattering, stimulated Raman
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
A. S. Grabtchikov, R. V. Chulkov, V. A. Orlovich, M. Schmitt, R. Maksimenko, and W. Kiefer, "Observation of Raman conversion for 70-fs pulses in KGd(WO 4) 2 crystal in the regime of impulsive stimulated Raman scattering," Opt. Lett. 28, 926-928 (2003)