Experimental observation of different-order components of a vibrational wave packet in a bulk dielectric using high-order Raman scattering

Phys Rev Lett. 2007 May 4;98(18):187402. doi: 10.1103/PhysRevLett.98.187402. Epub 2007 May 4.

Abstract

We use high-order Raman scattering in a bulk dielectric to characterize coherent dynamics with precision typical for gas phase experiments. The experimental pump-probe approach allows for the simultaneous observation and separation in space and time of the individual contributions of different-order Raman processes to a coherent wave packet without relying on phase-matching conditions and within the same experimental geometry. We propose a novel technique to discriminate between stimulated excitation of vibronic levels in the impulsive and intermediate excitation regimes, futhermore allowing us to distinguish between different pathways contributing to the same fifth-order Raman processes.

Publication types

  • Research Support, Non-U.S. Gov't