Coherent phonon generation and the two stimulated Raman tensors

T. E. Stevens, J. Kuhl, and R. Merlin
Phys. Rev. B 65, 144304 – Published 28 March 2002
PDFExport Citation


We show that stimulated Raman scattering by phonons is described by two separate tensors, one of which accounts for the phonon-induced modulation of the susceptibility, and the other one for the dependence of the coherent mode amplitude on the light intensity. These tensors have the same real component, associated with impulsive generation of phonons, but different imaginary parts. If the imaginary term dominates, the mechanism for two-band processes is displacive in nature. Femtosecond pump-probe experiments on antimony, using laser energies in the range of the E2 gap, support the two-tensor model.

  • Received 22 January 2002


©2002 American Physical Society

Authors & Affiliations

T. E. Stevens1,2,*, J. Kuhl2, and R. Merlin1

  • 1The Harrison M. Randall Laboratory of Physics, The University of Michigan, Ann Arbor, Michigan 48109-1120
  • 2Max-Planck-Institut für Festkörperforschung, D-70569, Stuttgart, Germany

  • *Present address: Veridian ERIM International, P.O. Box 134008, Ann Arbor, Michigan 48113-4008.

References (Subscription Required)

Click to Expand

Vol. 65, Iss. 14 — 1 April 2002

Reuse & Permissions
Access Options
Physics Next Workshops
March 20, 2017

The American Physical Society is initiating a new series of international workshops. These Physics Next workshops will be aimed at fostering new and emerging areas of physics research, focusing on topics that straddle traditional subject boundaries and are starting to “emerge from the noise.”

The upcoming workshop is titled “Physics Next: From Quantum Fields to Condensed Matter,” and will take place on August 24 - 26, 2017. More information.

Authorization Required




Sign up to receive regular email alerts from Physical Review B

Log In



Article Lookup

Paste a citation or DOI

Enter a citation