Probing impulsive strain propagation with x-ray pulses
Condensed Matter
2009-11-07 v1
Abstract
Pump-probe time-resolved x-ray diffraction of allowed and nearly forbidden reflections in InSb is used to follow the propagation of a coherent acoustic pulse generated by ultrafast laser-excitation. The surface and bulk components of the strain could be simultaneously measured due to the large x-ray penetration depth. Comparison of the experimental data with dynamical diffraction simulations suggests that the conventional model for impulsively generated strain underestimates the partitioning of energy into coherent modes.
Cite
@article{arxiv.cond-mat/0102179,
title = {Probing impulsive strain propagation with x-ray pulses},
author = {D. A. Reis and M. F. DeCamp and P. H. Bucksbaum and R. Clarke and E. Dufresne and M. Hertlein and R. Merlin and R. Falcone and H. Kapteyn and M. Murnane and J. Larsson and Th. Missalla and J. Wark},
journal= {arXiv preprint arXiv:cond-mat/0102179},
year = {2009}
}
Comments
4 pages, 2 figures, LaTeX, eps. Accepted for publication in Phys. Rev. Lett. http://prl.aps.org