Probing Impulsive Strain Propagation with X-Ray Pulses

D. A. Reis; M. F. DeCamp; P. H. Bucksbaum; R. Clarke; E. Dufresne; M. Hertlein; R. Merlin; R. Falcone; H. Kapteyn; M. M. Murnane; J. Larsson; Th. Missalla; J. S. Wark

doi:10.1103/PhysRevLett.86.3072

Probing Impulsive Strain Propagation with X-Ray Pulses

D. A. Reis, M. F. DeCamp, P. H. Bucksbaum, R. Clarke, E. Dufresne, M. Hertlein, R. Merlin, R. Falcone, H. Kapteyn, M. M. Murnane, J. Larsson, Th. Missalla, and J. S. Wark

Phys. Rev. Lett. 86, 3072 – Published 2 April 2001

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.

Received 28 November 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.3072

Authors & Affiliations

D. A. Reis^1,2, M. F. DeCamp¹, P. H. Bucksbaum^1,2, R. Clarke¹, E. Dufresne¹, M. Hertlein¹, R. Merlin^1,2, R. Falcone³, H. Kapteyn⁴, M. M. Murnane⁴, J. Larsson⁵, Th. Missalla⁵, and J. S. Wark⁶

¹Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120
²Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099
³Department of Physics, University of California, Berkeley, California 94720-7300
⁴JILA and Department of Physics, University of Colorado and National Institute of Standards and Technology, Campus Box 440, Boulder, Colorado 80309-0440
⁵Atomic Physics Division, Lund Institute of Technology, P. O. Box 118, SE-221 00, Lund, Sweden
⁶Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom