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- Reis, D. A, et al.
(author)
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Probing impulsive strain propagation with x-ray pulses
- 2001
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In: Physical Review Letters. - 1079-7114. ; 86:14, s. 3072-3075
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Journal article (peer-reviewed)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.
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