Probing Impulsive Strain Propagation with X-Ray Pulses
- 2 April 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (14) , 3072-3075
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.Keywords
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This publication has 20 references indexed in Scilit:
- Anharmonic Lattice Dynamics in Germanium Measured with Ultrafast X-Ray DiffractionPhysical Review Letters, 2000
- Generation of Femtosecond Pulses of Synchrotron RadiationScience, 2000
- Ultrafast Structural Dynamics in InSb Probed by Time-Resolved X-Ray DiffractionPhysical Review Letters, 1999
- Towards a new ( Q , t ) regime by time-resolved X-ray diffraction: Ultra-sound excited crystals as an exampleEurophysics Letters, 1997
- Femtosecond X-ray Pulses at 0.4 Å Generated by 90° Thomson Scattering: A Tool for Probing the Structural Dynamics of MaterialsScience, 1996
- Laser excitation of ultrashort acoustic pulses: New possibilities in solid-state spectroscopy, diagnostics of fast processes, and nonlinear acousticsSoviet Physics Uspekhi, 1992
- Surface generation and detection of phonons by picosecond light pulsesPhysical Review B, 1986
- Applications of photoacoustic sensing techniquesReviews of Modern Physics, 1986
- X-Ray-Diffraction Studies of Acoustoelectrically Amplified Phonon BeamsPhysical Review Letters, 1975
- Dynamical theory of diffraction applicable to crystals with any kind of small distortionActa Crystallographica, 1962