Abstract
Time-resolved x-ray diffraction with picosecond time resolution is used to observe scattering from coherent acoustic phonons in laser-excited InSb crystals. The observed oscillations in the crystal reflectivity are in agreement with a model based on dynamical diffraction theory. Synchrotron radiation pulses of ∼300 fs in duration have been generated by femtosecond laser pulses modulating the electron beam in the Advanced Light Source.
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