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Conferences > QELS > 2005 > QFC > QFC2
  • Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies
  • Technical Digest (CD) (Optica Publishing Group, 2005),
  • paper QFC2

Coherent phonons in a semiconductor superlattice studied by femtosecond x-ray diffraction

M. Bargheer, N. Zhavoronkov, Y. Gritsai, J. C. Woo, D. S. Kim, M. Woerner, and T. Elsaesser

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Abstract

For the first time femtosecond x-ray diffraction measures the coherent strain connected to a zone-folded longitudinal acoustic phonon optically excited in a GaAs/AlGaAs su-perlattice, giving direct evidence for the displacive excitation mechanism.

© 2005 Optical Society of America

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