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Diffraction of strongly convergent X-rays from picosecond acoustic transients

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Abstract

Following femtosecond laser excitation, large transient changes in the X-raydiffraction efficiency have been observed in thin crystalline films of germanium. This behavior is explained in terms of the thermo-acoustic response of the impulsively heated material, when an inhomogeneously strained surface layer is probed by divergent X-ray beams.

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Authors and Affiliations

  1. Institut für Experimentelle Physik, Universität Duisburg-Essen, Lotharstrasse 1, 47048, Duisburg, Germany

    U. Shymanovich, M. Nicoul, J. Blums, K. Sokolowski-Tinten, A. Tarasevitch, M. Horn von Hoegen & D. von der Linde

  2. Technical Physics Institute, Riga Technical University, Riga, Latvia

    J. Blums

  3. Institut für Halbleiterbauelemente und Werkstoffe, Universität Hannover, Appelstr. 11a, 30167, Hannover, Germany

    T. Wietler

Authors
  1. U. Shymanovich
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  2. M. Nicoul
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  3. J. Blums
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  4. K. Sokolowski-Tinten
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  5. A. Tarasevitch
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  6. T. Wietler
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  7. M. Horn von Hoegen
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  8. D. von der Linde
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Corresponding author

Correspondence to K. Sokolowski-Tinten.

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PACS

61.10.Nz; 41.50.+h

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Shymanovich, U., Nicoul, M., Blums, J. et al. Diffraction of strongly convergent X-rays from picosecond acoustic transients. Appl. Phys. A 87, 7–11 (2007). https://doi.org/10.1007/s00339-007-3863-6

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  • DOI: https://doi.org/10.1007/s00339-007-3863-6

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