Applied Physics A

, Volume 75, Issue 4, pp 467–478 | Cite as

Picosecond X-ray diffraction studies of laser-excited acoustic phonons in InSb

  • J. Larsson
  • A. Allen
  • P.H. Bucksbaum
  • R.W. Falcone
  • A. Lindenberg
  • G. Naylor
  • T. Missalla
  • D.A. Reis
  • K. Scheidt
  • A. Sjögren
  • P. Sondhauss
  • M. Wulff
  • J.S. Wark
Invited paper

Abstract.

We have employed time-resolved X-ray diffraction with picosecond temporal resolution to measure the time-dependent rocking curves of laser-irradiated asymmetrically cut single InSb crystals. Coherent acoustic phonons were excited in the crystals by irradiation with 800-nm, 100-fs laser pulses at irradiances between 0.25 and 12 mJ/cm2. The induced time-dependent strain profiles (corresponding to the coherent phonons) were monitored by diffracting collimated, monochromatic pulses of X-rays from the irradiated crystals. Recording of the diffracted radiation with a fast low-jitter X-ray streak camera resulted in an overall temporal resolution of better than 2 ps. The strain associated with the coherent phonons modifies the rocking curve of the crystal in a time-dependent manner, and the rocking curve is recorded by keeping the angle of incidence of the X-rays upon the crystal fixed, but varying the energy of the incident X-rays around a central energy of 8.453 keV (corresponding to the peak of the rocking curve of the unperturbed crystal). The observed time-dependent diffraction from the irradiated crystals is in reasonable agreement with simulations over a wide range of energies from the unperturbed rocking-curve peak.

PACS: 63.20.Kr; 61.10.-i; 78.47.+p; 41.50.+h; 43.35.+d 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag 2002

Authors and Affiliations

  • J. Larsson
    • 1
  • A. Allen
    • 2
  • P.H. Bucksbaum
    • 5
  • R.W. Falcone
    • 4
  • A. Lindenberg
    • 4
  • G. Naylor
    • 3
  • T. Missalla
    • 1
  • D.A. Reis
    • 5
  • K. Scheidt
    • 3
  • A. Sjögren
    • 1
  • P. Sondhauss
    • 2
  • M. Wulff
    • 3
  • J.S. Wark
    • 2
  1. 1.Atomic Physics Division, Lund Institute of Technology, P.O. Box 118, 22100 Lund, SwedenSE
  2. 2.Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, UKGB
  3. 3.European Synchrotron Radiation Facility, Grenoble, 38043, FranceFR
  4. 4.Department of Physics, University of California, Berkeley, CA 94720, USAUS
  5. 5.Department of Physics, The University of Michigan, Ann Arbor, MI 48109, USAUS
  6. 6.Division of Synchrotron Radiation Physics, Lund University, P.O. Box 118, 22100 Lund, SwedenSE

Personalised recommendations