A Theoretical Estimate of Coherence Effects in the Femtosecond Spectroscopy of Bulk Semiconductors

  • G. F. Kuras
  • P. Kočevar


A recently developed combined density-matrix and Monte-Carlo description of the femtosecond laser-pulse spectroscopy of bulk semiconductors is extended to explore the possibility of experimentally detectable coherence effects in the nonexcitonic regime at high excitation densities, and here in particular of Rabi-type density oscillations and corresponding oscillations in the time resolved degenerate pump-and-probe absorption spectroscopy. The analysis contains the first numerical evaluation of so-called higher-order polarisation scatterings. For GaAs as reference material these calculations allow to determine the essential experimental prerequi-sits for a demonstration of Rabi-type oscillatory effects in a laser-pulse excited bulk semiconductor.


Recombination Coherence GaAs Haas 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    T. Kuhn and F. Rossi, Phys. Rev. B 46, 7496 (1992)ADSCrossRefGoogle Scholar
  2. [2]
    A. Kuznetsov, Phys. Rev. B 44, 8721 (1991)Google Scholar
  3. [3]
    F. J. Adler, P. Kočevar, J. Schilp, T. Kuhn, and F. Rossi, Semicond. Sci. Technol. 9, 446 (1994)ADSCrossRefGoogle Scholar
  4. [4]
    F. Adler, G. F. Kuras, and P. Kočevar, SPIE Proc. 2142, 206 (1994)ADSCrossRefGoogle Scholar
  5. [5]
    M. Lindberg and S. W. Koch, Phys. Rev. B 38, 3342 (1988)ADSCrossRefGoogle Scholar
  6. [6]
    F. Rossi, S. Haas, and T. Kuhn, Phys. Rev. Lett. 72, 152 (1994)ADSCrossRefGoogle Scholar
  7. [7]
    H. Haug and S. W. Koch, Quantum Theory of the Optical and Electronic Properties of Semiconductors (World Scientific, 1993).`Google Scholar
  8. [8]
    G. F. Kuras, Diploma Thesis, KarläFranzensäUniversiät Graz, 1995 (unpublished)Google Scholar

Copyright information

© Plenum Press, New York 1996

Authors and Affiliations

  • G. F. Kuras
    • 1
  • P. Kočevar
    • 1
  1. 1.Inst. f. Theoretische PhysikKarl—Franzens— UniversitätGrazAustria

Personalised recommendations