Journal of Experimental and Theoretical Physics

, Volume 111, Issue 3, pp 431–439

Investigation of ultrafast processes in photoexcited bismuth by broadband probing in the wavelength range 0.4–0.9 μm

  • A. A. Melnikov
  • O. V. Misochko
  • V. O. Kompanets
  • A. L. Dobryakov
  • S. V. Chekalin
Solids and Liquids

DOI: 10.1134/S106377611009013X

Cite this article as:
Melnikov, A.A., Misochko, O.V., Kompanets, V.O. et al. J. Exp. Theor. Phys. (2010) 111: 431. doi:10.1134/S106377611009013X
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Abstract

The decay of the photoexcited state of a bismuth single crystal is investigated in the wavelength range from 400 to 900 nm by means of femtosecond laser reflection spectroscopy. Oscillations produced by coherent fully symmetric A1g phonons have been detected in the photoinduced response, along with a relaxation component. The dynamics of the electronic subsystem of the crystal is shown to be characterized by three values of the decay time: 1 ps, 7 ps, and ∼1 ns. The spectral dependence of the reflectivity oscillation amplitude has been measured; the possible cause of the shape of the derived curve is described.

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • A. A. Melnikov
    • 1
  • O. V. Misochko
    • 2
  • V. O. Kompanets
    • 1
  • A. L. Dobryakov
    • 3
  • S. V. Chekalin
    • 1
  1. 1.Institute of SpectroscopyRussian Academy of SciencesTroitsk, Moscow oblastRussia
  2. 2.Institute of Solid-State PhysicsRussian Academy of SciencesChernogolovka, Moscow oblastRussia
  3. 3.Department of ChemistryHumboldt UniversityBerlinGermany

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