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Applied Physics A

, Volume 98, Issue 3, pp 679–689 | Cite as

Electron heating through a set of random levels in the conduction band of insulators induced by femtosecond laser pulses

  • H. Bachau
  • A. N. Belsky
  • I. B. Bogatyrev
  • J. Gaudin
  • G. Geoffroy
  • S. Guizard
  • P. Martin
  • Yu. V. Popov
  • A. N. Vasil’ev
  • B. N. Yatsenko
Article

Abstract

We develop a theory describing the heating of electrons in crystalline insulators irradiated by high-intensity laser pulses. In agreement with photoelectron yield versus intensity measurements, we assume that electrons are excited into the conduction band from defect layers and traps. The electron dynamics due to direct inter-branch transitions within the conduction band is simulated by solving of time-dependant Schrödinger equation. The set of levels for this equation is supposed to be random with a distribution function equal to the density of states in the conduction band. The influence of different parameters on the electron heating efficiency is studied. The theory is applied for diamond; the theoretical spectrum is in qualitative agreement with the experimental observations.

PACS

42.50.Hz 79.60.-i 05.45.Pq 72.20.Ht 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • H. Bachau
    • 1
  • A. N. Belsky
    • 2
  • I. B. Bogatyrev
    • 3
  • J. Gaudin
    • 4
  • G. Geoffroy
    • 5
  • S. Guizard
    • 5
  • P. Martin
    • 1
  • Yu. V. Popov
    • 6
  • A. N. Vasil’ev
    • 6
  • B. N. Yatsenko
    • 1
    • 6
  1. 1.Centre des Lasers Intenses et ApplicationsCNRS-Université Bordeaux I, CEATalence CedexFrance
  2. 2.Laboratoire de Physico-Chimie des Matériaux LuminescentsUniversité de Lyon, Université Lyon 1, CNRS, UMR 5620Villeurbanne CedexFrance
  3. 3.Faculty of PhysicsLomonosov Moscow State UniversityMoscowRussia
  4. 4.DESY/European XFELHamburgGermany
  5. 5.Laboratoire des Solides IrradièsUMR7642, CEA/DSM/DRECAM-CNRS-Ecole PolytechniquePalaiseau CedexFrance
  6. 6.Skobeltsyn Institute of Nuclear PhysicsLomonosov Moscow State UniversityLeninskie Gory, MoscowRussia

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