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Journal of Biological Physics

, Volume 29, Issue 2–3, pp 327–334 | Cite as

Tunneling Processes Induced by Terahertz Electric Fields

  • S.D. Ganichev
  • I.N. Yassievich
  • W. Prettl
Article

Abstract

Tunneling processes induced by terahertz frequency electric fields havebeen investigated.A drastic enhancement of the tunneling probabilityhas been observed by increasing the frequency ω atωτe≫ 1 whereτe is the tunneling time.For a given constant tunneling rate an increase offrequency by a factor of seven leads to a drop of the requiredelectric field strengthby three orders of magnitude.It is shown that the enhancement of tunneling ionization at terahertz frequencies is due to the factthat electrons can absorb energy from the radiation field during tunnelingreducing the effective width of the tunneling barrier.

Electron and nucleus tunneling terahertz fields 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • S.D. Ganichev
    • 1
    • 2
  • I.N. Yassievich
    • 2
  • W. Prettl
    • 1
  1. 1.Institut für Experimentelle und Angewandte PhysikUniversität RegensburgRegensburgGermany
  2. 2.Russian Academy of SciA.F. Ioffe Physico-Technical InstituteSt. PetersburgRussia

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