Applied Physics B

, Volume 71, Issue 3, pp 331–336 | Cite as

Above-barrier ionization and quantum interference in strong laser fields

  • J. Görlinger
  • L. Plagne
  • H.-J. Kull
Article

Abstract.

Classical predictions of field ionization of hydrogen and of Coulomb scattering in strong laser fields are compared with corresponding exact numerical solutions of the time-dependent Schrödinger equation. In the quasi-static approximation, ionization rates are significantly lower than the quasi-classical tunneling rates in the regime of above-barrier ionization. This reduction is consistent with a simple classical barrier-suppression model. In time-periodic fields, the major differences between the classical and quantum-mechanical treatments arise from quantum-mechanical interference oscillations. These are typical for tunneling barriers in an applied field and for scattering by an oscillating potential.

PACS: 32.80.Fb; 32.80.Rm; 34.80.Qb 

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Copyright information

© Springer-Verlag 2000

Authors and Affiliations

  • J. Görlinger
    • 1
  • L. Plagne
    • 1
  • H.-J. Kull
    • 1
  1. 1.Institut für Theoretische Physik A, Rheinisch Westfälische Technische Hochschule, 52056 Aachen, Germany (Fax: +49-241/8888-188, E-mail: kull@ilt.fhg.de)DE

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