Suppression of photoionization by a static field

Ido Gilary, Yesodharan Sajeev, Marcelo F. Ciappina, Alexander Croy, Christoph M. Goletz, Shachar Klaiman, Milan Sindelka, Martin Winter, Waltraut Wustmann, Nimrod Moiseyev*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The dc field Stark effect is studied theoretically for atoms in high intensity laser fields. We prove that the first-order perturbation corrections for the energy and photoionization rate vanish when the dc field strength serves as a perturbational strength parameter. Our calculations show that by applying a dc field in the same direction as the polarization direction of the ac field, the photoinduced ionization rate is almost entirely suppressed. This suppression is attributed to changes in the phase shift of the continuum atomic wave functions which can be controlled by the dc field.

Original languageEnglish
Article number163002
JournalPhysical Review Letters
Volume101
Issue number16
DOIs
StatePublished - 17 Oct 2008
Externally publishedYes

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