Frequency-dependent stabilization of He- by a superintense laser field

Qi Wei, Sabre Kais, Nimrod Moiseyev

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Abstract

Using the alternative representation of time-dependent Hamiltonians that describe laser-driven systems, we have performed calculations for the stability of He- in a superintense linearly polarized laser field. We estimated the laser parameters, amplitude, and frequency needed to stabilize He-. If we choose the laser frequency ω=5eV, the laser intensity needed for stabilization is Icritical =9.0× 1015 W cm2 and the maximal detachment energy is 1.0 eV. Our results show that high frequencies and large intensities are preferred for stabilizing multiply negative atomic ions in superintense laser fields.

Original languageEnglish
Article number013407
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume76
Issue number1
DOIs
Publication statusPublished - 17 Jul 2007

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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