D Dimitrovski and E A Solov'ev 2008 J. Phys. B: At. Mol. Opt. Phys. 41 215003 doi:10.1088/0953-4075/41/21/215003
D Dimitrovski1 and E A Solov'ev2
Show affiliationsThe momentum distribution of ejected electrons from a negative ion induced by an electric pulse is calculated. The transformation of the momentum distribution from symmetric to fully asymmetric form with the increase of the pulse duration τ from zero to infinity is studied. In the adiabatic limit (τ → ∞), the ionization is determined by the tunneling mechanism. In this case, an analytic expression for the momentum distribution is derived. A comparison of numerical calculations with perturbation theory, adiabatic approximation and strong-field approximation shows good agreement in the regions of their validity.
Issue 21 (14 November 2008)
Received 13 August 2008, in final form 2 September 2008
Published 27 October 2008
D Dimitrovski and E A Solov'ev 2008 J. Phys. B: At. Mol. Opt. Phys. 41 215003
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