Correlated electron emission in laser-induced nonsequence double ionization of Helium

Abstract

In this paper, we have investigated the correlated electron emission of the nonsequence double ionization (NSDI) in an intense linearly polarized field. The theoretical model we employed is the semiclassical rescattering model, the model atom we used is the helium. We find a significant correlation between magnitude and direction of the momentum of two emission electrons, and give a good explanation for this striking phenomenon by observing the classical collisional trajectories. We argue that this correlation phenomenon is universal in NSDI process, as revealed by the recent experiment on the argon.

4 pages, 3 figures, accepted for publication in Phys. Rev. A

References in corpus (1)

• Classical collisional trajectories as the source of strong-field double ionization of helium in the knee regime

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