Physics – Atomic Physics
Scientific paper
2010-02-15
Physical Review Letters 105, 8 (2010) 083002
Physics
Atomic Physics
Scientific paper
10.1103/PhysRevLett.105.083002
It is generally believed that the recollision mechanism of atomic nonsequential double ionization is suppressed in circularly polarized laser fields because the returning electron is unlikely to encounter the core. On the contrary, we find that recollision can and does significantly enhance double ionization, even to the extent of forming a "knee", the signature of the nonsequential process. Using a classical model, we explain two apparently contradictory experiments, the absence of a knee for helium and its presence for magnesium.
Chandre Cristel
Mauger Francois
Uzer Turgay
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