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Article Dans Une Revue Physical Review Letters Année : 2014

Recollision scenario without tunneling : Role of the ionic core potential

Résumé

We present a purely classical recollision scenario, i.e., without tunneling, which, in contrast to the standard three-step model, takes into account the ionic core potential fully at all stages of the recollision process and is valid at all intensities. We find that a key periodic orbit drives the recollisions by guiding electrons away and back to the core. At sufficiently high intensity, we connect our scenario to the three-step model, and explain why the three-step model leads to good agreement with the cut-off in high harmonic generation despite neglecting the core potential after tunneling.
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Dates et versions

hal-00877940 , version 1 (05-09-2023)

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Adam Kamor, Cristel Chandre, Turgay Uzer, Francois Mauger. Recollision scenario without tunneling : Role of the ionic core potential. Physical Review Letters, 2014, 112 (13), pp.133003. ⟨10.1103/PhysRevLett.112.133003⟩. ⟨hal-00877940⟩
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