Double-electron ionization driven by inhomogeneous fields

A. Chacówn, L. Ortmann, F. Cucchietti, N. Suárez, J. A. Pérez-Hernández, M. F. Ciappina*, A. S. Landsman, M. Lewenstein

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Electron-electron correlation effects play a crucial role in our understanding of sequential (SDI) and non-sequential double ionization (NSDI) mechanisms. Here, we present a theoretical study of NSDI driven by plasmonic-enhanced spatial inhomogeneous fields. By numerically solving the time-dependent Schrödinger equation for a linear reduced model of He and a double-electron time-evolution probability analysis, we provide evidence for enhancement effects in NSDI showing that the double ionization yield at lower laser peak intensities is increased due to the spatial inhomogeneous character of plasmonic-enhanced field. The change in the emission direction of the double-ion as a function of the field inhomogeneity degree demonstrates that plasmonic-enhanced fields could configure a reliable instrument to control the ion emission. Furthermore, our quantum mechanical model, as well as classical trajectory Monte Carlo simulations, show that inhomogeneous fields are as well as a useful tool for splitting the binary and recoil processes in the rescattering scenario.

Original languageEnglish
Title of host publicationExploring the World with the Laser
Subtitle of host publicationDedicated to Theodor Hänsch on his 75th Birthday
PublisherSpringer International Publishing
Pages491-508
Number of pages18
ISBN (Electronic)9783319643465
ISBN (Print)9783319643458
DOIs
StatePublished - 2 Jan 2018

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