Double-electron ionization driven by inhomogeneous fields

A. Chacón; L. Ortmann; F. Cucchietti; N. Suárez; J. A. Pérez-Hernández; M. F. Ciappina; A. S. Landsman; M. Lewenstein

doi:10.1007/s00340-017-6672-4

Double-electron ionization driven by inhomogeneous fields

A. Chacón, 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: Contribution to journal › Article › peer-review

4 Scopus citations

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 language	English
Article number	116
Journal	Applied Physics B: Lasers and Optics
Volume	123
Issue number	4
DOIs	https://doi.org/10.1007/s00340-017-6672-4
State	Published - 1 Apr 2017
Externally published	Yes

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title = "Double-electron ionization driven by inhomogeneous fields",

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 Schr{\"o}dinger 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.",

author = "A. Chac{\'o}n and L. Ortmann and F. Cucchietti and N. Su{\'a}rez and P{\'e}rez-Hern{\'a}ndez, {J. A.} and Ciappina, {M. F.} and Landsman, {A. S.} and M. Lewenstein",

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doi = "10.1007/s00340-017-6672-4",

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T1 - Double-electron ionization driven by inhomogeneous fields

AU - Chacón, A.

AU - Ortmann, L.

AU - Cucchietti, F.

AU - Suárez, N.

AU - Pérez-Hernández, J. A.

AU - Ciappina, M. F.

AU - Landsman, A. S.

AU - Lewenstein, M.

PY - 2017/4/1

Y1 - 2017/4/1

N2 - 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.

AB - 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.

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DO - 10.1007/s00340-017-6672-4

M3 - 文章

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SN - 0946-2171

VL - 123

JO - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

IS - 4

M1 - 116

ER -

Double-electron ionization driven by inhomogeneous fields

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