Double-electron above threshold ionization of helium

Jonathan Parker; L.R. Moore; Karen Cairns; Daniel Dundas; Kenneth Taylor

doi:10.1088/0953-4075/34/3/103

Double-electron above threshold ionization of helium

Jonathan Parker
, L.R. Moore
, Karen Cairns
, Daniel Dundas
, Kenneth Taylor

Research output: Contribution to journal › Article › peer-review

156 Citations (Scopus)

Abstract

We present calculations of intense-field multiphoton ionization processes in helium at XUV wavelengths. The calculations are obtained from a full-dimensional integration of the two-electron time-dependent SchrÃ¶dinger equation. A momentum-space analysis of the ionizing two-electron wavepacket reveals the existence of double-electron above threshold ionization (DATI). In momentum-space two distinct forms of DATI are resolved, namely non-sequential and sequential. In non-sequential DATI correlated electrons resonantly absorb and share energy in integer units of Ïlaser.

Original language	English
Pages (from-to)	L69-L78
Number of pages	10
Journal	Journal of Physics B: Atomic Molecular and Optical Physics
Volume	34
Issue number	3
DOIs	https://doi.org/10.1088/0953-4075/34/3/103
Publication status	Published - 14 Feb 2001

ASJC Scopus subject areas

General Physics and Astronomy
Atomic and Molecular Physics, and Optics

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10.1088/0953-4075/34/3/103

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title = "Double-electron above threshold ionization of helium",

abstract = "We present calculations of intense-field multiphoton ionization processes in helium at XUV wavelengths. The calculations are obtained from a full-dimensional integration of the two-electron time-dependent Schr{\~A}¶dinger equation. A momentum-space analysis of the ionizing two-electron wavepacket reveals the existence of double-electron above threshold ionization (DATI). In momentum-space two distinct forms of DATI are resolved, namely non-sequential and sequential. In non-sequential DATI correlated electrons resonantly absorb and share energy in integer units of {\"I}laser.",

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T1 - Double-electron above threshold ionization of helium

AU - Parker, Jonathan

AU - Moore, L.R.

AU - Cairns, Karen

AU - Dundas, Daniel

AU - Taylor, Kenneth

PY - 2001/2/14

Y1 - 2001/2/14

N2 - We present calculations of intense-field multiphoton ionization processes in helium at XUV wavelengths. The calculations are obtained from a full-dimensional integration of the two-electron time-dependent SchrÃ¶dinger equation. A momentum-space analysis of the ionizing two-electron wavepacket reveals the existence of double-electron above threshold ionization (DATI). In momentum-space two distinct forms of DATI are resolved, namely non-sequential and sequential. In non-sequential DATI correlated electrons resonantly absorb and share energy in integer units of Ïlaser.

AB - We present calculations of intense-field multiphoton ionization processes in helium at XUV wavelengths. The calculations are obtained from a full-dimensional integration of the two-electron time-dependent SchrÃ¶dinger equation. A momentum-space analysis of the ionizing two-electron wavepacket reveals the existence of double-electron above threshold ionization (DATI). In momentum-space two distinct forms of DATI are resolved, namely non-sequential and sequential. In non-sequential DATI correlated electrons resonantly absorb and share energy in integer units of Ïlaser.

UR - https://www.scopus.com/pages/publications/0035250593

U2 - 10.1088/0953-4075/34/3/103

DO - 10.1088/0953-4075/34/3/103

M3 - Article

SN - 0953-4075

VL - 34

SP - L69-L78

JO - Journal of Physics B: Atomic Molecular and Optical Physics

JF - Journal of Physics B: Atomic Molecular and Optical Physics

IS - 3

ER -

Double-electron above threshold ionization of helium

Abstract

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