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Suppression of multiple ionization of atomic ions in intense ultrafast laser pulses

Greenwood, JB; Johnston, IMG; McKenna, P; Williams, ID; Goodworth, TRJ; Sanderson, JH; Bryan, WA; ... Divall, EJ; + view all (2002) Suppression of multiple ionization of atomic ions in intense ultrafast laser pulses. PHYS REV LETT , 88 (23) , Article 233001. 10.1103/PhysRevLett.88.233001. Green open access

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Abstract

The interaction of an intense laser field with a beam of atomic ions has been investigated experimentally for the first time. The ionization dynamics of Ar+ ions and Ar neutrals in a 60 fs, 790 nm laser pulse have been compared and contrasted at intensities up to 10(16) W cm (-2) . Our results show that nonsequential ionization from an Ar+ target is strongly suppressed compared with that from the corresponding neutral target. We have also observed for the first time the strong field ionization of high lying target metastable levels in the Ar+ beam.

Type: Article
Title: Suppression of multiple ionization of atomic ions in intense ultrafast laser pulses
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.233001
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.233001
Language: English
Keywords: MOMENTUM DISTRIBUTIONS, CROSS-SECTIONS, CHARGED IONS, NOBLE-GASES, FIELDS, DYNAMICS, HELIUM, GENERATION, PHYSICS, H-2(+)
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/129989
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