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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 18 — Sep. 9, 2013
  • pp: 21433–21443

Correlated multielectron dynamics in mid-infrared laser pulse interactions with neon atoms

Qingbin Tang, Cheng Huang, Yueming Zhou, and Peixiang Lu  »View Author Affiliations


Optics Express, Vol. 21, Issue 18, pp. 21433-21443 (2013)
http://dx.doi.org/10.1364/OE.21.021433


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Abstract

The multielectron dynamics in nonsequential triple ionization (NSTI) of neon atoms driven by mid-infrared (MIR) laser pulses is investigated with the three-dimensional classical ensemble model. In consistent with the experimental result, our numerical result shows that in the MIR regime, the triply charged ion longitudinal momentum spectrum exhibits a pronounced double-hump structure at low laser intensity. Back analysis reveals that as the intensity increases, the responsible triple ionization channels transform from direct (e, 3e) channel to the various mixed channels. This transformation of the NSTI channels leads to the results that the shape of ion momentum spectra becomes narrow and the distinct maxima shift towards low momenta with the increase of the laser intensity. By tracing the triply ionized trajectories, the various ionization channels at different laser intensities are clearly identified and these results provide an insight into the complex dynamics of the correlated three electrons in NSTI.

© 2013 OSA

OCIS Codes
(020.4180) Atomic and molecular physics : Multiphoton processes
(260.3230) Physical optics : Ionization
(270.6620) Quantum optics : Strong-field processes

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: May 17, 2013
Revised Manuscript: July 11, 2013
Manuscript Accepted: August 26, 2013
Published: September 5, 2013

Citation
Qingbin Tang, Cheng Huang, Yueming Zhou, and Peixiang Lu, "Correlated multielectron dynamics in mid-infrared laser pulse interactions with neon atoms," Opt. Express 21, 21433-21443 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-18-21433


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