• Featured in Physics
  • Rapid Communication
  • Open Access

Time delay between photoemission from the 2p and 2s subshells of neon

L. R. Moore, M. A. Lysaght, J. S. Parker, H. W. van der Hart, and K. T. Taylor
Phys. Rev. A 84, 061404(R) – Published 15 December 2011
Physics logo See Synopsis: First Out of the Gate

Abstract

The R-matrix incorporating time (RMT) method is a method developed recently for solving the time-dependent Schrödinger equation for multielectron atomic systems exposed to intense short-pulse laser light. We have employed the RMT method to investigate the time delay in the photoemission of an electron liberated from a 2p orbital in a neon atom with respect to one released from a 2s orbital following absorption of an attosecond xuv pulse. Time delays due to xuv pulses in the range 76–105 eV are presented. For an xuv pulse at the experimentally relevant energy of 105.2 eV, we calculate the time delay to be 10.2±1.3 attoseconds (as), somewhat larger than estimated by other theoretical calculations, but still a factor of 2 smaller than experiment. We repeated the calculation for a photon energy of 89.8 eV with a larger basis set capable of modeling correlated-electron dynamics within the neon atom and the residual Ne+ ion. A time delay of 14.5±1.5 as was observed, compared to a 16.7±1.5 as result using a single-configuration representation of the residual Ne+ ion.

  • Figure
  • Figure
  • Figure
  • Received 1 September 2011

DOI:https://doi.org/10.1103/PhysRevA.84.061404

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

©2011 American Physical Society

Synopsis

Key Image

First Out of the Gate

Published 15 December 2011

Theoretical models edge closer to explaining how photoionization is affected by many-body interactions.

See more in Physics

Authors & Affiliations

L. R. Moore, M. A. Lysaght*, J. S. Parker, H. W. van der Hart, and K. T. Taylor

  • Centre for Theoretical Atomic, Molecular and Optical Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom

  • *Present address: Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK.
  • h.vanderhart@qub.ac.uk

Article Text

Click to Expand

References

Click to Expand
Issue

Vol. 84, Iss. 6 — December 2011

Reuse & Permissions
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Reuse & Permissions

It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 3.0 License. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

×

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×