Real-time probing of the electron dynamics of an atom in a strong infrared laser field

Yunpei Deng (邓蕴沛) and Xinhua Xie (谢新华)
Phys. Rev. A 91, 043414 – Published 22 April 2015

Abstract

We present theoretical studies on real-time probing of the electron density evolution of an atom in a strong infrared (IR) laser field with few-cycle near-infrared (NIR) and attosecond extreme-ultraviolet (XUV) pulses. Our results indicate that the electron density near the tunneling barrier is reflected in the additional tunneling ionization yield with a time delayed NIR pulse and the electron density near the nucleus can be probed by the single photoionization yield with a time delayed XUV pulse. It turns out the NIR-probing scheme can be used to study the polarization of the system in an external IR field and the XUV probing can be additionally applied to explore excitation dynamics during and after the IR field interaction.

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  • Received 13 November 2014

DOI:https://doi.org/10.1103/PhysRevA.91.043414

©2015 American Physical Society

Authors & Affiliations

Yunpei Deng (邓蕴沛)1,2,* and Xinhua Xie (谢新华)3,†

  • 1SwissFEL, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
  • 2Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany
  • 3Photonics Institute, Vienna University of Technology, A-1040 Vienna, Austria

  • *yunpei.deng@psi.ch
  • xinhua.xie@tuwien.ac.at

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Issue

Vol. 91, Iss. 4 — April 2015

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