Retrieval of the amplitude and phase of the dipole matrix element by attosecond electron-wave-packet interferometry

Alexis Chacon, Manfred Lein, and Camilo Ruiz
Phys. Rev. A 87, 023408 – Published 13 February 2013

Abstract

We extend the ideas of wave-packet interferometry [Remetter et al., Nat. Phys. 2, 323 (2006)] to implement the algorithm of spectral phase interferometry for direct electric-field reconstruction (SPIDER) for characterizing the amplitude and phase of electron wave packets. Single-photon ionization by an attosecond pulse launches an electron wave packet in the continuum. Ionization by a train of two attosecond pulses in the presence of a moderate infrared pulse creates an interferogram in the final photoelectron momentum distribution. From the interferogram, the complex electron wave function can be reconstructed. If the pulses are well characterized, the amplitude and phase of the bound-free dipole matrix element can be reconstructed over a wide energy range. This is demonstrated by application of the retrieval method to momentum distributions obtained by numerical solution of the time-dependent Schrödinger equation. The case of Coulombic potentials requires appropriate treatment of the laser-Coulomb coupled dynamics.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 28 October 2012

DOI:https://doi.org/10.1103/PhysRevA.87.023408

©2013 American Physical Society

Authors & Affiliations

Alexis Chacon1, Manfred Lein2, and Camilo Ruiz3

  • 1Departamento de Física Aplicada, Universidad de Salamanca, Spain
  • 2Institut für Theoretische Physik and Centre for Quantum Engineering and Space-Time Research (QUEST), Leibniz Universität Hannover, Appelstraße 2, D-30167 Hannover, Germany
  • 3Centro de Láseres Pulsados, CLPU, Parque Científico, 37185 Villamayor, Salamanca, Spain

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 87, Iss. 2 — February 2013

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

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×