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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Attosecond Electron Spectroscopy Using a Novel Interferometric Pump-Probe Technique

Author

  • Johan Mauritsson
  • Thomas Remetter
  • Marko Swoboda
  • Kathrin Klünder
  • Anne L'Huillier
  • K. J. Schafer
  • O. Ghafur
  • F. Kelkensberg
  • W. Siu
  • Per Johnsson
  • M. J. J. Vrakking
  • I. Znakovskaya
  • T. Uphues
  • S. Zherebtsov
  • M. F. Kling
  • F. Lepine
  • E. Benedetti
  • F. Ferrari
  • G. Sansone
  • M. Nisoli

Summary, in English

We present an interferometric pump-probe technique for the characterization of attosecond electron wave packets (WPs) that uses a free WP as a reference to measure a bound WP. We demonstrate our method by exciting helium atoms using an attosecond pulse (AP) with a bandwidth centered near the ionization threshold, thus creating both a bound and a free WP simultaneously. After a variable delay, the bound WP is ionized by a few-cycle infrared laser precisely synchronized to the original AP. By measuring the delay-dependent photoelectron spectrum we obtain an interferogram that contains both quantum beats as well as multipath interference. Analysis of the interferogram allows us to determine the bound WP components with a spectral resolution much better than the inverse of the AP duration.

Department/s

  • Atomic Physics

Publishing year

2010

Language

English

Publication/Series

Physical Review Letters

Volume

105

Issue

5

Document type

Journal article

Publisher

American Physical Society

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1079-7114