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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Anisotropic photoemission time delays close to a Fano resonance

Author

  • Claudio Cirelli
  • Carlos Marante
  • Sebastian Heuser
  • C. L.M. Petersson
  • Álvaro Jiménez Galán
  • Luca Argenti
  • Shiyang Zhong
  • David Busto
  • Marcus Isinger
  • Saikat Nandi
  • Sylvain MacLot
  • Linnea Rading
  • Per Johnsson
  • Mathieu Gisselbrecht
  • Matteo Lucchini
  • Lukas Gallmann
  • J. Marcus Dahlström
  • Eva Lindroth
  • Anne L'Huillier
  • Fernando Martín
  • Ursula Keller

Summary, in English

Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into discrete states present in the spectral continuum of atomic and molecular targets, is mediated by electron correlation. Here we investigate the attosecond photoemission dynamics in argon in the 20-40 eV spectral range, in the vicinity of the 3s-1np autoionizing resonances. We present measurements of the differential photoionization cross section and extract energy and angle-dependent atomic time delays with an attosecond interferometric method. With the support of a theoretical model, we are able to attribute a large part of the measured time delay anisotropy to the presence of autoionizing resonances, which not only distort the phase of the emitted photoelectron wave packet but also introduce an angular dependence.

Department/s

  • Department of Physics

Publishing year

2018-12-01

Language

English

Publication/Series

Nature Communications

Volume

9

Issue

1

Document type

Journal article

Publisher

Nature Publishing Group

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2041-1723