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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Spatiotemporal coupling of attosecond pulses

Author

  • Cord L. Arnold
  • Hampus Wikmark
  • Chen Guo
  • Jan Vogelsang
  • Peter W. Smorenburg
  • Helene Coudert-Alteirac
  • Jan Lahl
  • Jasper Peschel
  • Piotr Rudawski
  • Hugo Dacasa
  • Stefanos Carlstrom
  • Sylvain Maclot
  • Mette B. Gaarde
  • Per Johnsson
  • Anne Lahuillier

Summary, in English

Attosecond pulses in the extreme ultraviolet (XUV) spectral range are today routinely generated via high-order harmonic generation (HHG), when intense ultrashort laser pulses are focused into a gaseous generation medium. The effect is most easily understood in a semi-classical picture [1]. An electron can tunnel ionize from the distorted atomic potential, pick up kinetic energy in the laser field, potentially return to its parent ion and recombine. The excess energy is emitted as XUV photon. The process repeats for every half-cycle of the driving field, resulting in a train of attosecond pulses and in the frequency domain in the well-known, odd-order comb of harmonics. Two main families of electron trajectories leading to the same photon energy can be distinguished into 'short' and 'long', according to their time of travel in the continuum. Due to the complicated nature of the HHG process, attosecond pulses usually cannot be separated into their temporal and spatial profiles, but instead have strong chromatic aberration and are spatio-temporally coupled [2-4].

Department/s

  • Atomic Physics
  • NanoLund
  • MAX IV Laboratory

Publishing year

2019

Language

English

Publication/Series

2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Document type

Conference paper

Publisher

Institute of Electrical and Electronics Engineers Inc.

Topic

  • Atom and Molecular Physics and Optics

Conference name

2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Conference date

2019-06-23 - 2019-06-27

Conference place

Munich, Germany

Status

Published

ISBN/ISSN/Other

  • ISBN: 9781728104690