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Anne L'Huillier

Anne l'Huillier

Professor

Anne L'Huillier

Multiple-harmonic generation in rare gases at high laser intensity

Author

  • X. F. Li
  • A. Lhuillier
  • M. Ferray
  • L. A. Lompré
  • G. Mainfray

Summary, in English

We present experimental measurements of vacuum ultraviolet light emission processes in a 15-Torr rare-gas medium exposed to a strong 1064-nm laser field. Apart from a small number of lines which correspond to discrete transitions, and a broad continuum emission, we essentially observe the odd harmonics of the laser field, up to very high order. At a 3×1013 W cm-2 laser intensity, the highest-order harmonics observed are the 33rd in Ar, the 29th in Kr, and the 21st in Xe. The harmonic distribution presents three regions: a steep decrease for the first harmonics, a plateau, and a sudden cutoff at high order. We study the variation of the conversion efficiency for some of the harmonics as a function of the incident laser intensity and the atomic density. Finally, we analyze the harmonic-generation results as thoroughly as possible, in particular, by characterizing the phase-matching conditions in our experiment.

Publishing year

1989-06-01

Language

English

Pages

5751-5761

Publication/Series

Physical Review A

Volume

39

Issue

11

Document type

Journal article

Publisher

American Physical Society

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1050-2947