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Two-color Time-resolved Spectroscopy of Helium Using High-order Harmonics

Publiceringsår: 1995
Språk: Engelska
Publikation/Tidskrift/Serie: Journal of Physics B-atomic Molecular and Optical Physics
Volym: 28
Nummer: 3
Dokumenttyp: Artikel

Sammanfattning

The radiative lifetime of the 1s2p(1)P state of helium is measured in a two-colour ionization experiment with a 5% accuracy. The state is excited by the 13th harmonic of a tunable 80 ps laser and ionized by a synchronous ultraviolet laser, with a variable time delay. This experiment demonstrates that the high harmonics generated in a jet of rare gas exposed to an intense laser field provide a tunable short-pulse xuv source ideally suited for pump/probe type of studies and, in particular, short lifetime measurements.

Disputation

Nyckelord

  • Physics and Astronomy

Övrigt

Published
Yes
  • ISSN: 0953-4075

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