Photoelectron spectroscopy of two-photon ionisation of rare-gas atoms by multiple high order harmonics

K. Furusawa, T. Okino, T. Shimizu, H. Hasegawa, Y. Nabekawa, K. Yamanouchi, K. Midorikawa

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Two-photon ionisation processes of rare-gas atoms produced by a superposition of multiple high order harmonics are studied by using a photoelectron spectroscopy technique. Second-order nonlinearity is confirmed by comparing the intensity-dependent photoelectron yields between the linear and nonlinear processes, and the cross sections of these processes are estimated. We also demonstrate the autocorrelation measurement of harmonic envelopes as a preliminary step toward characterisation of an attosecond pulse train.

Original languageEnglish
Pages (from-to)203-211
Number of pages9
JournalApplied Physics B: Lasers and Optics
Volume83
Issue number2
DOIs
Publication statusPublished - 2006 May 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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