Photoelectron spectroscopy of sequential three-photon double ionization of Ar irradiated by EUV free-electron laser pulses

H. Fukuzawa, E. V. Gryzlova, K. Motomura, A. Yamada, K. Ueda, A. N. Grum-Grzhimailo, S. I. Strakhova, K. Nagaya, A. Sugishima, Y. Mizoguchi, H. Iwayama, M. Yao, N. Saito, P. Piseri, T. Mazza, M. Devetta, M. Coreno, M. Nagasono, K. Tono, M. YabashiT. Ishikawa, H. Ohashi, H. Kimura, T. Togashi, Y. Senba

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Abstract

We have investigated the ionization of the Ar atom by 51 nm extreme-ultraviolet light pulses at the free-electron laser facility, SPring-8 Compact SASE Source test accelerator, in Japan. The angle-resolved photoelectron spectra contain lines due to sequential three-photon double ionization with the second ionization step proceeding via the resonantly enhanced two-photon absorption. The relative intensities of the corresponding photoelectron peaks and their angular dependence are explained in the framework of a three-step model of the process.

Original languageEnglish
Article number111001
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume43
Issue number11
DOIs
Publication statusPublished - 2010 Jun 3

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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    Fukuzawa, H., Gryzlova, E. V., Motomura, K., Yamada, A., Ueda, K., Grum-Grzhimailo, A. N., Strakhova, S. I., Nagaya, K., Sugishima, A., Mizoguchi, Y., Iwayama, H., Yao, M., Saito, N., Piseri, P., Mazza, T., Devetta, M., Coreno, M., Nagasono, M., Tono, K., ... Senba, Y. (2010). Photoelectron spectroscopy of sequential three-photon double ionization of Ar irradiated by EUV free-electron laser pulses. Journal of Physics B: Atomic, Molecular and Optical Physics, 43(11), [111001]. https://doi.org/10.1088/0953-4075/43/11/111001