Nonlinear Interaction of Intense Attosecond XUV Pulses with Atoms and Molecules

  • K. Midorikawa
  • T. Shimizu
  • Y. Nabekawa
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 115)

Summary

We have observed nonlinear optical processes such as two-photon double ionization and above threshold ionization of rare gases in the xuv region with intense high-order harmonics. Using two-photon double ionization in He, the pulse width of the 27th (42 eV) harmonic was measured by an autocorrelation technique, and found it to be 8 ns. A train of attosecond pulses was also characterized directly by the energy-resolved autocorrelation of the above threshold ionized electrons.

Keywords

Helium Coherence Autocorrelation Sapphire Dura 

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Copyright information

© Springer 2007

Authors and Affiliations

  • K. Midorikawa
    • 1
  • T. Shimizu
    • 1
  • Y. Nabekawa
    • 1
  1. 1.Laser Technology LaboratoryRIKEN

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