High-order Harmonic-generation cutoff.

  title={High-order Harmonic-generation cutoff.},
  author={L'huillier and Lewenstein and Sali{\`e}res and Balcou and Izucheev and Larsson and Wahlstroem},
  journal={Physical review. A, Atomic, molecular, and optical physics},
  volume={48 5},
We have experimentally determined the harmonic-generation cutoff as a function of the laser intensity in neon using an intense, short-pulse Ti:sapphire laser. The experimental cutoff is lower than that obtained in single-atom calculations. Using a simple quantum-mechanical approach to harmonic generation valid at high intensity, we show that the difference is due to the effect of propagation. 

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