Classical effect for enhanced high harmonic yield in ultrashort laser pulses with a moderate laser intensity

@article{Shi2015ClassicalEF,
  title={Classical effect for enhanced high harmonic yield in ultrashort laser pulses with a moderate laser intensity},
  author={Y Z Shi and S. Wang and Fulong Dong and Y. Li and Y. J. Chen},
  journal={Journal of Physics B: Atomic, Molecular and Optical Physics},
  year={2015},
  volume={50}
}
  • Y. Z. ShiS. Wang Y. J. Chen
  • Published 15 September 2015
  • Physics
  • Journal of Physics B: Atomic, Molecular and Optical Physics
We study the influence of pulse duration on high harmonic generation (HHG) by exploring a wide laser-parameter region theoretically. Previous studies have shown that for high laser intensities close to saturation ionization intensity, the HHG inversion efficiency is higher for shorter pulses since the ground-state depletion is weaker in short pulses. Our simulations show that this high efficiency also appears for a moderate laser intensity at which the ionization is not very strong. A classical… 

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