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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 23 — Nov. 7, 2011
  • pp: 22377–22387

The influence of plasma defocusing in high harmonic generation

Chien-Jen Lai and Franz X. Kärtner  »View Author Affiliations

Optics Express, Vol. 19, Issue 23, pp. 22377-22387 (2011)

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We numerically investigate the influence of plasma defocusing in high harmonic generation (HHG) by solving the first-order wave equation in an ionized medium and defining an enhancement factor to quantitatively analyze the influence of plasma defocusing. While degrading the driver pulse intensity, plasma also has a strong impact on HHG phase-matching. Combined with the HHG wavelength scaling law, our results give an estimate of HHG efficiencies with different driver wavelengths and show a limited HHG efficiency in high density media.

© 2011 OSA

OCIS Codes
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Atomic and Molecular Physics

Original Manuscript: August 19, 2011
Revised Manuscript: October 3, 2011
Manuscript Accepted: October 8, 2011
Published: October 24, 2011

Chien-Jen Lai and Franz X. Kärtner, "The influence of plasma defocusing in high harmonic generation," Opt. Express 19, 22377-22387 (2011)

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