The influence of plasma defocusing in high harmonic generation | Zendy

Chien-Jen Lai | Zendy; Franz X. Kärtner | Zendy

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The influence of plasma defocusing in high harmonic generation

Author(s) -

Chien-Jen Lai,

Franz X. Kärtner

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.022377

Subject(s) - high harmonic generation , physics , plasma , wavelength , optics , harmonic , scaling , ionization , phase matching , computational physics , laser , quantum mechanics , ion , geometry , mathematics

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.

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