Enhanced high harmonic generation from multiply ionized argon above 500eV through laser pulse self-compression

P. Arpin*, T. Popmintchev, N. L. Wagner, A. L. Lytle, O. Cohen, H. C. Kapteyn, M. M. Murnane

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

By combining laser pulse self-compression and high harmonic generation within a single waveguide, we demonstrate high harmonic emission from multiply charged ions for the first time. This approach enhances the laser intensity and counteracts ionization-induced defocusing, extending the cutoff photon energy in argon above 500eV for the first time, with higher spectral intensity and cutoff energy than He for the same input laser parameters. This Letter demonstrates a pathway for extending high harmonic emission to very high photon energies using large, multiply charged, ions with high ionization potentials.

Original languageEnglish
Article number143901
JournalPhysical Review Letters
Volume103
Issue number14
DOIs
StatePublished - 2009
Externally publishedYes

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