Interference effects in two-color high-order harmonic generation

Xinkui He, Marcus Dahlström, Rafal Rakowski, C. M. Heyl, Anders Persson, Johan Mauritsson, Anne L'Huillier

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Abstract

We study high-order harmonic generation in argon driven by an intense 800 nm laser field and a small fraction of its second harmonic. The intensity and divergence of the emitted even and odd harmonics are strongly modulated as a function of the relative delay between the two fields. We provide a detailed analysis of the underlying interference effects. The interference changes drastically when approaching the cutoff region due to a switch of the dominant trajectory responsible for harmonic generation.
Original languageEnglish
JournalPhysical Review A (Atomic, Molecular and Optical Physics)
Volume82
Issue number3
DOIs
Publication statusPublished - 2010

Bibliographical note

Copyright 2011 by the American Physical Society

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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