Generation of broad XUV continuous high harmonic spectra and isolated attosecond pulses with intense mid-infrared lasers

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DOIResolve DOI: http://doi.org/10.1088/0953-4075/45/1/011001
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TypeArticle
Journal titleJournal of Physics B : Atomic, Molecular and Optical Physics
Volume45
Issue1
Article number011001
Pages16; # of pages: 6
AbstractWe present experimental results showing the appearance of a near-continuum in the high-order harmonic generation spectra of atomic and molecular species as the driving laser intensity of a mid-infrared pulse increases. Detailed macroscopic simulations reveal that these near-continuum spectra are capable of producing isolated attosecond pulses (IAPs) in the far field if a proper spatial filter is applied. Further, our simulations show that the near-continuum spectra and the IAPs are a product of the strong temporal and spatial reshaping (blue shift and defocusing) of the driving field. This offers a possibility of producing IAPs with a broad range of photon energy, including plateau harmonics, by mid-IR laser pulses even without carrier-envelope phase stabilization.
Publication date
PublisherIOP Publishing
LanguageEnglish
AffiliationNRC Steacie Institute for Molecular Sciences; National Research Council Canada
Peer reviewedYes
NPARC number21268084
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Record identifiera65e09e5-5cfb-4e8b-aa59-1eb440537450
Record created2013-04-08
Record modified2016-05-09
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