Photonic streaking of attosecond pulse trains

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DOIResolve DOI: http://doi.org/10.1038/nphoton.2013.170
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TypeArticle
Journal titleNature Photonics
ISSN1749-4885
1749-4893
Volume7
Issue8
Pages651656; # of pages: 6
AbstractHigh harmonic radiation, produced when intense laser pulses interact with matter, is composed of a train of attosecond pulses. Individual pulses in this train carry information on ultrafast dynamics that vary from one half-optical-cycle to the next. Here, we demonstrate an all-optical photonic streaking measurement that provides direct experimental access to each attosecond pulse by mapping emission time onto propagation angle. This is achieved by inducing an ultrafast rotation of the instantaneous laser wavefront at the focus. We thus time-resolve attosecond pulse train generation, and hence the dynamics in the nonlinear medium itself. We apply photonic streaking to harmonic generation in gases and directly observe, for the first time, the influence of non-adiabatic electron dynamics and plasma formation on the generated attosecond pulse train. These experimental and numerical results also provide the first evidence of the generation of attosecond lighthouses in gases, which constitute ideal sources for attosecond pump–probe spectroscopy.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; Security and Disruptive Technologies
Peer reviewedYes
Identifiernphoton.2013.170
NPARC number21270337
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Record identifier14e8fa79-d378-404c-89c6-dfd29ec9c12b
Record created2014-01-30
Record modified2016-05-09
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