Controlling attosecond angular streaking with second harmonic radiation

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DOIResolve DOI: https://doi.org/10.1364/OL.40.001768
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  1. National Research Council of Canada
FormatText, Article
Journal titleOptics Letters
ISSN0146-9592
1539-4794
Volume40
Issue8
Pages1768–1770
Abstract
High harmonic generation, which produces a coherent burst of radiation every half cycle of the driving field, has been combined with ultrafast wavefront rotation to create a series of spatially separated attosecond pulses, called the attosecond lighthouse. By adding a coherent second harmonic beam with polarization parallel to the fundamental, we decrease the generating frequency from twice per optical cycle to once. The increased temporal separation increases the pulse contrast. By scanning the carrier envelope phase, we see that the signal is 2π periodic.
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LanguageEnglish
Peer reviewedYes
NPARC number21276359
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