Attosecond metrology

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DOIResolve DOI: http://doi.org/10.1038/35107000
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TypeArticle
Journal titleNature
ISSN0028-0836
Volume414
Issue6863
Pages509513; # of pages: 5
AbstractThe generation of ultrashort pulses is a key to exploring the dynamic behaviour of matter on ever-shorter timescales. Recent developments have pushed the duration of laser pulses close to its natural limit�the wave cycle, which lasts somewhat longer than one femtosecond (1 fs = 10-15 s) in the visible spectral range. Time-resolved measurements with these pulses are able to trace dynamics of molecular structure, but fail to capture electronic processes occurring on an attosecond (1 as = 10-18 s) timescale. Here we trace electronic dynamics with a time resolution of less than or equal to 150 as by using a subfemtosecond soft-X-ray pulse and a few-cycle visible light pulse. Our measurement indicates an attosecond response of the atomic system, a soft-X-ray pulse duration of 650 plusminus 150 as and an attosecond synchronism of the soft-X-ray pulse with the light field. The demonstrated experimental tools and techniques open the door to attosecond spectroscopy of bound electrons.
Publication date
PublisherNature Publishing Group
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
Identifier10084666
NPARC number12328272
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Record identifiere6f7252e-e1ca-48b8-8388-0049e9a1fba5
Record created2009-09-10
Record modified2016-05-09
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