The multielectron ionization dynamics underlying attosecond strong-field spectroscopies

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DOIResolve DOI: http://doi.org/10.1126/science.1212896
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TypeArticle
Journal titleScience
ISSN0036-8075
Volume335
Issue6074
Pages13361340; # of pages: 5
Subjecthydrocarbon; electron; hydrocarbon; ionization; spectroscopy; timescale; absorption; absorption spectroscopy; article; chemical structure; electron; geometry; ionization; laser; multielectron ionization dynamics; photon; priority journal; spectroscopy
AbstractSubcycle strong-field ionization (SFI) underlies many emerging spectroscopic probes of atomic or molecular attosecond electronic dynamics. Extending methods such as attosecond high harmonic generation spectroscopy to complex polyatomic molecules requires an understanding of multielectronic excitations, already hinted at by theoretical modeling of experiments on atoms, diatomics, and triatomics. Here, we present a direct method which, independent of theory, experimentally probes the participation of multiple electronic continua in the SFI dynamics of polyatomic molecules. We use saturated (n-butane) and unsaturated (1,3-butadiene) linear hydrocarbons to show how subcycle SFI of polyatomics can be directly resolved into its distinct electronic-continuum channels by above-threshold ionization photoelectron spectroscopy. Our approach makes use of photoelectron-photofragment coincidences, suiting broad classes of polyatomic molecules.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Steacie Institute for Molecular Sciences (SIMS-ISSM)
Peer reviewedYes
NPARC number21269396
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Record identifierac273dda-8290-48f8-a5a0-6deb7e395b38
Record created2013-12-12
Record modified2016-05-09
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