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Delay in Photoemission

Photoemission from atoms is assumed to occur instantly in response to incident radiation and provides the basis for setting the zero of time in clocking atomic-scale electron motion. We used attosecond metrology to reveal a delay of [Formula: see text] attoseconds in the emission of electrons libera...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2010-06, Vol.328 (5986), p.1658-1662
Main Authors: Schultze, M, Fiess, M, Karpowicz, N, Gagnon, J, Korbman, M, Hofstetter, M, Neppl, S, Cavalieri, A.L, Komninos, Y, Mercouris, Th, Nicolaides, C.A, Pazourek, R, Nagele, S, Feist, J, Burgdörfer, J, Azzeer, A.M, Ernstorfer, R, Kienberger, R, Kleineberg, U, Goulielmakis, E, Krausz, F, Yakovlev, V.S
Format: Article
Language:English
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Summary:Photoemission from atoms is assumed to occur instantly in response to incident radiation and provides the basis for setting the zero of time in clocking atomic-scale electron motion. We used attosecond metrology to reveal a delay of [Formula: see text] attoseconds in the emission of electrons liberated from the 2p orbitals of neon atoms with respect to those released from the 2s orbital by the same 100-electron volt light pulse. Small differences in the timing of photoemission from different quantum states provide a probe for modeling many-electron dynamics. Theoretical models refined with the help of attosecond timing metrology may provide insight into electron correlations and allow the setting of the zero of time in atomic-scale chronoscopy with a precision of a few attoseconds.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1189401