Delay in Photoemission (original) (raw)
NASA/ADS
;
- 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.
Abstract
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 21±5 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.
Publication:
Science
Pub Date:
June 2010
DOI:
Bibcode:
Keywords:
- PHYSICS