- View accepted manuscript: Attosecond strobing of two-surface population dynamics in dissociating H₂+ (PDF, 897 KB)
|DOI||Resolve DOI: https://doi.org/10.1103/PhysRevLett.98.073003|
|Author||Search for: Staudte, A.1; Search for: Pavičić, D.1; Search for: Chelkowski, S.; Search for: Zeidler, D.1; Search for: Meckel, M.; Search for: Niikura, H.1; Search for: Schöffler, M.; Search for: Schössler, S.; Search for: Ulrich, B.; Search for: Rajeev, P. P.1; Search for: Weber, Th.; Search for: Jahnke, T.; Search for: Villeneuve, D. M.1; Search for: Bandrauk, A. D.; Search for: Cocke, C. L.; Search for: Corkum, P. B.1; Search for: Dörner, R.|
- National Research Council of Canada
|Subject||Dissociation; Ions; Kinetic energy; Laser pulses; Light modulation; Surface phenomena; Attosecond strobing; Correlated ions; Infrared laser pulses; Population dynamics; Hydrogen|
Using H2+ and D2+, we observe two-surface population dynamics by measuring the kinetic energy of the correlated ions that are created when H2+ (D2+) ionize in short (40-140 fs) and intense (1014W/cm2) infrared laser pulses. Experimentally, we find a modulation of the kinetic energy spectrum of the correlated fragments. The spectral progression arises from a hitherto unexpected spatial modulation on the excited state population, revealed by Coulomb explosion. By solving the two-level time-dependent Schrödinger equation, we show that an interference between the net-two-photon and the one-photon transition creates localized electrons which subsequently ionize. © 2007 The American Physical Society.
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