Attosecond strobing of two-surface population dynamics in dissociating H2+

A. Staudte*, D. Pavičić, S. Chelkowski, D. Zeidler, M. Meckel, H. Niikura, M. Schöffler, S. Schössler, B. Ulrich, P. P. Rajeev, Th Weber, T. Jahnke, D. M. Villeneuve, A. D. Bandrauk, C. L. Cocke, P. B. Corkum, R. Dörner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

126 Citations (Scopus)


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.

Original languageEnglish
Article number073003
JournalPhysical Review Letters
Issue number7
Publication statusPublished - 2007 Feb 14
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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