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

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Abstract

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
Volume98
Issue number7
DOIs
Publication statusPublished - 2007 Feb 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Staudte, A., Pavičić, D., Chelkowski, S., Zeidler, D., Meckel, M., Niikura, H., Schöffler, M., Schössler, S., Ulrich, B., Rajeev, P. P., Weber, T., Jahnke, T., Villeneuve, D. M., Bandrauk, A. D., Cocke, C. L., Corkum, P. B., & Dörner, R. (2007). Attosecond strobing of two-surface population dynamics in dissociating H2+. Physical Review Letters, 98(7), [073003]. https://doi.org/10.1103/PhysRevLett.98.073003