Attosecond strobing of two-surface population dynamics in dissociating H2
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 (10(14) W/cm2) infrared laser pulses. Experimentally, we find a modulation of the kinetic energy spectrum of th...
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| Veröffentlicht in: | Physical review letters 2007-02, Vol.98 (7), p.073003-073003 |
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| creator | Staudte, A Pavicić, D Chelkowski, S Zeidler, D Meckel, M Niikura, H Schöffler, M Schössler, S Ulrich, B Rajeev, P P Weber, Th Jahnke, T Villeneuve, D M Bandrauk, A D Cocke, C L Corkum, P B Dörner, R |
| description | 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 (10(14) W/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. |
| doi_str_mv | 10.1103/PhysRevLett.98.073003 |
| format | Article |
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| title | Attosecond strobing of two-surface population dynamics in dissociating H2 |
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