Abstract

We used a split-mirror setup attached to a reaction microscope at the free-electron laser in Hamburg (FLASH) to perform an XUV-pump-XUV-probe experiment by tracing the ultrafast nuclear wave-packet motion in the D2 +(1sσg) with <10 fs time resolution. Comparison with time-dependent calculations shows excellent agreement with the measured vibrational period of 22±4 fs in D2+, points to the importance of accurately knowing the internuclear distance-dependent ionization probability, and paves the way to control sequential and nonsequential two-photon double-ionization contributions.

Department(s)

Physics

Keywords and Phrases

Internuclear distances; Ionization probabilities; Nonsequential; Reaction microscopes; Time resolution; Time-dependent; Two photon; Two-photon double ionization; Ultra-fast; Wave-packet motion; Free electron lasers; Mirrors; Particle detectors; Photons; Probes; Pumping (laser); Pumps; Photoionization

International Standard Serial Number (ISSN)

1050-2947

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2010 American Physical Society (APS), All rights reserved.

Included in

Physics Commons

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