Investigating Two-Photon Double Ionization of D₂ by XUV-Pump / XUV-Probe Experiments at FLASH

Abstract

Using a novel split-mirror set-up attached to a Reaction Microscope at the Free electron LASer in Hamburg (FLASH) we demonstrate an XUV-pump - XUV-probe (ħω - 38 eV) experiment by tracing the ultra-fast nuclear wave-packet motion in the D2+(1sσg-state) with < 10fs time resolution. Comparison with time-dependent calculations yields excellent agreement with the measured vibrational period of 22±4 fs in D2+, points to the importance of the inter-nuclear distance dependent ionization probability and paves the way to control sequential and non-sequential two-photon double ionization contributions.

Meeting Name

International Conference on Ultrafast Phenomena (2010: Jul. 18-23, Snowmass Village, CO)

Department(s)

Physics

Keywords and Phrases

FEL; X-ray laser; AMO; Reaction microscopes; Two-photon double ionization; Ultra-fast; Wave-packet motion, Experiments; Free electron lasers; Probes; Ultrafast phenomena, Photoionization

International Standard Book Number (ISBN)

978-1557528940

International Standard Serial Number (ISSN)

2162-2701

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 The Optical Society (OSA), All rights reserved.

Publication Date

01 Jul 2010

Link to Full Text

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