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Science 14 April 2006:
Vol. 312. no. 5771, pp. 246 - 248
DOI: 10.1126/science.1126259
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Reports

Control of Electron Localization in Molecular Dissociation

M. F. Kling,1 Ch. Siedschlag,1 A. J. Verhoef,2 J. I. Khan,1 M. Schultze,2 Th. Uphues,3 Y. Ni,1 M. Uiberacker,4 M. Drescher,3,5 F. Krausz,2,4 M. J. J. Vrakking1

We demonstrated how the subcycle evolution of the electric field of light can be used to control the motion of bound electrons. Results are presented for the dissociative ionization of deuterium molecules (D2 {Rightarrow} D+ + D), where asymmetric ejection of the ionic fragment reveals that light-driven intramolecular electronic motion before dissociation localizes the electron on one of the two D+ ions in a controlled way. The results extend subfemtosecond electron control to molecules and provide evidence of its usefulness in controlling reaction dynamics.

1 FOM Instituut voor Atoom en Molecuul Fysica (AMOLF), Kruislaan 407, 1098 SJ Amsterdam, Netherlands.
2 Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany.
3 Fakultät für Physik, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany.
4 Department für Physik, Ludwig-Maximilians-Universität München, Am Coulombwall 1, D-85748 Garching, Germany.
5 Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany.

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