Attosecond control of dissociative ionization of O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mrow/><mml:mn>2</mml:mn></mml:msub></mml:math>molecules
Physical Review APublished 14 December 2011Open access
W. Siu, F. Kelkensberg, G. Gademann, Arnaud Rouzée, P. Johnsson, D. Dowek
Citations69
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Abstract
We demonstrate that dissociative ionization of O 2 can be controlled by the relative delay between an attosecond pulse train (APT) and a copropagating infrared (IR) field. Our experiments reveal a dependence of both the branching ratios between a range of electronic states and the fragment angular distributions on the extreme ultraviolet (XUV) to IR time delay. The observations go beyond adiabatic propagation of dissociative wave packets on IR-induced quasistatic potential energy curves and are understood in terms of an IR-induced coupling between electronic states in the molecular ion. © 2011 American Physical Society.
Keywords
Physics and Astronomy
Molecular Spectra and Molecular Structure
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