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.
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Publication status||Published - 2011 Dec 14|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics