Abstract
We study electron momentum vortices in single-photon double ionization of by time-delayed, counter-rotating, elliptically polarized attosecond pulses propagating along either parallel or perpendicular to the molecular axis . For , kinematical vortices occur similar to those found for He. For , we find dynamical vortex structures originating from an ellipticity-dependent interplay of and continuum amplitudes. We propose a complete experiment to determine the magnitudes and relative phase of these amplitudes by varying pulse ellipticities and time delays.
- Received 13 June 2018
DOI:https://doi.org/10.1103/PhysRevA.98.063407
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