Relaxation of the deeply excited atomic shell often involves a cascade of multi-electron processes in a complex sequence of successive events. Detection of the charge state of ions created from such relaxation after excitation with an attosecond XUV pulse and forced ionization in a strong laser field is shown to capture details of this dynamics with attosecond precision. In contrast to studies in the energy-domain, this approach delivers a direct view at the evolution and natural order of these events. |
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