The relaxation dynamics of superexcited superfluid He nanodroplets is fully unravelled by means of extreme-ultraviolet (XUV) femtosecond electron and ion spectroscopy complemented by time-dependent density functional theory (TDDFT). Three main...
2160-3308=20=10(3)=031070(14) 031070-1 Published by the American Physical Society involving absorption and emission of an infrared photon is extracted. Our method can be used for extraction of a phase difference between single-photon and two-photon pathways and provides a new tool for attosecond science, which is complementary to RABBITT.
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