Attosecond science offers formidable tools for the investigation of electronic processes at the
heart of important physical processes in atomic, molecular and solid-state physics. In the last …

Recent advances in the generation of well-characterized subfemtosecond laser pulses have
opened up unpredicted opportunities for the real-time observation of ultrafast electronic …

This paper has been prepared by the Symphony collaboration (University of Warsaw,
Uniwersytet Jagielloński, DESY/CNR and ICFO) on the occasion of the 25th anniversary of …

Photoemission of an electron is commonly treated as a one-particle phenomenon. With
attosecond streaking spectroscopy we observe the breakdown of this single active-electron …

We report measurements of energy-dependent photoionization delays between the two
outermost valence shells of N 2 O and H 2 O. The combination of single-shot signal …

Attosecond science has paved the way for direct probing of electron dynamics in gases and
solids. This review provides an overview of recent attosecond measurements, focusing on …

Even for simple systems, the interpretations of new attosecond measurements are
complicated and provide only a glimpse of their potential. Nonetheless, the lasting impact …

Photoemission spectroscopy is central to understanding the inner workings of condensed
matter, from simple metals and semiconductors to complex materials such as Mott insulators …

Attosecond transient absorption is one of the promising new techniques being developed to
exploit the availability of sub-femtosecond extreme ultraviolet (XUV) pulses to study the …

Attosecond chronoscopy has revealed small but measurable delays in photoionization,
characterized by the ejection of an electron on absorption of a single photon. Ionization …