Since the first demonstration of the generation of attosecond pulses (1 as= 10− 18 s) in the
extreme-ultraviolet spectral region, several measurement techniques have been introduced …

The last decade has seen an intense renewed debate on tunnelling time, both from a
theoretical and an experimental perspective. Here, we review recent developments and new …

Attosecond metrology of atoms has accessed the time scale of the most fundamental
processes in quantum mechanics. Transferring the time-resolved photoelectric effect from …

Temporal delays extracted from photoionization phases are currently determined with
attosecond resolution by using interferometric methods. Such methods require special care …

Photoionization of atoms and molecules is one of the fastest processes in nature. The
understanding of the ultrafast temporal dynamics of this process often requires the …

Characterizing time delays in molecular photoionization as a function of the ejected electron
emission direction relative to the orientation of the molecule and the light polarization axis …

Attosecond photoionization time delays reveal information about the potential energy
landscape that an outgoing electron wavepacket probes upon ionization. In this study, we …

In a seminal article, Fano predicts that absorption of light occurs preferably with increase of
angular momentum. We generalize Fano's propensity rule to laser-assisted photoionization …

Imaging in real time the complete dynamics of a process as fundamental as photoemission
has long been out of reach because of the difficulty of combining attosecond temporal …

For over a century since the Nobel prize winning work by Einstein (1905 Ann. Phys. 17 132),
atomic photoionization was thought to be an instantaneous process. Recent experimental …