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

The written version of my lecture is a personal reflection on decades of research on electron-
light interactions, culminating in their control and observation in real time at the turn of the …

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 study photoionization of argon atoms excited by attosecond pulses using an
interferometric measurement technique. We measure the difference in time delays between …

This tutorial presents an introduction to the interaction of light and matter on the attosecond
timescale. Our aim is to detail the theoretical description of ultra-short time delays and to …

We study the temporal aspects of laser-assisted extreme ultraviolet (XUV) photoionization
using attosecond pulses of harmonic radiation. The aim of this paper is to establish the …

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

We analyze the time delay between emission of photoelectrons from the outer valence ns
and np subshells in noble gas atoms following absorption of an attosecond extreme …

In this review, we will focus on the theoretical aspects in observing and controlling the
electronic dynamics in few-electron atoms and molecules by attosecond pulses in different …

We present experimental measurements and theoretical calculations of photoionization time
delays from the 3 s and 3 p shells in Ar in the photon energy range of 32–42 eV. The …