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 …

Short, intense laser pulses can be used to access the transition regime between classical
and quantum optical responses in dielectrics. In this regime, the relative roles of inter-and …

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 …

In ultrafast spectroscopy, the temporal resolution of time-resolved experiments depends on
the duration of the pump and probe pulses, and on the control and characterization of their …

We photoionize nitrogen molecules with a train of extreme ultraviolet attosecond pulses
together with a weak infrared field. We measure the phase of the two-color two-photon …

How quanta of energy and charge are transported on both atomic spatial and ultrafast
timescales is at the heart of modern technology. Recent progress in ultrafast spectroscopy …

The long-standing scientific quest of real-time tracing electronic motion and dynamics in all
states of matter has been remarkably benefited by the development of intense laser-based …

Photoionization by an eXtreme UltraViolet (XUV) attosecond pulse train (APT) in the
presence of an infrared pulse (RABBITT method) conveys information about the atomic …

Photoionization as a half-scattering process is not instantaneous. Usually, time delays in
photoionization are on the order of tens of attoseconds. In going from a single atom to a …