The history and current status of the Keldysh theory of strong field ionization are reviewed.
The focus is on the fundamentals of the theory, its most important applications and those …

Photoelectron holography constitutes a powerful tool for the ultrafast imaging of matter, as it
combines high electron currents with subfemtosecond resolution, and gives information …

Attosecond science is based on steering electrons with the electric field of well controlled
femtosecond laser pulses. It has led to the generation of extreme-ultraviolet pulses with a …

Experiments on atoms in intense laser pulses and the corresponding exact ab initio
solutions of the time-dependent Schrödinger equation (TDSE) yield photoelectron spectra …

A review is presented of the rescattering plateau in laser-induced above-threshold ionization
and its various features as they were discovered over time. Several theoretical explanations …

The velocity map recorded in above-threshold ionization of xenon at 800 nm exhibits a
distinct carpetlike pattern of maxima and minima for emission in the direction approximately …

We perform a detailed analysis of how the interplay between the residual binding potential
and a strong laser field influences above-threshold ionization (ATI), employing a …

We investigate plateau and cutoff structures in photoelectron spectra from nanoscale metal
tips interacting with few-cycle near-infrared laser pulses. These hallmarks of electron …

A calculation of the second-order (rescattering) term in the S-matrix expansion of above-
threshold ionization is presented for the case when the binding potential is the unscreened …

Detachment of electrons from negative ions by the ultrashort few-cycle laser pulses in the
near-infrared spectral region is investigated using a theory based on the strong-field …