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

Intense ultrashort light pulses comprising merely a few wave cycles became routinely
available by the turn of the millennium. The technologies underlying their production and …

The concerted motion of two or more bound electrons governs atomic and molecular, non-
equilibrium processes including chemical reactions, and hence there is much interest in …

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 review recent advances in attosecond science; particular attention is devoted to the
generation, temporal characterization and applications of isolated attosecond pulses. After a …

Probing and controlling electrons and nuclei in matter at the attosecond timescale became
possible with the generation of attosecond pulses by few-cycle intense lasers, and has …

We have measured two-dimensional photoelectron momentum spectra of Ne, Ar, and Xe
generated by 800-nm, 100-fs laser pulses and succeeded in identifying the spectral ridge …

We present a theoretical study of the photoelectron attosecond beating due to interference of
two-photon transitions in the presence of autoionizing states. We show that, as a harmonic …

Helium atoms in the presence of extreme ultraviolet light pulses can lose electrons through
direct photoionization or through two-electron excitation followed by autoionization. Here we …

High-harmonic generation from a gas target exhibits sharp spectral features and rapid
phase variation near the Cooper minimum. By applying spectral filtering, shaped isolated …