The transfer of charge at the molecular level plays a fundamental role in many areas of
chemistry, physics, biology and materials science. Today, more than 60 years after the …

The description of the electronic structure of molecules in terms of molecular orbitals is a
highly successful concept in chemistry. However, it commonly fails if the electrons in a …

The ultrafast motion of electrons and holes after light-matter interaction is fundamental to a
broad range of chemical and biophysical processes. We advanced high-harmonic …

Molecular chirality plays an essential role in most biochemical processes. The observation
and quantification of chirality-sensitive signals, however, remains extremely challenging …

We present a computational approach that implements the time-dependent complete-active-
space self-consistent-field method, as introduced in [Phys. Rev. A 88, 023402 (2013)]. Our …

We present the experimental observation of two-center interference in the ionization time
delays of Kr 2. Using attosecond electron-ion-coincidence spectroscopy, we simultaneously …

We report the observation of macroscopic field-free orientation, ie, more than 73% of CO
molecules pointing in the same direction. This is achieved through an all-optical scheme …

All attosecond time-resolved measurements have so far relied on the use of intense near-
infrared laser pulses. In particular, attosecond streaking, laser-induced electron diffraction …

We propose and explore an all-optical technique for ultrafast characterization of electronic
ring currents in atoms and molecules, based on high-harmonic generation (HHG). In our …

High harmonic generation (HHG) spectroscopy has opened up a new frontier in ultrafast
science, where electronic dynamics can be measured on an attosecond time scale. The …