Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

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

Tunnelling is one of the most characteristic phenomena of quantum physics, underlying
processes such as photosynthesis and nuclear fusion, as well as devices ranging from …

The tunnelling of a particle through a potential barrier is a key feature of quantum mechanics
that goes to the core of wave–particle duality. The phenomenon has no counterpart in …

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 …

Resolving in time the dynamics of light absorption by atoms and molecules, and the
electronic rearrangement this induces, is among the most challenging goals of attosecond …

The first hundred attoseconds of the electron dynamics during strong field tunneling
ionization are investigated. We quantify theoretically how the electron's classical trajectories …

Since 2001 and the first demonstrations of the feasibility of generating and measuring
attosecond light pulses, attosecond science has developed into a very active and quickly …

Time delays of electrons emitted from an isotropic initial state with the absorption of a single
photon and leaving behind an isotropic ion are angle independent. Using an interferometric …

We determine the ionization time in tunneling ionization by an elliptically polarized light
pulse relative to its maximum. This is achieved by a full quantum propagation of the electron …