Thorsten Uphues

TL;DR: The ability to obtain direct time-domain access to charge dynamics with attosecond resolution by probing photoelectron emission from single-crystal tungsten is demonstrated and illustrates thatAttosecond metrology constitutes a powerful tool for exploring not only gas-phase systems, but also fundamental electronic processes occurring on the attose Cond timescale in condensed-matter systems and on surfaces.

TL;DR: The real-time observation of this most elementary step in strong-field interactions: light-induced electron tunnelling is reported, and the process is found to deplete atomic bound states in sharp steps lasting several hundred attoseconds, suggesting a new technique, attose Cond Tunnelling, for probing short-lived, transient states of atoms or molecules with high temporal resolution.

TL;DR: It is demonstrated how the subcycle evolution of the electric field of light can be used to control the motion of bound electrons and provides evidence of its usefulness in controlling reaction dynamics.

TL;DR: An interferometric pump-probe technique that uses a free WP as a reference to measure a bound WP and analysis of the interferogram allows us to determine the bound WP components with a spectral resolution much better than the inverse of the AP duration.

TL;DR: Using a reaction microscope, three-dimensional (3D) electron (and ion) momentum spectra have been recorded for carrier-envelope phase (CEP) stabilized few-cycle as discussed by the authors.