A. Sommer

TL;DR: The ultrafast reversibility of the effects implies that the physical properties of a dielectric can be controlled with the electric field of light, offering the potential for petahertz-bandwidth signal manipulation.

TL;DR: In this article, the photon-energy-dependent emission timing of electrons, released from the helium ground state by an extreme-ultraviolet photon, either leaving the ion in its ground state or exciting it into a shake-up state.

TL;DR: It is demonstrated that attosecond metrology extends the resolution to petahertz frequencies of visible light and Quantitative determination of dissipation within a signal manipulation cycle of only a few femtoseconds duration reveals the feasibility of dielectric optical switching at clock rates above 100 teraherz.

TL;DR: Waveform-controlled laser pulses with 1 mJ pulse energy and a full-width-half-maximum duration of ∼4 fs are demonstrated, therefore lasting less than two cycles of the electric field oscillating at their carrier frequency.

TL;DR: A novel concept for octave spanning dispersive mirrors with low spectral dispersion oscillations is presented and the group delay dispersion (GDD) of a pulse reflected on a wedge dispersive mirror is nearly free of oscillations.