Interactions between light and matter play an instrumental role in spectroscopy, sensing,
quantum information processing and lasers. In most of these applications, light is considered …

Free electron beams such as those employed in electron microscopes have evolved into
powerful tools to investigate photonic nanostructures with an unrivaled combination of …

Spatiotemporal sculpturing of light pulse with ultimately sophisticated structures represents a
major goal of the everlasting pursue of ultra-fast information transmission and processing as …

Quantum light–matter interactions of bound electron systems have been studied extensively.
By contrast, quantum interactions of free electrons with light have only become accessible in …

The terahertz gap is a region of the electromagnetic spectrum where high average and peak
power radiation sources are scarce while at the same time scientific and industrial …

Intense attosecond X-ray pulses are key for ultrafast nonlinear spectroscopy and diffractive
imaging. Here we demonstrate the generation of terawatt-scale isolated attosecond pulses …

The use of particle accelerators as photon sources has enabled advances in science and
technology. Currently the workhorses of such sources are storage-ring-based synchrotron …

Integrated photonics facilitates extensive control over fundamental light–matter interactions
in manifold quantum systems including atoms, trapped ions,, quantum dots and defect …

For over 80 years of research, the conventional description of free-electron radiation
phenomena, such as Cherenkov radiation, has remained unchanged: classical three …

Dielectric laser accelerators (DLAs) are fundamentally based on the interaction of photons
with free electrons, where energy and momentum conservation are satisfied by mediation of …