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 …

Progress in electron-beam spectroscopies has recently enabled the study of optical
excitations with combined space, energy and time resolution in the nanometre …

Bombardment of materials by high-energy particles often leads to light emission in a process
known as scintillation. Scintillation has widespread applications in medical imaging, x-ray …

Photonic metasurfaces, that is, two-dimensional arrangements of designed plasmonic or
dielectric resonant scatterers, have been established as a successful concept for controlling …

Single-photon nanoantennas are broadband strongly scattering nanostructures placed in
the near field of a single quantum emitter, with the goal to enhance the coupling between the …

Plasmonic metamaterials are artificially designed materials which exhibit optical properties
that cannot be found in nature. They have unique and special abilities related to …

When impinging on optical structures or passing in their vicinity, free electrons can
spontaneously emit electromagnetic radiation, a phenomenon generally known as …

We theoretically investigate the quantum-coherence properties of the cathodoluminescence
(CL) emission produced by a temporally modulated electron beam. Specifically, we consider …

Cathodoluminescence (CL) is a powerful tool for the investigation of optical properties of
materials. In recent years, its combination with scanning transmission electron microscopy …

Circular polarization of luminescence is a phenomenon that can be observed for chiral
molecules in isotropic solution, for molecular aggregates and molecular materials. Also, the …