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

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

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

Scanning transmission electron microscopy (STEM) excels in accessing atomic-scale
structure and chemistry. Enhancing our ability to directly image the functionalities of local …

We demonstrate the quantized transfer of photon energy and transverse momentum to a
high-coherence electron beam. In an ultrafast transmission electron microscope, a three …

As a primary energy source, electricity drives broad fields from everyday electronic circuits to
industrial chemical catalysis. From a chemistry viewpoint, studying electric field effects on …

In electron microscopy, detailed insights into nanoscale optical properties of materials are
gained by spontaneous inelastic scattering leading to electron-energy loss and …

Advances in the ability to manipulate free-electron phase profiles within the electron
microscope have spurred development of quantum-mechanical descriptions of electron …

We demonstrate a template-assisted colloidal self-assembly approach for magnetic
metasurfaces on macroscopic areas. The choice of anisotropic colloidal particle geometry …

Chains of metallic nanoparticles sustain strongly confined surface plasmons with relatively
low dielectric losses. To exploit these properties in applications, such as waveguides, the …