11 papers
Studying electron beam coherence using plasmon interference
Evelijn Akerboom, F. Javier García de Abajo, Albert Polman
Energetic electrons create distinct cathodoluminescence (CL) angular distributions upon interaction with dielectric and plasmonic nanostructures, providing valuable information on…
Revealing time characteristics of optical excitations in dielectric and plasmonic structures through cathodoluminescence interferometry
Evelijn Akerboom, Hirohsi Sugimoto, Minoru Fujii +5
Cathodoluminescence (CL) spectroscopy provides access to optical excitations with nanometer spatial resolution, but direct time-resolved measurements of optical resonances remain c…
Thermal vacuum friction of objects with different dimensionality
Gor Chalyan, F. Javier GarcÃa de Abajo
Radiative forces acting on neutral bodies moving through a thermal bath represent a unique manifestation of the interplay between relativistic kinematics and thermal fluctuations.…
Determining Electron Beam Lateral Coherence in a Scanning Electron Microscope Using Electron Diffraction
Evelijn Akerboom, Fatemeh Kiani, Giulia Tagliabue +4
We develop and characterize scanning transmission electron microscopy (STEM) capabilities within a scanning electron microscope (SEM) to investigate the effective lateral coherence…
Rotational Vacuum Friction of Nonabsorbing Particles
F. Javier GarcÃa de Abajo, Alejandro Manjavacas
A nonabsorbing particle rotating in vacuum can lose angular momentum only by converting mechanical energy into electromagnetic radiation. Here, we develop a quantum theory of rotat…
Free-electron decoherence: Theory and applications
Cruz I. Velasco, Valerio Di Giulio, F. Javier GarcÃa de Abajo
Electron microscopy relies on the spatial coherence of electron beams to generate atomic-scale images using interference and diffraction, which can be degraded by inelastic scatter…