Extended Data Fig. 5: BEM electrodynamics simulation.
From: Attosecond electron microscopy by free-electron homodyne detection
a, Top view of the surface mesh used in the BEM simulations. The nanoprism shape is extracted from the dark-field image shown in Extended Data Fig. 3d using a DRLSE algorithm79. b, Magnitude and c, phase of the near-field coupling coefficient g simulated with the experimental parameters of Fig. 4d,e.
