6533b86dfe1ef96bd12c944c

RESEARCH PRODUCT

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subject

PhysicsField (physics)Electron energy loss spectroscopySurface plasmonPhysics::OpticsGeneral Physics and AstronomyPropagatorCathodoluminescence02 engineering and technologyElectron021001 nanoscience & nanotechnology01 natural sciencesComputational physicsExcited state0103 physical sciencesAtomic physics010306 general physics0210 nano-technologyPlasmon

description

We present a unified framework for the description of the interaction of fast electrons with complex nanostructures based on the Green dyadic method. We show that the computation of a generalized field propagator yields the electron energy losses and cathodoluminescence of nano-objects of arbitrary morphologies embedded in complex dielectric media. Spectra and maps for both penetrating and non-penetrating electron trajectories are provided. This numerical approach can be extended to describe complex experiments involving fast electrons and optically excited nanostructures.