Electron energy loss in a planar surface: Parallel trajectory
  
Electron energy loss (EELS) for an electron moving parallel to a planar surface.
See details of the theory in   F. J. García de Abajo, Rev. Mod. Phys. 82, 209 (2010).

Dielectric function ε(ω)

For Drude:
ε(ω)=1-ωp2/ω(ω+iη)
ωp (eV) =
η (eV) =

Geometry under consideration
Geometry under
consideration

Trajectory Electron energy E0 (keV) =
b (nm) =
Energy loss range ωmin(eV) =     ωmax(eV) =