Production of surface plasmons in electron emission from Al nanoparticles

• We use the Hamiltonian model to describe the plasmon surface modes in a sphere.
• The plasmon angular frequencies do not depend on the wavenumber k.
• The plasmon production increases as the e-hole pair approaches to the surface.
• It is not possible to distinguish between extrinsic and intrinsic contributions.

In this work we study the surface plasmon generation by a suddenly created electron-hole pair in nanoparticles of spherical shape. We use a previously developed model based on the Hamiltonian formulation for plasmon field.