Electrodynamics at a metal surface. III. Reflectance and the photoelectron yield of a thin slab

We use a jellium model with an infinite barrier to minic the dielectric bahavior of a thin slab of a free electron metal. The model includes spatial dispersion (nonlocality) and allows the dielectric response to vary continuously across the interface. We compute the reflectance and the photoelectron yield as functions of frequency, film thickness, and electron mean free path.