  Here we present a systematic study of the dynamics of a single quantum
emitter near a flat metal-dielectric interface. We identify the key elements
that determine the onset of reversibility in these systems by using a formalism
suited for absorbing media and through an exact integration of the dynamics.
Moreover, when the quantum emitter separation from the surface is small, we are
able to describe the dynamics within a pseudomode description that yields
analytical understanding and allows more powerful calculations.
