The influence of a surface or interface on the dynamics of a system can be a key issue in understanding the behavior of e.g. particles in diluted solution, polymer brushes, bulk polymer, etc.

The development of evanescent light scattering methods to be able to do experiments in the vicinity of solid or liquid interfaces has led to the new method "Resonance Enhanced Evanescent Light Scattering", short REDLS. We use here a surface plasmon polarition as the incident field. Thus we gain an orders of magnitude higher sensitivity compared to traditional evanescent light scattering methods working at total internal reflection. We were able to follow the diffusional behavior of particles of radius smaller than 20 nm. Furthermore we study the rotational behavior of particles anisotropic in form or electron density close to solid interfaces.