A surfacePlasmon resonator is a device used in the development of new material, for instance in thin films, which is said to have the potential to increase the transmission of electrical signals.
Surfaceplasmonresonance (SPR) is used to detect the interaction of two different molecules in which one is mobile and one is fixed on a thin gold film and to study molecular interactions. The technology finds application in drug discovery, material science, and biosensors.