Remote surface-enhanced Raman spectroscopy (SERS) consists of using metallic nanowaveguides supporting propagating surface plasmon polaritons (SPPs) to perform SERS at a distant location different to the one of the incident laser.
Propagating SPPs supported by nanowires has been used to show the remote excitation., as well as the remote detection of SERS. A silver nanowire was also used to show remote excitation and detection using graphene as Raman scatterer
Applications
Different plasmonic systems have already been used to show Raman detection of biomolecules in vivo in cells and remote excitation of surface catalytic reactions.