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Center for Nonlinear Studies |
Plasmonics was born in 1972 with the discovery of surface-enhanced Raman scattering (SERS) from molecules adsorbed on rough metal films and, later, metal nanoparticles supporting surface plasmons. Currently, the list of plasmon-enhanced spectroscopies includes SERS, fluorescence, luminescence, SHG, fluorescence energy transfer (FRET), etc., with numerous applications ranging from biosensing to photovoltaics. The underlying physical process is energy transfer between molecules or semiconductor quantum dots and plasmons in metal nanostructure that results, depending on system parameters, in a giant enhancement of radiation and scattering or in extremely fast energy dissipation. These processes are strongly influenced by quantum-size and screening effects in small nanostructures and by interactions between constituent parts in complex plasmonic systems.
Host: Andrei Piryatinski, T-4