The control of the dispersion of Localized Surface Plasmons (LSPs) on metallic nano-structures may strengthen their potential applicability to a large variety of fields from Physics to Biology. A possible way to reach this goal consists in designing their surrounding local density of electromagnetic states to engineer their spectral response.

In this talk, I will present a numerical and experimental study of a metamaterial formed by an array of metal nanoparticles coupled to a flat metal layer supporting a Surface plasmon Polariton mode (SPP). Such coupled systems feature multiple resonances which can be tuned. On this basis, a novel strategy where localized and extended surface plasmons are combined is achievable to maximize the fluorescence transmission through a metallic film. It will be shown that the use resonant gold nanoparticles can be engineered to make the metal film, in a specific direction and for a given wavelength, 100% transmissive.


Wednesday, 18th of July, 17:00h. Conference Room