In this work we report on the observation of surface plasmon properties of periodic arrays of
gold nanoring trimers fabricated by electron beam lithography. It is shown that the localized
surface plasmon resonances of such gold ring trimers occur in the infrared spectral region
and are strongly influenced by the nanoring geometry and their relative positions. Based on
numerical simulations of the optical extinction spectra and of the electric near-field intensity
maps, the resonances are assigned to surface plasmon states arising from the strong intra …

In this work we report on the observation of surface plasmon properties of periodic arrays of
gold nanoring trimers fabricated by electron beam lithography. It is shown that the localized
surface plasmon resonances of such gold ring trimers occur in the infrared spectral region
and are strongly influenced by the nanoring geometry and their relative positions. Based on
numerical simulations of the optical extinction spectra and of the electric near-field intensity
maps, the resonances are assigned to surface plasmon states arising from the strong intra …