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Fig. 7

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(a) Simulated spectral response for nanostructure diameters ranging from 500 to 900 nm of the AuFON system, with TM polarization, θ = 25°, and ϕ = 0°. The curves are vertically shifted by 0.5 for clarity. (b) Resonance wavelength vs. nanostructure diameter for the LSPR1 and LSPR2 modes, with TM and TE polarizations, θ = 25°, and ϕ = 0°. (c) Spatial distribution of the electric field for the resonant modes LSPR1 and LSPR2, for a 500 nm diameter AuFON sample, θ = 25°, ϕ = 0° and TM polarization. In the case of TE polarization, the spatial distribution was similar to that of TM polarization.

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