Figure 3 | Scientific Reports

Figure 3

From: Plasmon resonance of gold and silver nanoparticle arrays in the Kretschmann (attenuated total reflectance) vs. direct incidence configuration

Figure 3

Experimental transmittance spectra compared with computed spectra for (a) Au nanoparticle monolayer, (b) Au nanoparticle bilayer, (c) Ag nanoparticle monolayer, (d) Ag nanoparticle bilayer. The near-field enhancement with respect to the incident field is shown in the inset of each plot. The dimensions for the models were taken from the TEM images (Fig. 2). Au nanoparticle diameter and interparticle gap: 10 nm and 2 nm, Ag nanoparticle diameter and interparticle gap: 20 and 2 nm. The direction of incidence of illumination is normal in all cases.

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