Abstract

The manuscript details various simple LCR circuits to explain the experimentally observed surface plasmon resonance behavior of spherical metal nanoparticles. The results of the circuit's performance simulated using standard software like "QUCS" show similarity with SPR results in the literature, thus successfully explaining the size-effect, the influence of the surrounding dielectric medium and the proximity effect of densely packed metal nanoparticles. The study also explains these material dependent observations in terms of circuital parameters. This opens an avenue to detail the exact role of the material parameters in the influence of the surrounding dielectric medium and the proximity effect.

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