Gold Nanoparticle Plasmon Resonance

The calculation method relies on a plasmonic characteristic polynomial derived in: "I. Tredhaku, A. Sánchez-Iglesias, I. Petranović, M. Grzelczak, J. Sancho-Parramon, and S. A. Mezzasalma, “Geometro-optical depolarization manifold as an organizing principle for plasmonic transitions,” Phys. Rev. A, DOI: 10.1103/718h-fn18. (To be published)" .