Shape Plasmonics and Geometric Eigenvalues: The Crystal Field Plasmon Splitting in a Sphere-to-Cube Continuous Transition

Stefano Antonio Mezzasalma, Marek Grzelczak, Jordi Sancho-Parramon

A smooth sphere-to-cube transition is experimentally, computationally and theoretically studied in plasmonic Au nanoparticles, including retardation effects. Localized surface plas…