Study of Plasmonic Resonances on Platonic Solids
Research output: Contribution to journal › Article
In this study we discuss the plasmonic subwavelength scattering resonances of five regular polyhedra, that is, the Platonic solids tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron. A brief discussion regarding their geometrical characteristics and the numerical method used in the study is given. All results are compared with the benchmark case of a sphere, in order to observe how the geometry of the solid affects the spectral characteristics. The principal finding is that the shift of the main dipole resonance exhibits a solid vertex hierarchical order; in other words, the position of the resonance correlates with the solid angle of the vertex of the given solid. This is in contrast with the hedra-hierarchical order found for the electrostatic dielectric response of these solids. These results can create new avenues for applications and devices that require plasmonic particles with on-demand functionalities.
|Number of pages||8|
|Early online date||2017|
|Publication status||Published - Dec 2017|
|MoE publication type||A1 Journal article-refereed|
- Plasmonic albedo, Plasmonic nanoparticles, Platonic solids, Scattering, Surface integral equations, Vertex