Toroidal eigenmodes in all-dielectric metamolecules
Toroidal eigenmodes in all-dielectric metamolecules
We present a thorough investigation of the electromagnetic resonant modes supported by systems of polaritonic rods placed at the vertices of canonical polygons. The study is conducted with rigorous finite-element eigenvalue simulations. To provide physical insight, the simulations are complemented with coupled mode theory (the analog of LCAO in molecular …