Highly degenerate photonic flat bands arising from complete graph configurations
Highly degenerate photonic flat bands arising from complete graph configurations
Inspired by complete graph theory, we demonstrate that a metallic claw ``meta-atom'' structure can carry a high number of nearly degenerate resonant modes. A photonic metacrystal composed of a lattice of such meta-atoms exhibits a large number of flat bands that are squeezed into a narrow frequency window, and these …