Figure 4
From: Meta-Optical Chirality and Emergent Eigen-polarization Modes via Plasmon Interactions

Eigen-polarization modes of the system at 660 nm are shown on (a), the Poincaré sphere, where solid circles represent eigen-polarization states on the near surface of the sphere and hollow circles represent states on the far surface. (b) illustrates the eigen-polarization states measured in the x − y plane.