Figure 4: Bulk band structures and measured transmissions of PTI and POI.
From: Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide
(a,c) Measured transmission spectrum of the PTI along ΓM/ΓK direction. (b) Calculated band structure of the PTI. Black frames in the insets of b,e outline the single-layer cell, which is repeated six times in the z direction. (d–f) Results for POI.
