Replication data for: Realization of a three-dimensional photonic topological insulator

The band diagrams of the 3D Dirac metamaterial and the 3D photonic topological insulator are numerically simulated with a finite-element method solver (COMSOL Multiphysics RF Module). The simulations of 3D photonic topological insulator surface states are performed in the eigenvalue module of CST Microwave Studio. In these simulations, a vertical domain wall in the middle of a supercell consisting of 16 unit cells is considered. For bulk (surface) band structure calculations, periodic boundary conditions are imposed on all surfaces of the unit cell (supercell) to form an infinite hexagonal (rectangular) lattice.