Fig. 1. Band structure and edge states of magneto optic PCs

Fig. 2. Quantum spin Hall PC realized by bianisotropic materials or all-dielectric materials

Fig. 3. Band structure and edge states of VPCs，and experimental realization of VPCs in various bands

Fig. 4. Anti scattering propagation realized by TPCs

Fig. 5. Passive devices realized by TPCs

Fig. 6. Active devices and optics quantum devices realized by TPCs