Core Concepts
Introducing a second layer to valley photonic crystals enables significant control over their band structures and topological properties, leading to distinct phenomena compared to monolayer systems, as demonstrated by experimental measurements of band dispersions and edge modes in mirror-symmetric and inversion-symmetric bilayer configurations.
Guo, X.-F., Liu, J.-W., Chen, H.-X., Shi, F.-L., Chen, X.-D., & Dong, J.-W. (Year). Experimental probe of band structures of bilayer valley photonic crystals.
This study experimentally investigates the impact of adding a second layer to valley photonic crystals (VPCs), focusing on the evolution of band structures and the emergence of distinct topological properties in bilayer configurations.