Design of pure and hybrid corner states in all-dielectric second-order photonic topological insulators
Fengfu Shen
Abstract:The groundbreaking discovery of high-order topological insulators has opened the avenues for exploring complex topological states, especially the corner states. Typically, corner states undergo hybridization because of point-group symmetry, leading to degeneracy that has yet to be thoroughly investigated in the realm of higher-order topological states. In this study, we introduce a straightforward yet effective photonic crystal design that facilitates the realization of robust photonic corner states and their … Show more
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