Hierarchical resonators in quantum spin Hall lattices replicate the fundamental topological mode n-fold in frequency while preserving its spatial profile and suppressing crosstalk.
Journal of Applied Physics129(3), 035102 (2021) https://doi
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Analytical expressions and existence criteria for higher-order topological corner and edge states in two-dimensional kagome and square grid-like beam frames are presented.
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N-fold topological mode replication in hierarchical honeycomb lattices
Hierarchical resonators in quantum spin Hall lattices replicate the fundamental topological mode n-fold in frequency while preserving its spatial profile and suppressing crosstalk.
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Higher-order topological corner states and edge states in grid-like frames
Analytical expressions and existence criteria for higher-order topological corner and edge states in two-dimensional kagome and square grid-like beam frames are presented.