Second-order topological phases in C 4v -symmetric photonic crystals beyond the two-dimensional Su-Schrieffer–Heeger model

Second-order photonic topological insulators (SPTIs) with topologically protected corner states provide a unique platform for realizing the robust manipulation of light in lower dimensions. Previous SPTIs proposed in C 4v -symmetric lattices are mainly based on the two-dimensional (2D) Su-Schrieffer...

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Hlavní autoři:	Chen Yafeng, Lan Zhihao, Zhu Jie
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	Wiley 2022-03-01
Edice:	Nanophotonics
Témata:	inverse design odd-order band gap photonic crystal second-order topological insulators
On-line přístup:	https://doi.org/10.1515/nanoph-2021-0762
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