On-chip valley phononic crystal plates with graded topological interface

Jinfeng Zhao,Qi Wang,Xubo Wang,Weitao Yuan, Yao Huang,Shuhan Chen,Antoine Riaud,Jia Zhou

International Journal of Mechanical Sciences（2022）

引用 11|浏览24

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摘要

•On-chip valley phononic crystals with graded topological interfaces are built up.•Gapped feature of graded topological edge states is demonstrated.•Abnormal refraction is observed behind graded topological interfaces.

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关键词

Valley phononic crystal,Graded topological interface,Topological rainbow,Transverse symmetry,Abnormal refraction

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