Observations of symmetry-induced topological mode steering in a reconfigurable elastic plate

K. Tang; M. Makwana; R. V. Craster; P. Sebbah

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Observations of symmetry-induced topological mode steering in a reconfigurable elastic plate

机译：可重构弹性板对称诱导拓扑模式转向的观察

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We experimentally investigate the valley-Hall effect for interfacial edge states, highlighting the importance of the modal patterns between geometrically distinct regions within a structured elastic plate. These experiments, for vibration, are at a scale where detailed measurements are taken throughout the system and not just at the input/output ports; this exposes the coupling between geometrically distinct modes that underlie the differences between wave transport around gentle and sharp bends.

机译：我们通过实验研究了对界面边缘状态的谷厅效果，突出了结构化弹性板内的几何不同区域之间模态图案的重要性。这些实验，用于振动，均以整个系统采用详细测量而不仅在输入/输出端口的规模;这使得几何不同模式之间的耦合使波传输周围的差异呈温和锐利的弯曲。

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《Physical review.B.Condensed matter and materials physics》 |2020年第21期|214103.1-214103.6|共6页
作者
K. Tang; M. Makwana; R. V. Craster; P. Sebbah;
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Department of Physics The Jack and Pearl Resnick Institute for Advanced Technology Bar Ilan University Ramat Gan 5290002 Israel;

Department of Mathematics Imperial College London London SW7 2AZ United Kingdom Multiwave Technologies AG 3 Chemin du Pre Fleuri 1228 Geneva Switzerland;

Department of Mathematics Imperial College London London SW7 2AZ United Kingdom Department of Mechanical Engineering Imperial College London London SW7 2AZ United Kingdom;

Department of Physics The Jack and Pearl Resnick Institute for Advanced Technology Bar Ilan University Ramat Gan 5290002 Israel Institut Langevin ESPCI ParisTech CNRS UMR7587 I rue Jussieu 75238 Paris Cedex 05 France;

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Observations of symmetry-induced topological mode steering in a reconfigurable elastic plate

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