Discovery of a Graphene Sibling: The Photonic Topological Quadratic-Node Semimetal

Zihe Gao,Haoqi Zhao,Tianwei Wu,Xilin Feng,Zhifeng Zhang,Xingdu Qiao,Ching-Kai Chiu,Liang Feng

2023 Conference on Lasers and Electro-Optics (CLEO)（2023）

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摘要

We report the experimental discovery of the topological quadratic-node semimetal in a photonic microring lattice with a robust second-order nodal point at the Brillouin zone center and two Dirac points at the Brillouin zone boundary.

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关键词

(160.3918) Metamaterials,(230.4555) Coupled resonators

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