Topological Flatband States in Corbino-shaped Decorated Honeycomb Lattices

Shenyi Gao,Limin Song,Wenchao Yan,Yichi Wang,Shiqi Xia,Liqin Tang,Daohong Song,Jingjun Xu,Zhigang Chen

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

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摘要

We experimentally demonstrate photonic decorated honeycomb lattices that exhibit two singular flat bands, thereby observing two distinct robust boundary modes in finite-sized lattices in Corbino-geometry which manifest topological noncontractible loop states of an infinite system.

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关键词

Corbino-geometry,Corbino-shaped decorated honeycomb lattices,distinct robust boundary modes,exhibit two singular flat bands,finite-sized lattices,photonic decorated honeycomb lattices,topological flatband states,topological noncontractible loop states

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