Topological guidance of vortices by disclination

Zhichan Hu,Domenico Bongiovanni,Ziteng Wang, Xiangdong Wang,Limin Song,Daohong Song,Yi Hu,Roberto Morandotti,Hrvoje Buljan,Zhigang Chen

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

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摘要

We report the first experimental realization of topological guidance of optical vortices by disclination in a photonic topological crystalline insulator. Both singly- and doubly-charged vortex beams remain robust during propagation, manifesting protected zero-energy modes.

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关键词

(050.4865) Optical vortices,(350.1370) Berry’s phase,(080.1238) Array waveguide devices

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