Three-dimensional non-reciprocal transport in photonic topological heterostructure of arbitrary shape

2024/06/29 by Wang, Mudi, Zhang, Ruo-Yang, Zhang, Chenyu +6 · 3 citations
#Applied Physics (physics.app-ph) #FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2407.00440

Abstract

Electromagnetic wave propagation in three-dimensional space typically suffers omnidirectional scattering when encountering obstacles. In this study, we employed Chern vectors to construct a topological heterostructure, where large-volume non-reciprocal topological transport in three-dimension is achieved. The shape of the cross-section in the heterostructure can be arbitrary designed, and we experimentally observed the distinctive cross-shaped field pattern transport, non-reciprocal energy harvesting, and most importantly, the remarkable ability of electromagnetic wave to traverse obstacles and abrupt structure changes without encountering reflections in 3D space.

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