Three-dimensional non-reciprocal transport in photonic topological heterostructure of arbitrary shape
arxiv(2024)
摘要
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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