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arXiv · 1104.5114

Observation of backscattering-immune chiral electromagnetic modes without time reversal breaking

Wen-Jie Chen·Jian-Wen Dong·Zhi Hong Hang·Xiao Xiao·He-Zhou Wang·C. T. Chan
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Abstract

A strategy is proposed to realize robust transport in time reversal invariant photonic system. Using numerical simulation and microwave experiment, we demonstrate that a chiral guided mode in the channel of a three-dimensional dielectric woodpile photonic crystal is immune to the scattering of a square patch of metal or dielectric inserted to block the channel. The chirality based robust transport can be realized in nonmagnetic dielectric materials without any external field.

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Wen-Jie Chen, Jian-Wen Dong, Zhi Hong Hang, Xiao Xiao, He-Zhou Wang, C. T. Chan. 2011-04-27. Observation of backscattering-immune chiral electromagnetic modes without time reversal breaking. https://doi.org/10.1103/physrevlett.107.023901

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