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arXiv · 1712.04589

Sorting and Routing Topologically Protected Edge States by their Valleys

Kueifu Lai·Yang Yu·Yuchen Han·Fei Gao·Baile Zhang·Gennady Shvets
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Abstract

We experimentally demonstrate and characterize a photonic platform containing heterogeneous topological phases. This platform is shown to support valley-spin locked edge states that can be routed based on their spin and valley degrees of freedom. The routing is accomplished by changing the topology of the valley photonic crystal embedded inside a spin-Hall photonic crystal.

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Kueifu Lai, Yang Yu, Yuchen Han, Fei Gao, Baile Zhang, Gennady Shvets. 2017-12-13. Sorting and Routing Topologically Protected Edge States by their Valleys. https://arxiv.org/abs/1712.04589

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