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Observation of splitting of charge-2 Weyl points in 3D micro-printed photonic crystals

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Abstract

We experimentally demonstrate splitting of a charge-2 Weyl point into two charge-1 Weyl points in a 3D micro-printed photonic crystal. We measure its angle-resolved spectrum in the near-infrared via Fourier-transform infrared spectroscopy.

© 2021 The Author(s)

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