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arXiv · 1512.04681

Experimental observation of robust surface states on photonic crystals possessing single and double Weyl points

Wen-Jie Chen·Meng Xiao·C. T. Chan
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Abstract

We designed and fabricated a time-reversal invariant Weyl photonic crystal that possesses single Weyl nodes with topological charge of 1 and double Weyl nodes with a higher topological charge of 2. Using numerical simulations and microwave experiment, nontrivial band gaps with nonzero Chern numbers for a fixed kz was demonstrated. The robustness of the surface state between the Weyl photonic crystal and PEC against kz-conserving scattering was experimentally observed.

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Wen-Jie Chen, Meng Xiao, C. T. Chan. 2015-12-15. Experimental observation of robust surface states on photonic crystals possessing single and double Weyl points. https://arxiv.org/abs/1512.04681

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