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Observation of surface mode arcs associated with nodal surfaces in electromagnetic metacrystals

  • 发布时间:2021-09-25
  • 点击次数:
  • 发表刊物:Journal of the Optical Society of America B
  • 摘要:In this article, we designed, fabricated, and characterized an electromagnetic metacrystal that topologically carries nontrivial nodal surface degeneracies. Compared with nodal surfaces observed in an acoustic system, the topological charge of the nodal surface in our system is compensated by charge-2 Weyl points, and we designed our system considering the rules of symmetry. To demonstrate the existence of the nodal surfaces and their topological properties, we have experimentally observed surface state arcs derived from helicoid sheets of surface states connecting the nodal surface with a …
  • 论文类型:期刊论文
  • 卷号:38
  • 期号:10
  • 页面范围:2953-2959
  • 是否译文:
  • 发表时间:2021

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