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Photonic Chern insulator through homogenization of an array of particles

  • 发布时间:2020-05-16
  • 点击次数:
  • 发表刊物:Physical Review B
  • 摘要:We propose a route towards creating a metamaterial that behaves as a photonic Chern insulator, through homogenization of an array of gyromagnetic cylinders. We show that such an array can exhibit nontrivial topological effects, including topologically nontrivial band gaps and one-way edge states, when it can be homogenized to an effective medium model that has the Berry curvature strongly peaked at the wave vector k= 0. The nontrivial band topology depends only on the parameters of the cylinders and the cylinders’ density, and can be realized in a wide variety of different lattices, including…
  • 卷号:96
  • 期号:10
  • 页面范围:100202
  • 是否译文:
  • 发表时间:2017

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