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Merging Bound States in the Continuum at Off-High Symmetry Points

  • 发布时间:2021-04-10
  • 点击次数:
  • 发表刊物:Physical Review Letters
  • 摘要:Bound states in the continuum (BICs) confine resonances embedded in a continuous spectrum by eliminating radiation loss. Merging multiple BICs provides a promising approach to further reduce the scattering losses caused by fabrication imperfections. However, to date, BIC merging has been limited to only the Γ point, which constrains potential application scenarios such as beam steering and directional vector beams. Here, we propose a new scheme to construct merging BICs at almost an arbitrary point in reciprocal space. Our approach utilizes the topological features of BICs on photonic crystal…
  • 论文类型:期刊论文
  • 卷号:126
  • 期号:11
  • 页面范围:117402
  • 是否译文:
  • 发表时间:2021

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