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Zero-index bound states in the continuum

  • 发布时间:2020-05-16
  • 点击次数:
  • 发表刊物:Physical review letters
  • 摘要:Metamaterials with an effective zero refractive index associated with their electromagnetic response are sought for a number of applications in communications and nonlinear optics. A promising way that this can be achieved in all-dielectric photonic crystals is through the design of a Dirac cone at zero Bloch wave vector in the photonic band structure. In the optical frequency range, the natural way to implement this design is through the use of a photonic crystal slab. In the existing implementation, however, the zero-index photonic modes also radiate strongly into the environment due to …
  • 卷号:121
  • 期号:26
  • 页面范围:263901
  • 是否译文:
  • 发表时间:2018

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