Photonic band gap structures composed of exotic materials

I. Nefedov, S. Tretyakov, P. Belov, S. Maslovski
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Abstract

We discuss the wave properties of some exotic materials and photonic band gap structures composed of them. The exotic materials under consideration are so-called backward-wave (BW) media or Veselago, media, whose both permittivity and permeability are negative, and so-called wire media with negative permittivity. Considering finite-period one-dimensional PBG structures, whose each period consists of one layer of a usual material and one layer of a BW-medium, we have found that the usage of a negative material makes it possible to dramatically widen the band gap of one-dimensional layered PBG structures. We have studied waveguiding properties of a plane two-layered waveguide, whose one layer is a usual magnetodielectric, but another one is a slab of a BW-material, and have shown a possibility of propagation of super-slow waves in such a waveguide. We demonstrated unusual dispersion properties of photonic crystals, containing wire media described by a uniaxial dyadic of permittivity having one negative component.
奇异材料组成的光子带隙结构
讨论了一些奇异材料的波性质及其构成的光子带隙结构。所考虑的奇异材料是所谓的反向波(BW)介质或Veselago,介质的介电常数和磁导率都是负的,以及所谓的具有负介电常数的线状介质。考虑到有限周期一维PBG结构,其每个周期由一层普通材料和一层bw介质组成,我们发现使用负性材料可以显着扩大一维分层PBG结构的带隙。我们研究了平面双层波导的波导特性,其中一层是普通的磁介质,另一层是bw材料的平板,并证明了超慢波在这种波导中传播的可能性。我们展示了光子晶体不寻常的色散特性,包含由具有一个负分量的单轴双进介电常数描述的线介质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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