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首页> 外文期刊>Optical and quantum electronics >Investigating anisotropic photonic band gaps in three-dimensional plasma photonic crystals with simple-cubic lattices doped by the uniaxial material
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Investigating anisotropic photonic band gaps in three-dimensional plasma photonic crystals with simple-cubic lattices doped by the uniaxial material

机译：研究单轴材料掺杂的具有简单立方晶格的三维等离子光子晶体中的各向异性光子带隙

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摘要

In this paper, the properties of photonic band gaps (PBGs) for three-dimensional plasma photonic crystals (PPCs) composed of anisotropic dielectric (the uniaxial material) spheres in homogeneous unmagnetized plasma background with simple-cubic (sc) lattices are theoretically investigated by the plane wave expansion method. The equations for calculating the anisotropic PBGs in the first irreducible Brillouin zone are theoretically deduced. The influences of the ordinary-refractive index, extraordinary-refractive index, filling factor, and plasma frequency on the characteristics of anisotropic PBGs for the three-dimensional PPCs are studied in detail, respectively, and some corresponding physical explanations are also given. The numerical results show that the anisotropy can open partial band gaps in sc lattices and the complete PBGs can be found compared to the conventional three-dimensional PPCs doped by the isotropic material. It also is shown that the anisotropic PBGs can be manipulated by the ordinary-refractive index, extrordinary-refractive index, filling factor, and plasma frequency, respectively. Introducing the uniaxial material into three-dimensional plasma-dielectric photonic crystals can enlarge the PBGs and also provide a way to obtain the complete PBGs as the three-dimensional PPCs with high symmetry.
机译：本文通过理论研究了均质非磁化等离子体背景下由各向异性电介质（单轴材料）球组成的三维等离子光子晶体（PPC）的光子带隙（PBG）的性质。平面波展开法。理论上推导了计算第一不可约布里渊区中各向异性PBG的方程。分别详细研究了普通折射率，超折射率，填充因子和等离子体频率对三维PPC各向异性PBG特性的影响，并给出了相应的物理解释。数值结果表明，与各向同性材料掺杂的传统三维PPC相比，各向异性可以在sc晶格中打开部分带隙，并且可以找到完整的PBG。还表明，各向异性PBG可以分别通过常折射率，外折射率，填充因子和等离子体频率进行控制。将单轴材料引入三维等离子介电光子晶体可以扩大PBG，并为获得完整的PBG作为具有高对称性的三维PPC提供了一种途径。

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