论文标题
使用复合材料超材料重新访问广义Kerker条件
Revisit of generalized Kerker's conditions using composite metamaterials
论文作者
论文摘要
通过球形粒子，通过球形颗粒，将零向后散射（ZB）和零向前散射（ZFS），即分别通过球形颗粒，这是不可能的，这是不可能的，这是不可能的。我们报告了设计复合超材料的理论建模，该复合材料超材料通过采用MIE散射理论和扩展的Maxwell Garnett理论，在可见的频率范围内呈现大型的光学磁渗透性。我们从数字上表明，仔细选择复合材料超材料的成分可以以足够大的人工渗透性获得超材料，最终提供了Kerker的标准以达到Kereker的条件。通过采用逼真的材料参数，我们证明了表现出ZB和ZF的超材料与折射率的假想部分相比，与金属结构相比，它是设计高性能纳米光子设备的途径。
Achieving zero backward scattering (ZBS) and zero forward scattering (ZFS), i.e., the so-called the first and second Kerker's conditions respectively, by sphere spherical particles is considered to be impossible due to the unavailability of naturally occurring magnetic materials in the visible frequency range. We report theoretical modeling to design composite metamaterials that present large optical magnetic permeability in the visible frequency range by employing Mie scattering theory and extended Maxwell Garnett theory. We numerically show that a careful selection of constituents of a composite metamaterial one can obtain metamaterials with sufficiently large artificial permeability that eventually provides the Kerker's criterion to achieve the Kereker's conditions. By taking realistic material parameters we demonstrate that the metamaterials exhibiting ZBS and ZFS have a small imaginary part of the refractive index than metallic structures that pave a path to design high-performance nanophotonic devices.
