Strongly anisotropic waveguide as a nonmagnetic left-handed system
Strongly anisotropic waveguide as a nonmagnetic left-handed system
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DOI：
10.1103/physrevb.71.201101
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发表时间：
2005-05-01
影响因子：
3.7
通讯作者：
Narimanov, EE
中科院分区：
文献类型：
--
作者：
Podolskiy, VA;Narimanov, EE
我们开发了一种方法来构建一种可以在光学和红外频率下实现的负折射率材料。与同时要求介电常数和磁导率为负值并依靠共振实现非零磁响应的传统设计不同，我们的材料本质上是非磁性的，并利用各向异性介电常数在波导几何结构中提供左撇子行为。我们证明了所提出的材料可以支持表面(极化)波，并显示了极化电子与逝去场增强之间的联系，也称为超透镜。
We develop an approach to build a material with negative refraction index that can be implemented for optical and infrared frequencies. In contrast to conventional designs that require simultaneously negative dielectric permittivity and magnetic permeability and rely on a resonance to achieve a nonzero magnetic response, our material is intrinsically nonmagnetic and makes use of an anisotropic dielectric constant to provide a lefthanded behavior in waveguide geometry. We demonstrate that the proposed material can support surface (polariton) waves, and show the connection between the polaritons and the enhancement of evanescent fields, also known as superlensing.