超材料
介电常数
波长
光学
各向异性
电介质
简编
材料科学
同种类的
介电常数
负折射
物理
光电子学
统计物理学
历史
考古
作者
Karolina Korzeb,Marcin Gajc,Dorota A. Pawlak
出处
期刊:Optics Express
[The Optical Society]
日期:2015-10-05
卷期号:23 (20): 25406-25406
被引量:90
摘要
Artificially structured hyperbolic metamaterials (HMMs) - uniaxial materials with opposite signs of permittivity for ordinary and extraordinary waves - are one of the most attractive classes of metamaterials. Their existing in nature counterpart natural (homogeneous) hyperbolic materials (NHMs) has several advantages but has not yet been analyzed extensively. Here, based on literature-available data on permittivity as a function of wavelength, we review materials with naturally occurring anisotropy of permittivity in specific wavelength ranges. We suggest the best choice of materials that may act as NHMs depending on the wavelength, strength of the dielectric anisotropy (SDA), and losses.
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