Nonlocal effective medium approximation for metallic nanorod metamaterials

被引：25

作者：

Geng, Tao ^{[1
,2
]}

Zhuang, Songlin ^{[2
]}

Gao, Jie ^{[1
]}

Yang, Xiaodong ^{[1
]}

机构：

[1] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA

[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Minist Educ, Engn Res Ctr Opt Instrument & Syst, Shanghai 200093, Peoples R China

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 24期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevB.91.245128

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an analytical nonlocal effective medium approximation to describe the optical nonlocal effects in metallic nanorod metamaterials based on Mie scattering theory. It is shown that the developed nonlocal effective medium theory can predict a coexistence state of two modes around the epsilon-near-zero region, where strong optical nonlocal effects lead to the behavior of both positive refraction and negative refraction in the nanorod metamaterials. Outside of the coexistence region, only one mode can be excited and its behavior can be well described using the local effective medium theory.

引用

页数：7

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