Anomalous Dispersion Behavior of Staggered Arranged Metal Nanowire Arrays

The dispersion relations of staggered arranged metal nanowire arrays are numerically investigated. It is demonstrated that the structure can support the propagation of plasmon modes with zero and negative group velocities derived directly from the dispersion curves, apart from normal plasmon modes w...

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Bibliographic Details
Published in:Chinese physics letters 2014-03, Vol.31 (3), p.140-143
Main Authors: Chen, Jun-Xue, Shang, Li-Ping
Format: Article
Language:English
Subjects:
Arrays
Dispersions
Group velocity
Mathematical models
Nanowires
Plasmons
Positioning
Supports
交错
异常
等离子体
结构参数
群速度传播
色散特性
配置
金属纳米线阵列
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Summary:The dispersion relations of staggered arranged metal nanowire arrays are numerically investigated. It is demonstrated that the structure can support the propagation of plasmon modes with zero and negative group velocities derived directly from the dispersion curves, apart from normal plasmon modes with positive group velocities. Furthermore, the effects of the structural parameters on the dispersion behaviors of plasmon modes are also examined.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/3/037303