Compound resonance-induced coupling effects in composite plasmonic metamaterials

被引：12
|
作者：
Farhang, Arash [1 ]
Ramakrishna, S. Anantha [2 ]
Martin, Olivier J. F. [1 ]
机构：
[1] Swiss Fed Inst Technol Lausanne EPFL STI NAM, Nanophoton & Metrol Lab, CH-1015 Lausanne, Switzerland
[2] Indian Inst Technol, Dept Phys, Metamat & Plasmon Lab, Kanpur 208016, Uttar Pradesh, India
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 28期
关键词：
SURFACE-PLASMONS; OPTICAL INTERACTIONS; METAL NANOPARTICLES; GOLD FILM; NANOSTRUCTURES; HYBRIDIZATION; POLARITONS; PARTICLE; THERAPY;
D O I：
10.1364/OE.20.029447
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study a compound plasmonic system composed of a periodic Au grating array placed close to a thin Au film. The study is not limited to normal incidence and dispersion diagrams are computed for a broad variety of parameters. In addition to identifying localized and propagating modes and the coupling/hybridization interactions between them, we go further and identify modes of compound nature, i.e. those exhibiting both localized and propagating characteristics, and discuss which plasmon modes can exhibit such a behavior in the system at hand and how structural parameters play a central part in the spectral response of such modes. (C)2012 Optical Society of America
引用
收藏
页码：29447 / 29456
页数：10
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