Near-field resonance at far-field-induced transparency in diffractive arrays of plasmonic nanorods

被引:13
|
作者
Rodriguez, S. R. K. [1 ]
Janssen, O. T. A. [2 ]
Lozano, G. [1 ]
Omari, A. [3 ,4 ]
Hens, Z. [3 ,4 ]
Rivas, J. Gomez [1 ,5 ]
机构
[1] FOM Inst AMOLF, Ctr Nanophoton, NL-5656 AE Eindhoven, Netherlands
[2] Delft Univ Technol, Opt Res Grp, NL-2628 CJ Delft, Netherlands
[3] Univ Ghent, Ctr Nano & Biophoton, B-9000 Ghent, Belgium
[4] Univ Ghent, B-9000 Ghent, Belgium
[5] Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands
关键词
D O I
10.1364/OL.38.001238
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We numerically demonstrate that a periodic array of metallic nanorods sustains a maximum near-field enhancement and a far field (FF)-induced transparency at the same energy and in-plane momentum. The coupling of bright and dark plasmonic lattice resonances, and electromagnetic retardation along the nanorod length, are responsible for this effect. A standing wave with a quadrupolar field distribution is formed, giving rise to a collective suppression of FF scattering and simultaneously enhanced local fields. (C) 2013 Optical Society of America
引用
收藏
页码:1238 / 1240
页数:3
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