Graphene-coated holey metal films: Tunable molecular sensing by surface plasmon resonance

被引：59
|
作者：
Reckinger, Nicolas [1 ]
Vlad, Alexandru [2 ]
Melinte, Sorin [2 ]
Colomer, Jean-Francois [1 ]
Sarrazin, Michael [1 ]
机构：
[1] Univ Namur, Dept Phys, Res Ctr Phys Matter & Radiat PMR, B-5000 Namur, Belgium
[2] Catholic Univ Louvain, Inst Informat Commun Technol Elect & Appl Math, B-1348 Louvain, Belgium
来源：
APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 21期
关键词：
LARGE-AREA;
D O I：
10.1063/1.4808095
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the enhancement of surface plasmon resonances in a holey bidimensional grating of subwavelength size, drilled in a gold thin film coated by a graphene sheet. The enhancement originates from the coupling between charge carriers in graphene and gold surface plasmons. The main plasmon resonance peak is located around 1.5 mu m. A lower constraint on the gold-induced doping concentration of graphene is specified and the interest of this architecture for molecular sensing is also highlighted. (C) 2013 AIP Publishing LLC.
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页数：4
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