Probing the dielectric response of graphene via dual-band plasmonic nanoresonators

被引：10

作者：

Xiao, Ye ^{[1
]}

Francescato, Yan ^{[1
]}

Giannini, Vincenzo ^{[1
]}

Rahmani, Mohsen ^{[2
]}

Roschuk, Tyler R. ^{[1
]}

Gilbertson, Adam M. ^{[1
]}

Sonnefraud, Yannick ^{[1
]}

Mattevi, Cecilia ^{[3
]}

Hong, Minghui ^{[4
]}

Cohen, Lesley F. ^{[1
]}

Maier, Stefan A. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

[2] ASTAR, Data Storage Inst, Singapore 117608, Singapore

[3] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England

[4] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2013年 / 15卷 / 15期

基金：

英国工程与自然科学研究理事会;

关键词：

OPTICAL-PROPERTIES; ENHANCEMENT; RESONANCES; SILVER;

D O I：

10.1039/c3cp43896a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this article, we use optical transmission spectroscopy to measure the changes in the resonance features of a Au plasmonic nanoresonator array consisting of concentric ring/disc cavity elements, when graphene is introduced as an encapsulating medium. We show that by using finite element modelling to best reproduce our experimental results the dielectric response of the graphene film can be determined. We discuss the potential of such structures for chemical sensing applications.

引用

页码：5395 / 5399

页数：5

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