Issue 15, 2013
From the journal:

Physical Chemistry Chemical Physics

Probing the dielectric response of graphenevia dual-band plasmonic nanoresonators

Ye Xiao,*a   Yan Francescato,*a   Vincenzo Giannini,a   Mohsen Rahmani,b   Tyler R. Roschuk,a   Adam M. Gilbertson,a   Yannick Sonnefraud,a   Cecilia Mattevi,c   Minghui Hong,d   Lesley F. Cohena  and  Stefan A. Maiera  

* Corresponding authors

a Blackett Laboratory, Imperial College London, Prince Consort Road, London, UK
E-mail: ye.xiao@ic.ac.uk, yan.francescato10@ic.ac.uk
Tel: +44 (0)2075 947 627

b Data Storage Institute, (A* STAR) Agency for Science, Technology and Research, 5 Engineering Drive 1, Singapore
E-mail: mohsenrahmani.82@gmail.com

c Materials Department, Imperial College London, Prince Consort Road, London, UK
E-mail: c.mattevi@ic.ac.uk

d Department of Electrical and Computer Engineering, National University of Singapore, Singapore
E-mail: elehmh@nus.edu.sg

Abstract

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.

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

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Article information

DOI
https://doi.org/10.1039/C3CP43896A
Article type
Paper
Submitted
02 Nov 2012
Accepted
28 Jan 2013
First published
31 Jan 2013

Phys. Chem. Chem. Phys., 2013,15, 5395-5399

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

Y. Xiao, Y. Francescato, V. Giannini, M. Rahmani, T. R. Roschuk, A. M. Gilbertson, Y. Sonnefraud, C. Mattevi, M. Hong, L. F. Cohen and S. A. Maier, Phys. Chem. Chem. Phys., 2013, 15, 5395 DOI: 10.1039/C3CP43896A

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