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Phys Chem Chem Phys. 2013 Apr 21;15(15):5395-9. doi: 10.1039/c3cp43896a.

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

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  • 1Blackett Laboratory, Imperial College London, London, UK. ye.xiao@ic.ac.uk


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.

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