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arXiv · 1304.3291

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

Nicolas Reckinger·Alexandru Vlad·Sorin Melinte·Jean-Francois Colomer·Michael Sarrazin
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Abstract

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 microns. 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.

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Nicolas Reckinger, Alexandru Vlad, Sorin Melinte, Jean-Francois Colomer, Michael Sarrazin. 2013-05-23. Graphene-coated holey metal films: tunable molecular sensing by surface plasmon resonance. https://doi.org/10.1063/1.4808095

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