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arXiv · 1301.3250

Experimental observation of plasmons in a graphene monolayer resting on a two-dimensional subwavelength silicon grating

Xiaolong Zhu·Wei Yan·Peter Uhd Jepsen·Ole Hansen·N. Asger Mortensen·Sanshui Xiao
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Abstract

We experimentally demonstrate graphene-plasmon polariton excitation in a continuous graphene monolayer resting on a two-dimensional subwavelength silicon grating. The subwavelength silicon grating is fabricated by a nanosphere lithography technique with a self-assembled nanosphere array as a template. Measured transmission spectra illustrate the excitation of graphene-plasmon polaritons, which is further supported by numerical simulations and theoretical prediction of plasmonband diagrams. Our grating-assisted coupling to graphene-plasmon polaritons forms an important platform for graphene-based opto-electronics applications.

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Xiaolong Zhu, Wei Yan, Peter Uhd Jepsen, Ole Hansen, N. Asger Mortensen, Sanshui Xiao. 2013-01-15. Experimental observation of plasmons in a graphene monolayer resting on a two-dimensional subwavelength silicon grating. https://doi.org/10.1063/1.4799173

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