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arXiv · 1312.4312

Plasmons in graphene on uniaxial substrates

I. Arrazola·R. Hillenbrand·A. Yu. Nikitin
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Abstract

Placing graphene on uniaxial substrates may have interesting application potential for graphene-based photonic and optoelectronic devices. Here we analytically derive the dispersion relation for graphene plasmons on uniaxial substrates and discuss their momentum, propagation length and polarization as a function of frequency, propagation direction and both ordinary and extraordinary dielectric permittivities of the substrate. We find that the plasmons exhibit an anisotropic propagation, yielding radially asymmetric field patterns when a point emitter launches plasmons in the graphene layer.

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I. Arrazola, R. Hillenbrand, A. Yu. Nikitin. 2013-12-16. Plasmons in graphene on uniaxial substrates. https://doi.org/10.1063/1.4860576

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