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Published August 17, 2014 | Published
Book Section - Chapter Open

Controlling and creating plasmonic absorption processes in graphene nanostructures


In this presentation, it will be shown that the plasmonic absorption of a graphene sheet can be enhanced and perturbed in controllable ways by controlling the thickness and permittivity of the supporting substrate. We will show the results of recent experiments where 25% absorption is achieved in the plasmonic modes of a graphene sheet by carefully selecting the properties of an underlying silicon nitride substrate. We also demonstrate how additional absorption pathways can be created by modifying the surrounding dielectric environment to have optical resonances that can couple to the graphene plasmons.

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© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE).

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