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23 September 2016 Tuning surface plasmons in graphene ribbons with liquid crystal layer
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Surface plasmons in graphene possess stronger mode confinement and lower propagation loss. One way to excite the surface plasmons is placing a periodic array of graphene nano-ribbons on top of a dielectric substrate. However once the system is fabricated it is not possible to change its optical properties. Liquid crystals (LC) are a uniaxial medium with an optical axis easily controlled by external stimuli. We suggest tuning the surface plasmons in an array of graphene ribbons by placing a LC slab on top of the ribbons. A voltage applied to the LC layer shifts the graphene ribbons plasmonic notch and changes its depth.
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Viktor Yu. Reshetnyak, Timothy J. Bunning, and Dean R. Evans "Tuning surface plasmons in graphene ribbons with liquid crystal layer", Proc. SPIE 9940, Liquid Crystals XX, 994019 (23 September 2016);

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