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By exploiting the electro-absorption effect of graphene, we present a graphene-based long-range hybrid plasmonic slot (LRHPS) waveguide modulator. The waveguide structure consists of a silica substrate, two high-index silicon strips, two low-index slots, two graphene layers, and a metal. The modes are confined within the two horizontal slot regions, which make graphene layer close to the maximum of...
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