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We report on the numerical investigation and analytical modeling of tapered terahertz nanoantennas. We show that the maximum field enhancement at the antenna tip is achieved for small taper angles rather than in a more traditional dipolar (wire-like) geometry.
We will present a novel approach for improving solar water splitting with plasmonic photocatalysts, which relies on the exploitation of resonant cavity modes. Details about the electromagnetic design and experimental validation of this concept will be provided. Our findings show a possible route for efficiently designing photocatalysts that are active in the full solar range.
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