Design of plasmonic directional antennas via evolutionary optimization.

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ID: 66601
2019
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Abstract
We demonstrate inverse design of plasmonic nanoantennas for directional light scattering. Our method is based on a combination of full-field electrodynamical simulations via the Green dyadic method and evolutionary optimization (EO). Without any initial bias, we find that the geometries reproducibly found by EO work on the same principles as radio-frequency antennas. We demonstrate the versatility of our approach by designing various directional optical antennas for different scattering problems. EO-based nanoantenna design has tremendous potential for a multitude of applications like nano-scale information routing and processing or single-molecule spectroscopy. Furthermore, EO can help to derive general design rules and to identify inherent physical limitations for photonic nanoparticles and metasurfaces.
Reference Key
wiecha2019designoptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wiecha, Peter R;Majorel, Clément;Girard, Christian;Cuche, Aurélien;Paillard, Vincent;Muskens, Otto L;Arbouet, Arnaud;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.029069
URL
Keywords
terahertz metamaterial absorber nanoantenna ohmic absorption

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