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arXiv · 1901.10916

Nonlocal effects in singular plasmonic metasurfaces

Fan Yang·Yao-Ting Wang·Paloma Arroyo Huidobro·John B Pendry
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Abstract

A local model of the dielectric response of a metal predicts that singular surfaces, such as sharp-edged structures, have a continuous absorption spectrum and extreme concentration of energy at the singularity. Here we show that nonlocality drastically alters this picture: the spectrum is now discrete and energy concentration, though still substantial, is greatly reduced.

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Fan Yang, Yao-Ting Wang, Paloma Arroyo Huidobro, John B Pendry. 2019-01-30. Nonlocal effects in singular plasmonic metasurfaces. https://doi.org/10.1103/physrevb.99.165423

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