27 August 2014 Confined modes on a meta-surface
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Meta–surfaces or 2D metamaterials are generally considered in the far-field. Because of their resonant properties, they possess also an interesting band structure in the near-field. A meta–surface made of a set of parallel nano- wires deposited on a surface was studied. Bloch waves localized on the surface exist in the vicinity of the anti-resonances of the nano-wires. This band-structure leads to strong variations in the efficiencies of the meta- surface seen as a diffraction grating.
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Richard Razafindrakoto, Richard Razafindrakoto, Emmanuel Rousseau, Emmanuel Rousseau, Didier Felbacq, Didier Felbacq, Emmanuel Kling, Emmanuel Kling, "Confined modes on a meta-surface", Proc. SPIE 9172, Nanostructured Thin Films VII, 917203 (27 August 2014); doi: 10.1117/12.2060649; https://doi.org/10.1117/12.2060649

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