M. Albooyeh, C. R. Simovski
In this Letter we theoretically study the possibility of total power absorption of light in a planar grid modelled as an effective sheet with zero optical thickness. The key prerequisite of this effect is the simultaneous presence of both resonant electric and magnetic modes in the structure. The effect of substrate-induced bianisotropy allowed us to combine the total absorption with the huge local field enhancement. The combination of these extreme properties within the same optically thin structure brings promising functionalities. We demonstrate by an illustrative numerical example that this combination is realizable in a planar array of simple plasmonic nanoparticles located near the semiconductor interface.
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http://arxiv.org/abs/1203.2100
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