A complete landscape is presented of the electromagnetic coupling between square holes forming a two-dimensional periodic array in a metallic film. By combining both experimental and theoretical results along with a first-principles Fano model, we study the crossover between the physics of metallic wire meshes (when holes occupy most of the unit cell) and the phenomenon of extraordinary optical transmission, which appears when the size of the holes is very small in comparison with the period of the array.

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Persistent URL dx.doi.org/10.1103/physrevb.76.241102
Journal Phys. Rev. B
Bravo-Abad, J, Martin-Moreno, L, Garcia-Vidal, F. J, Hendry, E, & Gómez Rivas, J. (2007). Transmission of light through periodic arrays of square holes:from a metallic wire mesh to an array of tiny holes. Phys. Rev. B, 76(Article number: 241102), 1–4. doi:10.1103/physrevb.76.241102