2016-03-09
Backaction in metasurface etalons
Publication
Publication
Phys. Rev. B , Volume 93 - Issue 10, Article number: 104301 p. 1- 7
We consider the response of etalons created by a combination of a conventional mirror and a metasurface composed of a periodic lattice of metal scatterers with a resonant response. This geometry has been used previously for hybridization of localized plasmons with Fabry-Perot resonances and for perfect absorption, in so-called Salisbury screens. The particular aspect we address is if one can assume an environment-independent reflectivity for the metasurface when calculating the reflectivity of the composite system, as in a standard Fabry-Perot analysis, or whether the fact that the metasurface interacts with its own mirror image renormalizes its response. Using lattice sum theory, we take into account all possible retarded dipole-dipole interactions of scatterers in the metasurface amongst each other and through the mirror. We show that while a layer-by-layer Fabry-Perot formalism captures the main qualitative features of metasurface etalons, in fact the mirror modifies both the polarizability and reflectivity of the metasurface in a fashion that is akin to Drexhage's modification of the radiative properties of a single dipole.
Additional Metadata | |
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APS | |
R. Maas | |
doi.org/10.1103/PhysRevB.93.104301 | |
Phys. Rev. B | |
Organisation | Resonant Nanophotonics |
Kwadrin, A., Osorio, C., & Koenderink, F. (2016). Backaction in metasurface etalons. Phys. Rev. B, 93(10, Article number: 104301), 1–7. doi:10.1103/PhysRevB.93.104301 |