12 November 2014 Metasurfaces inner symmetries: from square lattices to quasicrystalline layouts (presentation video)
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Abstract
We systematically study both experimentally and theoretically the links between the lattice symmetries of metasurfaces and their optical properties at both normal and oblique illumination. We attribute different symmetry elements to number of polarization phenomena. In particular, we predict analytically and verify experimentally the influence of rotational axes, mirror planes and inversion centres on optical activity, circular dichroism and asymmetric transmission. We fabricate and test nanostructured optical metasurfaces with four different inner structures: square and hexagonal lattices, quasicrystalline layout, and amorphous arrangement. We demonstrate the ability to enhance/suppress particular optical response by appropriate choice of the metasurface’s symmetry.
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Sergey S. Kruk, Alexander Poddubny, Christian Helgert, Manuel Decker, Isabelle Staude, Christoph Menzel, Christoph Etrich, Carsten Rockstuhl, David A. Powell, Thomas Pertsch, Dragomir N. Neshev, Yuri S. Kivshar, "Metasurfaces inner symmetries: from square lattices to quasicrystalline layouts (presentation video)", Proc. SPIE 9160, Metamaterials: Fundamentals and Applications 2014, 91600B (12 November 2014); doi: 10.1117/12.2060982; https://doi.org/10.1117/12.2060982
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