Split-cube-resonator-based metamaterials for polarization-selective asymmetric perfect absorption
Soukoulis, Costas M.
Economou, Eleftherios N.
Nature Publishing Group UK
MetadataShow full item record
Tsilipakos, O., Xomalis, A., Kenanakis, G., Farsari, M., Soukoulis, C. M., Economou, E. N., & Kafesaki, M. (2020). Split-cube-resonator-based metamaterials for polarization-selective asymmetric perfect absorption. Scientific Reports, 10 (1) https://doi.org/10.1038/s41598-020-74221-7
Abstract: A split-cube-resonator-based metamaterial structure that can act as a polarization- and direction-selective perfect absorber for the infrared region is theoretically and experimentally demonstrated. The structure, fabricated by direct laser writing and electroless silver plating, is comprised of four layers of conductively-coupled split-cube magnetic resonators, appropriately rotated to each other to bestow the desired electromagnetic properties. We show narrowband polarization-selective perfect absorption when the structure is illuminated from one side; the situation is reversed when illuminating from the other side, with the orthogonal linear polarization being absorbed. The absorption peak can be tuned in a wide frequency range by a sparser or denser arrangement of the split cube resonators, allowing to cover the entire atmospheric transparency window. The proposed metamaterial structure can find applications in polarization-selective thermal emission at the IR atmospheric transparency window for radiative cooling, in cost-effective infrared sensing devices, and in narrowband filters and linear polarizers in reflection mode.
Article, /639/624, /639/766/400/561, article
Horizon 2020 Framework Programme (736876, 825512)
HELLAS-CH, NSRF 2014-2020 (MIS 5002735)
External DOI: https://doi.org/10.1038/s41598-020-74221-7
This record's URL: https://www.repository.cam.ac.uk/handle/1810/329618
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