Invisibility and perfect absorption of all-dielectric metasurfaces originated from the transverse Kerker effect
| Autor: | Shamkhi, Hadi K., Sayanskiy, Andrey, Valero, Adria Canos, Kupriianov, Anton S., Kapitanova, Polina, Kivshar, Yuri S., Shalin, Alexander S., Tuz, Vladimir R. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Phys. Rev. Materials 3, 085201 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevMaterials.3.085201 |
| Popis: | Dielectric metasurfaces perform unique photonics effects and serve as the engine of nowadays light-matter technologies. Here, we suggest theoretically and demonstrate experimentally the realization of a high transparency effect in a novel type of all-dielectric metasurface, where each constituting meta-atom of the lattice presents the so-called transverse Kerker effect. In contrast to Huygens' metasurfaces, both phase and amplitude of the incoming wave remain unperturbed at the resonant frequency and, consequently, our metasurface totally operates in the invisibility regime. We prove experimentally, for the microwave frequency range, that both phase and amplitude of the transmitted wave from the metasurface remain almost unaffected. Finally, we demonstrate both numerically and experimentally and explain theoretically in detail a novel mechanism to achieve perfect absorption of the incident light enabled by the resonant response of the dielectric metasurfaces placed in the vicinity of a conducting substrate. In the subdiffractive limit, we show the aforementioned effects are mainly determined by the optical response of the constituting meta-atoms rather than the collective lattice contributions. With the spectrum scalability, our findings can be incorporated in engineering devices for energy harvesting, nonlinear phenomena and filters applications. Comment: 10 pages, 6 figures |
| Databáze: | arXiv |
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