Disorder-Immune Photonics Based on Mie-Resonant Dielectric Metamaterials

When the feature size of photonic structures becomes comparable or even smaller than the wavelength of light, the fabrication imperfections inevitably introduce disorder that may eliminate many functionalities of subwavelength photonic devices. Here we suggest a novel concept to achieve a robust band gap which can endure disorder beyond 30% as a result of the transition from photonic crystals to Mie-resonant metamaterials. By utilizing Mie-resonant metamaterials with high refractive index, we demonstrate photonic waveguides and cavities with strong robustness to position disorder, thus providing a novel approach to the band-gap-based nanophotonic devices with new properties and functionalities.The work has partially been supported by the ERC Consolidator Grant (TOPOLOGICAL), the Royal Society, Wolfson Foundation, the Ministry of Education and Science of the Russian Federation (3.1500.2017/4.6), the Russian Foundation for Basic Research (18-02-00427, 18-32-20205 mol_a_ved), the Australian Research Council, and the European Union Horizon 2020 research innovation programme under the Marie Skłodowska-Curie Grant (No. 752102) and under the MSCA-RISE scheme (No. 777714)