Journal
ACS PHOTONICS
Volume 5, Issue 7, Pages 2888-2894Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.8b00246
Keywords
Mie resonance; near-field coupling; antiferromagnetic order; all-dielectric metasurface
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Funding
- Australian Research Council
- Australian National University
- Russian Science Foundation [17-72-10230]
- Russian Science Foundation [17-72-10230] Funding Source: Russian Science Foundation
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We reveal that strong near-field coupling effects can be observed for dissimilar Mie-resonant dielectric meta-atoms and demonstrate that both properties and functionalities of high-index all-dielectric photonic structures can be controlled by engineering their geometry and changing the distance between meta-atoms thus enhancing the effective magnetic response. We describe dielectric dimers, quadrumers, and metasurfaces with a staggered structure of optically induced magnetic moments (the so-called optical antiferromagnetism) and also demonstrate that a strong toroidal response can be introduced in metasurfaces by engineering asymmetric nanoparticle quadrumers as building blocks for novel designs in all-dielectric resonant meta-optics.
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