Optically induced antiferromagnetic order in dielectric metasurfaces with complex supercells
Rahimzadegan A, Lepeshov S, Zhou W, Choi DY, Sautter J, Arslan D, Zou C, Fasold S, Rockstuhl C, Pertsch T, Kivshar Y, Staude I (2023)
Publication Type: Journal article
Publication year: 2023
Journal
Book Volume: 40
Pages Range: 994-998
Journal Issue: 5
DOI: 10.1364/JOSAB.478307
Abstract
Metasurfaces are 2D planar lattices of nanoparticles that allow the manipulation of incident light properties. Because of that attribute, metasurfaces are promising candidates to replace bulky optical components. Traditionally, metasurfaces are made from a periodic arrangement of identical unit cells. However, more degrees of freedom are accessible if an increasing number of structured unit cells are combined. The present study explores a type of dielectric metasurface with complex supercells composed of Mie-resonant dielectric nanocylinders and nanoscale rings. We numerically and experimentally demonstrate the signature of an optical response that relies on the structures sustaining staggered optically induced magnetic dipole moments. The optical response is associated with an optical antiferromagnetism. The optical antiferromagnetism exploits the presence of pronounced coupling between dissimilar Mie-resonant dielectric nanoparticles. The coupling is manipulated by engineering the geometry and distance between the nanoparticles, which ultimately enhances their effective magnetic response. Our results suggest possible applications in resonant nanophotonics by broadening the modulation capabilities of metasurfaces.
Involved external institutions
ITMO University / Национальный исследовательский университет ИТМО
Russian Federation (RU)
Friedrich-Schiller-Universität Jena
Germany (DE)
Australian National University (ANU)
Australia (AU)
Karlsruhe Institute of Technology (KIT)
Germany (DE)
Russian Federation (RU)
Friedrich-Schiller-Universität Jena
Germany (DE)
Australian National University (ANU)
Australia (AU)
Karlsruhe Institute of Technology (KIT)
Germany (DE)
How to cite
APA:
Rahimzadegan, A., Lepeshov, S., Zhou, W., Choi, D.Y., Sautter, J., Arslan, D.,... Staude, I. (2023). Optically induced antiferromagnetic order in dielectric metasurfaces with complex supercells. Journal of the Optical Society of America B-Optical Physics, 40(5), 994-998. https://dx.doi.org/10.1364/JOSAB.478307
MLA:
Rahimzadegan, Aso, et al. "Optically induced antiferromagnetic order in dielectric metasurfaces with complex supercells." Journal of the Optical Society of America B-Optical Physics 40.5 (2023): 994-998.
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