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Direct dark mode excitation by symmetry matching of a single-particle-based metasurface

Abstract : This paper provides evidence for a direct dark mode excitation mechanism in a metasurface structure. The dark mode excitation mechanism is entirely determined by structures' symmetry and does not depend on near-field coupling between elements. In our examples, we consider single-element based metasurface composed of two V antennas connected in an antisymmetric arrangement. Both experimental and modeling results show an efficient excitation of magnetic dipolar mode in such structures. The direct dark mode excitation mechanism provides a design that is more robust with respect to technology imperfections. The considered approach opens promising perspectives for new types of nanostructure designs and greatly relaxes fabrication constraints for the optical domain.
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https://hal-univ-paris10.archives-ouvertes.fr/hal-01422958
Contributor : Shah Nawaz Burokur <>
Submitted on : Tuesday, December 27, 2016 - 9:39:56 PM
Last modification on : Wednesday, September 16, 2020 - 5:00:15 PM

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Shah Nawaz Burokur, Anatole Lupu, Andre Lustrac. Direct dark mode excitation by symmetry matching of a single-particle-based metasurface. Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 2015, 91 (3), ⟨10.1103/PhysRevB.91.035104⟩. ⟨hal-01422958⟩

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