Toroidic and antitoroidic orders in hexagonal arrays of dielectric trimers: magnetic group approach
Victor Dmitriev,
Silvio Domingos Silva Santos,
Andrey B. Evlyukhin
et al.
Abstract:Herein, we investigate symmetry-protected toroidal dipole resonances and conditions of their excitation in a new type of electromagnetic metamaterials. These metamaterials are all-dielectric planar periodic arrays of dielectric disks disposed on a dielectric substrate. The elementary building blocks of the array are trimers which are distributed in hexagonal unit supercells. The highest geometrical symmetry of the unit supercell is C6v. The analysis is fulfilled by using the representation theory of groups wit… Show more
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