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Experimental demonstration of energy sinks in systems with an ill-defined topology

Fernandes, D. E. ; Pereira, R. A. M. ; Lannebère, S. ; Morgado, T. A. ; Silveirinha, M. G.

Experimental demonstration of energy sinks in systems with an ill-defined topology , Proc Metamaterials International Congress on Artificial Materials for Novel Wave Phenomena Metamaterials, Siena, Italy, Vol. , pp. - , September, 2022.

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Abstract
In this work it is shown that nonreciprocal structures with continuous translation symmetry can have an ill-defined topology. In particular, it is experimentally verified that the topology of a ferrite can be effectively regularized when an air layer is adjoined to the relevant material interface. Furthermore, it is experimentally demonstrated that ill-defined topologies can be used to create energy sinks where the electromagnetic fields are massively enhanced.