Universality and scaling in topological metamaterials
par
Didier Felbacq(SMC, Université Charles Coulomb, Montpellier, France)
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Description
Seminaire du Consortium de Physique Theorique de Strasbourg (CPTS)
The presentation will deal with electromagnetic wave propagation in a model metamaterial made of dielectric rods. The scatterers are such that they present a double resonance (magnetic and electric) in such a way that conduction bands are opened. A low frequency analysis will show that the behavior of the system can be described by resonant (dispersive) electromagnetic parameters epsilon and mu. The bands have universal features with respect to symmetry and scaling, that will be explored numerically. The link with photonic topological insulators will be discussed as well as the transition to Anderson localization.