Published: March 18, 2022

Habib Ammari, Department of Mathematics, Eidgenössische Technische Hochschule Zürich, Switzerland

Functional analytic methods for discrete approximations of subwavelength resonator systems

In this lecture, the speaker will review mathematical and computational frameworks to elucidate physical mechanisms for manipulating waves in a robust way at scales beyond the diffraction limit using subwavelength resonator systems. In particular, he will demonstrate large-scale effective parameters with exotic values. He will also show that these systems can exhibit localized and guided waves on very small length scales.  Using the concept of topologically protected edge modes, such localization can be made robust against structural imperfections.
Short Bio
Habib Ammari is a Professor of Applied Mathematics at ETH Zürich. Before moving to ETH, he was a Director of Research at the Department of Mathematics and Applications at Ecole Normale Supérieure in Paris.