Polaritonic Metastructures

In this talk, I will discuss our recent progress in the area of polaritonics, and its role in advancing the field of metamaterials and metasurfaces. Tailored material resonances, based on excitons, phonons, magnons and electronic transitions, can be strongly coupled to light in engineered metastructures, unveiling new degrees of freedom for the control of light-matter interactions and enhancing optical nonlinearities. In particular, I will discuss our recent progress on metasurfaces strongly coupled to vibrational and excitonic modes of van der Waals crystals, and control of magnon-exciton polaritons through the magnetic bias in tailored metastructures.