The Physics & Astronomy Colloquium Series presents Oscar Avalos-Ovando from the University of North Carolina at Greensboro, discussing "Computational Modeling of Complex Phenomena at the Nanoscale: Light, Nanoparticles, and Devices" on September 4.

Abstract: In this talk, I will describe several of our joint theory/experimental studies on electromagnetic properties of diverse nanosystems, such as plasmonic and dielectric nanoparticles.

Firstly, I will cover our recent studies about two types of metasurfaces platforms for controlling light confinement: transition metal nitride chiral (TMNs) metastructures which show significant optical activity, and hexagonal boron nitride metastructures with high Q-factors, which can even increase upon coating.

Secondly, I will go over two proposals with nanoparticles for: polarization-dependent photochemistry with chiral gold nanocubes, and alternative plasmonic activity with TMN nanoparticles.