layered materials

Light Matter Interactions in Layered Materials: from Trivial to Topological Band Structures

Professor Ritesh Agarwal, Department of Materials Science and Engineering, University of Pennsylvania

May 30, 09:00 - 10:00

B1 L2 R4214

University of Pennsylvania layered materials

Strongly confined electrical, optical and thermal excitations drastically modify material’s properties and break local symmetries that can enable precisely tunable novel responses and new functionalities. We will discuss the effect of engineered plasmonic lattice on light matter interactions in 2D excitonic crystals to produce novel responses such as enhanced and tunable emission, Fano resonances and strong exciton-plasmon polaritons, which can be precisely controlled by geometry and applied fields to produce novel device concepts. Our recent work on collective polaritonic modes and the formation of a complete polaritonic bandgap in few-layered excitonic semiconductors coupled to plasmons will also be presented.