Control of light-matter interaction in 2D semiconductors

Abstract

Two-dimensional van der Waals (vdW) materials have emerged as a very attractive class of optoelectronic material due to their extraordinarily strong interaction with light. In this talk we will present our recent work on strong light-matter coupling and control of the excitons in 2D transition metal dichalcogenides. Specifically, we will discuss nonlinear optical response of the strongly coupled states, control of chiral light-matter interaction in these materials using metamaterials, and the use of strain and artifical gauge fields to control transport and valley properties of the excitons.