Strong light-matter interactions in hybrid nanostructures with transition metal dichalcogenides

Abstract

The interaction between quantum emitters and photons in the strong coupling regime has received much attention in recent years due to its important position in fundamental and applied physics. Transition metal dichalcogenides (TMDs) have become ideal candidates for the study of strong light-matter interactions due to the formation of in-plane excitons exhibiting giant oscillator strength with narrow-band, well-pronounced optical transitions, which can be readily coupled to various optical excitations. The study of TMD-based strong coupling are leading to striking discoveries in many applications such as polariton condensation, lasing, all-optical switches and quantum information processing. This review summarizes the recent advances in strong coupling of TMD excitons with different types of nanostructures including traditional optical cavities, plasmonic nanocavities and all-dielectric nanoresonators. We finally discuss the future perspectives and possible directions on the TMD-based strong exciton–photon interactions in strong coupling regime.