Enhanced nonlinear interaction of polaritons via excitonic Rydberg states in monolayer WSe₂.

ABSTRACT: Strong optical nonlinearities play a central role in realizing quantum photonic technologies. Exciton-polaritons, which result from the hybridization of material excitations and cavity photons, are an attractive candidate to realize such nonlinearities. While the interaction between ground state excitons generates a notable optical nonlinearity, the strength of such interactions is generally not sufficient to reach the regime of quantum nonlinear optics. Excited states, however, feature enhanced interactions and therefore hold promise for accessing the quantum domain of single-photon nonlinearities. Here we demonstrate the formation of exciton-polaritons using excited excitonic states in monolayer tungsten diselenide (WSe₂) embedded in a microcavity. The realized excited-state p

SUBMITTER: Gu J 

PROVIDER: S-EPMC8050076 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature