Abstract
Transition metal dichalcogenides (TMDCs) monolayers are promising candidates for novel optoelectronic devices, because they exhibit unique combination of atomic-scale thickness, direct bandgap and ease of integration proporties. In this work, we manipulate the exciton propagation in WS2 monolayer integatd with a photonic crystal at room temperature. By coupling with the optical modes of the photonic crystal, the excitons can propagate along a particular direction by around∼10μm. Moreimportantly, the excitons propagate along the particular direction with locked linear polarization up to 60%. Our results pave the way to manipulate the polarization distribution and propagation of the excitons in the WS2 monolayer.