Beam Routing through Excitons in Transition Metal Dichalcogenide Monolayers

Routing light at the nanoscale typically relies on nanostructured surfaces to imprint directionality on the emission.

Routing light at the nanoscale typically relies on nanostructured surfaces to imprint directionality on the emission. Using low-temperature, angle-resolved cathodoluminescence spectroscopy, we show that the intrinsic excitonic transitions of a semiconductor can themselves…