Tuning photonics structure by integrating with 2D materials

Monolayer transition metal dichalcogenides (TMDCs) exhibit exceptional coupling to light and large electrical tunability, which make them perfect candidates for optoelectronics applications. We demonstrate the integration of TMDCs and photonic structures. Due to the strong coupling between the TMDCs and tightly confined light fields, the optical properties of the photonics structures are significantly modified. By electrically tuning the TMDCs, we can control the coupling between them and realize on demand tuning of the photonics structures. This study sheds light on future applications of TMDCs in on-chip photonics.