Enhanced Light-Matter Interaction in Waveguide-Integrated Silicon-2D Material Photodetectors

Extending the interaction length between a two-dimensional material (2DM) layer and the optical modal field propagating along an optical waveguide offers a compelling method to significantly enhance the interaction between light and matter. This enhancement has sparked considerable interest in the development of waveguide-integrated silicon-2DM photodetectors (PDs) due to their potential applications in a wide array of functional photonic integrated circuits. These circuits find particular relevance in areas such as optical communications and interconnects, where the ability to manipulate and detect light with high efficiency is crucial.