Efficient MoTe2 Slot-enhanced Photodetector based on Engineering Gain-Bandwidth-Product Scaling Laws

Here we demonstrate an efficient (0.8 AW-1) plasmonic slot photodetector based on monolithically integrating MoTe2 in silicon photonics. Shrinking the source-drain distance (L) to 10 nm enables high gain-bandwidth-product detectors scaling with L^-2.