Glass-on-2-D-material photonics

摘要: Due to their extraordinary optoelectronic properties, 2-D materials have been identified as promising for integrated photonics. However, most material-integrated photonic devices demonstrated date are fabricated by transferring a layer of material on top already structures, which limits full utilization capability. Here we introduce new integration approach via direct deposition and fabrication chalcogenide glass materials.We applied the process fabricate high-performance, broadband on-chip graphene-based optical polarizers with high contrast ratio 740 dB/cm leveraging remarkable anisotropy graphene, thermo-optic switches record heating efficiency 10 nm/mW using in-waveguide low-loss (20 dB/cm) graphene transparent electrodes. The low processing temperatures glasses further enables monolithic plastics first waveguide-integrated photodetector flexible substrates. Last but not least, also components several other including WSe2, WS2, MoTe2. glass-on-2-D-material therefore provides facile universal route based materials.