Pixelated non-volatile programmable photonic integrated circuits with 20-level intermediate states

Pixelated programmable Si₃N₄ #PhotonicIntegratedCircuits with a laser‑written Sb₂S₃ matrix achieve record 20 levels at 785 nm, enabling precise phase/amplitude control for #NeuromorphicPhotonics, #OpticalComputing and reconfigurable metasurfaces.

#IJEM: doi.org/10.1088/2631...