WashU demonstrates modular materials for photonic chips

Washington University in St. Louis researchers presented a heterogeneous photonics method that transfers crystalline nanomembranes onto existing silicon and silicon-nitride circuits. The materials add capabilities including modulation, nonreciprocal light control and wavelength-sensitive detection.

This expands the component library for future optical processors and interconnects. It is a research manufacturing framework, not a complete photonic computer or evidence that optical chips can replace general-purpose silicon processors today.