A Manufacturing Approach That Brings Diamond Quantum Photonics Closer To Industrial Production (MIT, KAUST et al.)

Researchers from MIT, KAUST, PhotonFoundries, and MITRE have published a paper titled "Foundry-Enabled Patterning of Diamond Quantum Microchiplets for Scalable Quantum Photonics." The paper introduces a manufacturing approach that brings diamond quantum photonics closer to industrial production by using high-precision silicon masks fabricated via commercial semiconductor foundries. This method allows for the production of hundreds of diamond "quantum microchiplets" with improved optical performance and controlled interaction with quantum emitters. The chiplet format enables defective devices to be replaced and integration with existing photonic and electronic circuits, paving the way for large-scale quantum photonic systems.