A new method to fabricate optical devices that more closely match their design specifications

https://phys.org/news/2023-12-method-fabricate-optical-devices-specifications.html

"machine learning to build digital simulator mimicking photolithography, utilizing real data to model fabrication of design... user specifies outcomes, then 2 simulators: optical captures how light projected on device's surface, and resist model shows photochemical reaction producing features on surface... in downstream task, learned photolithography simulator applied to physics-based simulator...  miobile cameras, AR, medical imaging, entertainment, and telecommunications"