Diffractive optical network enables multispectral quantitative phase imaging in a snapshot

https://techxplore.com/news/2023-09-diffractive-optical-network-enables-multispectral.html

"capturing multiple phase images across various spectral bands enabling study of spatial refractive index variations and dispersion characteristics of transparent samples such as cells... spatially structured dielectric diffractive layers, each comprising hundreds of thousands deep learning-optimized diffractive transmissive features... monochrome optoelectronic sensor array integration... compact, high-performance multispectral phase imaging systems for biomedical imaging, material science, and environmental monitoring"

Related: Synergy of traditional techniques and deep learning enables single-frame high-precision fringe pattern analysis
https://phys.org/news/2023-09-synergy-traditional-techniques-deep-enables.html