Analog optical computing + high-resolution imaging in a single flat-meta-lens component for biological imaging and machine vision

https://www.eurekalert.org/news-releases/1145813

"single-layer dielectric metasurface using spin-multiplexed point-spread-function for simultaneous high-resolution imaging/ arbitrary-order optical spatial differentiation... routes orthogonal spin states of light (left-/ right-handed circular polarizations) enabling compact flat optical element to processes spatial edge detection/ standard imaging concurrently without complex cascading setups... consolidates bulky refractive lens systems into sub-wavelength footprint for ultra-compact optical computing"