Gradual transition of metalens from single-device optimization to system-level integrated arrays based on increasing structural complexity

https://www.eurekalert.org/news-releases/1095494

"broadening achromatic bandwidth/ increasing aperture size, functional operation extension into IR/ UV using nonlinear materials... dual-metalens systems: vertically stacked enables more flexible aberration control/ varifocal systems, laterally aligned mimics human visual mechanism with binocular metalens demonstrating intelligent depth sensing... 3D reconstruction integral imaging, precision measurement light-field imaging, quantum light sources generating high-dimensional/ multi-photon entangled states"