Augmented reality (AR) glasses, lenses thinner than a human hair, and holograms floating above your fingertips may sound like technologies from science fiction. At the heart of these emerging technologies, however, lies a nanoscale optical device known as a "metasurface.
Source: [Phys.org](https://phys.org/news/2026-09-hidden-disorder-nanodevices-easier.html)