Plasmonic Metasurfaces Produce Print and Holograms Simultaneously

In the realm of optical technology, a new process is emerging that uses ultrathin plasmonic metasurfaces, capable of simultaneously enabling full-colour printing and holography on a centimetre scale. These metasurfaces leverage photonic spin– orbit interactions excited by surface plasmon polaritons (SPP), opening the door to a new era of high-security applications and mass-produced optical devices.