Search by tag «ACS Applied Optical Materials» 1 results

• ITMO Physicists' New Anti-Forgery Tags Can Hide in Plain Sight

  Researchers from ITMO’s School of Physics and Engineering have developed optical labels made with gold and silicon. The nanostructures’ asymmetric shape determines their optical response to a specific direction of light: the tags become visible and change color from yellow to green only at a certain angle (57-75 degrees) of lateral lighting, while no effect is observed at other angles. This solution will find its applications in the authentication of optical chips, sensors, and other microelectronics. The corresponding paper was published in ACS Applied Optical Materials.

  25.07.2025