Search by tag «Anti-counterfeiting protection» 4 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

• Unclonable Anti-Counterfeiting Tags Based on Optical Properties of Gold and Silicon Created at ITMO

  Scientists at ITMO have come up with a new way to protect microelectronics devices from counterfeit. The new technology is based on gold and silicon nanoparticles with unique optical properties that make it possible to create unclonable functions with a record information density. Such functions can also be used for generating cryptographic keys. The results of the study were described in Nature Communications.

  18.06.2025

• No More Counterfeiting – Thanks to Photon Crystals from ITMO

  Scientists from ITMO University have suggested a novel production method for anti-forgery protection tags that is cheaper and quicker than its analogs. The new method uses magnet-sensitive photon crystals for ink jet printing. The resulting tags are liquid systems with magnetic particles inside a solid shell; in response to a magnet, the particles assemble into a specific colored pattern. According to its authors, the new method will be more reliable than its counterparts. The study is described in a paper published in Advanced Optical Materials. 

  26.07.2024

• ITMO Researchers Develop Special Ink For Anti-Counterfeiting Protection

  Scientists from ITMO University, Bauman Moscow State Technical University, and the University of Toronto have developed a gel ink that emits light when exposed to monochromatic radiation of various wavelengths. This makes it possible to create complex images when applying tags to products – the scientists believe that the level of anti-counterfeiting protection offered by their invention is much higher than that of the existing counterparts. The research received support from a Russian Science Foundation and the Ministry of Science and Higher Education grant.

  08.10.2021