Random laser ablated tags for anticounterfeiting purposes and towards physically unclonable functions.

ABSTRACT: Anticounterfeiting tags affixed to products offer a practical solution to combat counterfeiting. To be effective, these tags must be economical, capable of ultrafast production, mass-producible, easy to authenticate, and automatable. We present a universal laser ablation technique that rapidly generates intrinsic, randomly distributed craters (in under a second) on laser-sensitive materials using a nanosecond pulsed infrared laser. The laser and scanning line parameters are balanced to produce randomly distributed craters. The tag patterns demonstrate high randomness, which is analyzed using pattern recognition algorithms and root mean square error deviation. The optical image information of the tag is digitized with a fixed bit uniformity of 0.5 without employing any debiasing algorithm.

SUBMITTER: Gandla S 

PROVIDER: S-EPMC11366023 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature