PHOTOLUMINESCENT AUTHENTICATION DEVICES, SYSTEMS, AND METHODS

摘要

A system and method for authentication includes a photoluminescent label including a photoluminescent material having a decay time, the photoluminescent material being configured to absorb an incident radiation from a radiation source and to emit an emitted radiation having a spectral signature after removal of the radiation source, and a sensor configured to measure the spectral signature in the emitted radiation during the decay time.