FIELD: physics.
SUBSTANCE: security element for identification of articles relates to counterfeit protection and authentication of securities, which can be used for concealed marking of various objects in order to prevent unauthorised production of said objects and simplify authentication thereof. The security element comprises a stack of polymer layers glued to each other, each having a certain type of semiconductor quantum rods which luminesce in different spectral regions and are oriented in directions orthogonal to each other.
EFFECT: high reliability of the security element and longer service life thereof.
4 dwg
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