Researchers have developed advanced optical security features that use a two-piece metamaterial system to create a difficult-to-replicate optical phenomenon. The new security features could offer improved forgery protection for high-value products or banknotes and enhance encryption of information such as pin numbers that are physically sent to recipients.
from Top Technology News -- ScienceDaily https://ift.tt/2AcmB59
Thursday 12 September 2019
Metamaterials used to create two-part optical security features
Posted By: Unknown - September 12, 2019About Unknown
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