A new type of hologram technology has been developed that uses the motion of light as a key, revealing information only under specific conditions. This is gaining attention as a novel approach that can simultaneously overcome the limitations of existing optical communication and security technologies.
A research team led by Professor Jonghwa Shin from the Department of Materials Science and Engineering has developed a next-generation vector hologram metasurface that uses the total angular momentum (TAM) of light as a key for information selection, enabling the realization of different three-dimensional images depending on the state of the incident light.
The study was published in Advanced Materials with Dr. Joonkyo Jung as the first author.
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