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Updated: Jul 9, 2025

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
Published on: September 25, 2020
This study introduces a novel multilevel optical holographic encryption (OHE) method using the Tiger Amulet (TA) concept. It enhances security by using deceptive content and exploiting hologram robustness for improved data protection.
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