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- W4280534578 abstract "The combination of metasurface and holographic technology is the most cutting-edge development, but most of the proposed designs are static and do not allow active changes through external stimulation after fabrication, which takes only a limited part of the advantage provided by metasurface. Here, we propose and demonstrate a switchable hybrid active metasurface hologram in the terahertz (THz) regime composed of dynamic pixels (VO 2 -CSRR) and static pixels (Au-CSRR) based on an intelligent algorithm, which can display some/all information in different temperature ranges. In particular, such performance shows excellent potential in the field of optical communication security, making it a promising candidate. To prove this possibility, we propose a scheme for optical information encryption/decryption and transmission, which takes metasurfaces as carriers of encrypted information and state/polarization/positions as the secret key components. Only when the two matches correctly can we get the hidden real information. The security of our proposed scheme has reached an unprecedented level, providing a new road for communication security." @default.
- W4280534578 created "2022-05-22" @default.
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- W4280534578 date "2022-05-24" @default.
- W4280534578 modified "2023-10-14" @default.
- W4280534578 title "Terahertz switchable VO<sub>2</sub>-Au hybrid active metasurface holographic encryption" @default.
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- W4280534578 doi "https://doi.org/10.1364/oe.461424" @default.
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