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Updated: Feb 22, 2026

Demonstration of Spin-Multiplexed and Direction-Multiplexed All-Dielectric Visible Metaholograms
Published on: September 25, 2020
Hong-Chao Liu1, Biao Yang1, Qinghua Guo1,2
1School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
Researchers combined metasurface holograms with ghost imaging (GI) to create secure, single-pixel imaging. This novel approach enables helicity-dependent image reconstruction and optical encryption, enhancing security in imaging technologies.
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