Optical secret sharing with cascaded metasurface holography

P. Georgi, Q. Wei, B. Sain, C. Schlickriede, Y. Wang, L. Huang, T. Zentgraf, Science Advances (2021).

Journal Article | Published | English
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Abstract
<jats:p>Secret sharing is a well-established cryptographic primitive for storing highly sensitive information like encryption keys for encoded data. It describes the problem of splitting a secret into different shares, without revealing any information to its shareholders. Here, we demonstrate an all-optical solution for secret sharing based on metasurface holography. In our concept, metasurface holograms are used as spatially separable shares that carry encrypted messages in the form of holographic images. Two of these shares can be recombined by bringing them close together. Light passing through this stack of metasurfaces accumulates the phase shift of both holograms and optically reconstructs the secret with high fidelity. In addition, the hologram generated by each single metasurface can uniquely identify its shareholder. Furthermore, we demonstrate that the inherent translational alignment sensitivity between two stacked metasurface holograms can be used for spatial multiplexing, which can be further extended to realize optical rulers.</jats:p>
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Science Advances
Article Number
eabf9718
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Georgi P, Wei Q, Sain B, et al. Optical secret sharing with cascaded metasurface holography. Science Advances. 2021. doi:10.1126/sciadv.abf9718
Georgi, P., Wei, Q., Sain, B., Schlickriede, C., Wang, Y., Huang, L., & Zentgraf, T. (2021). Optical secret sharing with cascaded metasurface holography. Science Advances. https://doi.org/10.1126/sciadv.abf9718
@article{Georgi_Wei_Sain_Schlickriede_Wang_Huang_Zentgraf_2021, title={Optical secret sharing with cascaded metasurface holography}, DOI={10.1126/sciadv.abf9718}, number={eabf9718}, journal={Science Advances}, author={Georgi, Philip and Wei, Qunshuo and Sain, Basudeb and Schlickriede, Christian and Wang, Yongtian and Huang, Lingling and Zentgraf, Thomas}, year={2021} }
Georgi, Philip, Qunshuo Wei, Basudeb Sain, Christian Schlickriede, Yongtian Wang, Lingling Huang, and Thomas Zentgraf. “Optical Secret Sharing with Cascaded Metasurface Holography.” Science Advances, 2021. https://doi.org/10.1126/sciadv.abf9718.
P. Georgi et al., “Optical secret sharing with cascaded metasurface holography,” Science Advances, 2021.
Georgi, Philip, et al. “Optical Secret Sharing with Cascaded Metasurface Holography.” Science Advances, eabf9718, 2021, doi:10.1126/sciadv.abf9718.
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