Perovskite single-pixel detector for dual-color metasurface imaging recognition in complex environment

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Abstract

Highly efficient multi-dimensional data storage and extraction are two primary ends for the design and fabrication of emerging optical materials. Although metasurfaces show great potential in information storage due to their modulation for different degrees of freedom of light, a compact and efficient detector for relevant multi-dimensional data retrieval is still a challenge, especially in complex environments. Here, we demonstrate a multi-dimensional image storage and retrieval process by using a dual-color metasurface and a double-layer integrated perovskite single-pixel detector (DIP-SPD). Benefitting from the photoelectric response characteristics of the FAPbBr2.4I0.6 and FAPbI3 films and their stacked structure, our filter-free DIP-SPD can accurately reconstruct different colorful images stored in a metasurface within a single-round measurement, even in complex environments with scattering media or strong background noise. Our work not only provides a compact, filter-free, and noise-robust detector for colorful image extraction in a metasurface, but also paves the way for color imaging application of perovskite-like bandgap tunable materials.

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Xiong, J., Zhang, Z. H., Li, Z., Zheng, P., Li, J., Zhang, X., … Liu, H. C. (2023). Perovskite single-pixel detector for dual-color metasurface imaging recognition in complex environment. Light: Science and Applications, 12(1). https://doi.org/10.1038/s41377-023-01311-2

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