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

• Published in: Light, science & applications Vol. 12; no. 1; p. 286
• Main Authors: Xiong, Jiahao, Zhang, Zhi-Hong, Li, Zile, Zheng, Peixia, Li, Jiaxin, Zhang, Xuan, Gao, Zihan, Wei, Zhipeng, Zheng, Guoxing, Wang, Shuang-Peng, Liu, Hong-Chao
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 27.11.2023; Springer Nature B.V; Nature Publishing Group
• Subjects: 639/624/1107/510; 639/624/399/1015; Color; Data storage; Image processing; Information storage; Lasers; Microwaves; Optical and Electronic Materials; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; RF and Optical Engineering; Sensors
• ISSN: 2047-7538; 2047-7538
• DOI: 10.1038/s41377-023-01311-2

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 FAPbBr 2.4 I 0.6 and FAPbI 3 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. A compact, filter-free, double-layer perovskite single-pixel detector enables simultaneous recognition of overlapping dual-color metasurface images in complex environments.