高光谱成像
光学
全光谱成像
探测器
光谱成像
半最大全宽
光学滤波器
光探测
光电探测器
电介质
材料科学
物理
计算机科学
光电子学
人工智能
作者
Zhipeng Wu,zhiqing zhang,Yijing Xu,Yusheng Zhai,Canran Zhang,bozhi wang,Qilong Wang
出处
期刊:Optics Letters
[The Optical Society]
日期:2022-08-30
卷期号:47 (17): 4548-4548
被引量:5
摘要
Metasurface filters are a compact, lightweight, and inexpensive solution for the miniaturized hyperspectral imaging system. However, the emerging applicability of these filters is limited by the trade-off between spatial and spectral resolutions. In this study, we establish and experimentally demonstrate a compact hyperspectral photodetection method using random all-dielectric metasurface filters that are directly integrated on the detectors. Based on compressive sensing algorithms, the compact photodetectors can accurately reconstruct the incident spectrum in the visible range. The minimum full width at half maximum (FWHM) of the spectrum reconstructed is 4.8 nm, which fully satisfies the requirements of hyperspectral imaging. The proposed method may be applied in the design, development, and measurement of compact hyperspectral imaging systems.
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