• Advanced Photonics
  • Vol. 7, Issue 4, 046006 (2025)
Jiacheng Sun1,2,†, Wenjing Shen1, Junyi Wang1,2, Rongtao Yu1,2..., Jian Li1, Chunyu Huang1, Xin Ye1, Zhaoyu Cheng2, Jiefu Yu2, Peng Wang2, Chen Chen1,*, Shining Zhu1 and Tao Li1,*|Show fewer author(s)
Author Affiliations
  • 1Nanjing University, College of Engineering and Applied Sciences, National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing, China
  • 2MetaCV Technology Co., Ltd., Nanjing, China
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    DOI: 10.1117/1.AP.7.4.046006 Cite this Article Set citation alerts
    Jiacheng Sun, Wenjing Shen, Junyi Wang, Rongtao Yu, Jian Li, Chunyu Huang, Xin Ye, Zhaoyu Cheng, Jiefu Yu, Peng Wang, Chen Chen, Shining Zhu, Tao Li, "High-resolution and wide-field microscopic imaging with a monolithic meta-doublet under annular illumination," Adv. Photon. 7, 046006 (2025) Copy Citation Text show less

    Abstract

    Metalenses have exhibited significant promise across various applications due to their ultrathin, lightweight, and flat architecture, which allows for integration with microelectronic devices. However, their overall imaging capabilities, particularly in microscopy, are hindered by substantial off-axis aberrations that limit both the field of view (FOV) and resolution. To address these issues, we introduce a meta-microscope that utilizes a metalens doublet incorporated with annular illumination, enabling wide FOV and high-resolution imaging in a compact design. The metalens-doublet effectively mitigates off-axis aberrations, whereas annular illumination boosts resolution. To validate this design, we constructed and tested the meta-microscope system, attaining a record resolution of 310 nm (for metalens image) with a 150 μm FOV at 470 nm wavelength. Moreover, by utilizing the integration of metasurface, we implemented a compact prototype achieving an impressive 1-mm FOV with a resolution of 620 nm. Our experimental results demonstrate high-quality microscopic bio-images that are comparable to those obtained from traditional microscopes within a compact prototype, highlighting its potential applications in portable and convenient settings, such as biomedical imaging, mobile monitoring, and outdoor research.
    ϕ(r)=n=110an(rR)2n,

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    Jiacheng Sun, Wenjing Shen, Junyi Wang, Rongtao Yu, Jian Li, Chunyu Huang, Xin Ye, Zhaoyu Cheng, Jiefu Yu, Peng Wang, Chen Chen, Shining Zhu, Tao Li, "High-resolution and wide-field microscopic imaging with a monolithic meta-doublet under annular illumination," Adv. Photon. 7, 046006 (2025)
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