Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens
Near-infrared imaging devices are extensively used in medical diagnosis, night vision, and security monitoring. However, existing traditional imaging devices rely on a bunch of refracting lenses, resulting in large, bulky imaging systems that restrict their broader utility. The emergence of flat met...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/15/6/453 |
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| author | Zhixi Li Wei Liu Yubing Zhang Feng Tang Liming Yang Xin Ye |
| author_facet | Zhixi Li Wei Liu Yubing Zhang Feng Tang Liming Yang Xin Ye |
| author_sort | Zhixi Li |
| collection | DOAJ |
| description | Near-infrared imaging devices are extensively used in medical diagnosis, night vision, and security monitoring. However, existing traditional imaging devices rely on a bunch of refracting lenses, resulting in large, bulky imaging systems that restrict their broader utility. The emergence of flat meta-optics offers a potential solution to these limitations, but existing research on compact integrated devices based on near-infrared meta-optics is insufficient. In this study, we propose an integrated NIR imaging camera that utilizes large-size metalens with a silicon nanostructure with high transmission efficiency. Through the detection of target and animal and plant tissue samples, the ability to capture biological structures and their imaging performance was verified. Through further integration of the NIR imaging device, the device significantly reduces the size and weight of the system and optimizes the aperture to achieve excellent image brightness and contrast. Additionally, venous imaging of human skin shows the potential of the device for biomedical applications. This research has an important role in promoting the miniaturization and lightweight of near-infrared optical imaging devices, which is expected to be applied to medical testing and night vision imaging. |
| format | Article |
| id | doaj-art-d00d6517666e4a4cb7d3f7b672293a7e |
| institution | OA Journals |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-d00d6517666e4a4cb7d3f7b672293a7e2025-08-20T01:48:57ZengMDPI AGNanomaterials2079-49912025-03-0115645310.3390/nano15060453Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si MetalensZhixi Li0Wei Liu1Yubing Zhang2Feng Tang3Liming Yang4Xin Ye5Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaLaser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, ChinaNear-infrared imaging devices are extensively used in medical diagnosis, night vision, and security monitoring. However, existing traditional imaging devices rely on a bunch of refracting lenses, resulting in large, bulky imaging systems that restrict their broader utility. The emergence of flat meta-optics offers a potential solution to these limitations, but existing research on compact integrated devices based on near-infrared meta-optics is insufficient. In this study, we propose an integrated NIR imaging camera that utilizes large-size metalens with a silicon nanostructure with high transmission efficiency. Through the detection of target and animal and plant tissue samples, the ability to capture biological structures and their imaging performance was verified. Through further integration of the NIR imaging device, the device significantly reduces the size and weight of the system and optimizes the aperture to achieve excellent image brightness and contrast. Additionally, venous imaging of human skin shows the potential of the device for biomedical applications. This research has an important role in promoting the miniaturization and lightweight of near-infrared optical imaging devices, which is expected to be applied to medical testing and night vision imaging.https://www.mdpi.com/2079-4991/15/6/453dielectric metasurfacemetalensnear-infrared devicelarge aperture |
| spellingShingle | Zhixi Li Wei Liu Yubing Zhang Feng Tang Liming Yang Xin Ye Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens Nanomaterials dielectric metasurface metalens near-infrared device large aperture |
| title | Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens |
| title_full | Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens |
| title_fullStr | Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens |
| title_full_unstemmed | Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens |
| title_short | Compact Near-Infrared Imaging Device Based on a Large-Aperture All-Si Metalens |
| title_sort | compact near infrared imaging device based on a large aperture all si metalens |
| topic | dielectric metasurface metalens near-infrared device large aperture |
| url | https://www.mdpi.com/2079-4991/15/6/453 |
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