Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging
This study presents the design, fabrication, and characterization of a wide field-of-view (FOV) metalens optimized for capsule endoscopy. The metalens achieved a 165° FOV with a high modulation transfer function (MTF) of 300 lines per millimeter (lp/mm) across the entire FOV, operating in the near-i...
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2024-10-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2024-0393 |
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| _version_ | 1823860486493437952 |
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| author | Moghaddasi Mojtaba Perez Coca Erik Edilson Ye Danni Flores Diego Alejandro Wu Xudong Jalal Abdul Ren Ziming Abrinaei Fahimeh Hu Bin |
| author_facet | Moghaddasi Mojtaba Perez Coca Erik Edilson Ye Danni Flores Diego Alejandro Wu Xudong Jalal Abdul Ren Ziming Abrinaei Fahimeh Hu Bin |
| author_sort | Moghaddasi Mojtaba |
| collection | DOAJ |
| description | This study presents the design, fabrication, and characterization of a wide field-of-view (FOV) metalens optimized for capsule endoscopy. The metalens achieved a 165° FOV with a high modulation transfer function (MTF) of 300 lines per millimeter (lp/mm) across the entire FOV, operating in the near-infrared (NIR) narrow-bandpass imaging at 940 nm. The performance of the metalens-based system is evaluated using two bandwidths, 12 nm and 32 nm, showing MTF values of 0.2 and 0.3 at 250 lp/mm, respectively. The metalens-based system maintains a compact form factor with a total track length of 1.4 mm and a diameter of 1.58 mm. Compared to a traditional 108° FOV endoscope, the nano-optic capsule endoscope demonstrated superior performance in terms of FOV, contrast, and resolution. This advancement represents a significant step toward enhancing diagnostic capabilities in medical imaging, offering improved performance in a more compact package compared to conventional optics. |
| format | Article |
| id | doaj-art-4241e3e672084a849085600fa2bb405b |
| institution | Kabale University |
| issn | 2192-8614 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-4241e3e672084a849085600fa2bb405b2025-02-10T13:24:47ZengDe GruyterNanophotonics2192-86142024-10-0113244417442810.1515/nanoph-2024-0393Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imagingMoghaddasi Mojtaba0Perez Coca Erik Edilson1Ye Danni2Flores Diego Alejandro3Wu Xudong4Jalal Abdul5Ren Ziming6Abrinaei Fahimeh7Hu Bin8National Key Laboratory on Near-Surface Detection, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechatronical Engineering, Beijing Institute of Technology, Beijing100081, ChinaSchool of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing102488, ChinaSchool of Computer Science and Technology, 47833Beijing Institute of Technology, Beijing100081, ChinaNational Key Laboratory on Near-Surface Detection, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaNational Key Laboratory on Near-Surface Detection, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaNational Key Laboratory on Near-Surface Detection, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaDepartment of Physics, Central Tehran Branch, Islamic Azad University, Tehran, IranNational Key Laboratory on Near-Surface Detection, School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, ChinaThis study presents the design, fabrication, and characterization of a wide field-of-view (FOV) metalens optimized for capsule endoscopy. The metalens achieved a 165° FOV with a high modulation transfer function (MTF) of 300 lines per millimeter (lp/mm) across the entire FOV, operating in the near-infrared (NIR) narrow-bandpass imaging at 940 nm. The performance of the metalens-based system is evaluated using two bandwidths, 12 nm and 32 nm, showing MTF values of 0.2 and 0.3 at 250 lp/mm, respectively. The metalens-based system maintains a compact form factor with a total track length of 1.4 mm and a diameter of 1.58 mm. Compared to a traditional 108° FOV endoscope, the nano-optic capsule endoscope demonstrated superior performance in terms of FOV, contrast, and resolution. This advancement represents a significant step toward enhancing diagnostic capabilities in medical imaging, offering improved performance in a more compact package compared to conventional optics.https://doi.org/10.1515/nanoph-2024-0393capsule endoscopymetalensmetasurfacenano-opticsnarrow band imagingwide field of view |
| spellingShingle | Moghaddasi Mojtaba Perez Coca Erik Edilson Ye Danni Flores Diego Alejandro Wu Xudong Jalal Abdul Ren Ziming Abrinaei Fahimeh Hu Bin Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging Nanophotonics capsule endoscopy metalens metasurface nano-optics narrow band imaging wide field of view |
| title | Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging |
| title_full | Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging |
| title_fullStr | Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging |
| title_full_unstemmed | Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging |
| title_short | Wide FOV metalens for near-infrared capsule endoscopy: advancing compact medical imaging |
| title_sort | wide fov metalens for near infrared capsule endoscopy advancing compact medical imaging |
| topic | capsule endoscopy metalens metasurface nano-optics narrow band imaging wide field of view |
| url | https://doi.org/10.1515/nanoph-2024-0393 |
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