Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90%
Microlens arrays (MLAs) are essential for light collection, extraction, and high-resolution imaging. However, most reported MLAs have a limited filling factor. Here, we demonstrate MLAs using three different UV-curing optical adhesives based on the electrohydrodynamic inkjet (E-jet) printing techniq...
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MDPI AG
2025-05-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/5/446 |
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| author | Linkun Zhong Weixuan Liu Hongbo Gong Ye Li Xueqian Zhao Delai Kong Qingguo Du Bing Xu Xiaoli Zhang Yan Jun Liu |
| author_facet | Linkun Zhong Weixuan Liu Hongbo Gong Ye Li Xueqian Zhao Delai Kong Qingguo Du Bing Xu Xiaoli Zhang Yan Jun Liu |
| author_sort | Linkun Zhong |
| collection | DOAJ |
| description | Microlens arrays (MLAs) are essential for light collection, extraction, and high-resolution imaging. However, most reported MLAs have a limited filling factor. Here, we demonstrate MLAs using three different UV-curing optical adhesives based on the electrohydrodynamic inkjet (E-jet) printing technique. The highest filling factor of 89.91% is achieved. By controlling the curvature of the microlens via the surface treatment of the substrate, a series of MLAs with different numerical apertures can be obtained. With the high-consistency printing technique, the demonstrated high filling factor MLAs could be potentially useful to improve the performance of optical imaging and sensing systems. |
| format | Article |
| id | doaj-art-1d0e3d7ff10b45a6abc48b8e7ebfd30e |
| institution | OA Journals |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
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| series | Photonics |
| spelling | doaj-art-1d0e3d7ff10b45a6abc48b8e7ebfd30e2025-08-20T01:56:41ZengMDPI AGPhotonics2304-67322025-05-0112544610.3390/photonics12050446Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90%Linkun Zhong0Weixuan Liu1Hongbo Gong2Ye Li3Xueqian Zhao4Delai Kong5Qingguo Du6Bing Xu7Xiaoli Zhang8Yan Jun Liu9School of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaSchool of Information Engineering, Wuhan University of Technology, Wuhan 430070, ChinaShenzhen Placnk Innovation Technology Co., Ltd., Shenzhen 518112, ChinaSchool of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaMicrolens arrays (MLAs) are essential for light collection, extraction, and high-resolution imaging. However, most reported MLAs have a limited filling factor. Here, we demonstrate MLAs using three different UV-curing optical adhesives based on the electrohydrodynamic inkjet (E-jet) printing technique. The highest filling factor of 89.91% is achieved. By controlling the curvature of the microlens via the surface treatment of the substrate, a series of MLAs with different numerical apertures can be obtained. With the high-consistency printing technique, the demonstrated high filling factor MLAs could be potentially useful to improve the performance of optical imaging and sensing systems.https://www.mdpi.com/2304-6732/12/5/446microlens arrayE-jet printingfilling factornumerical aperture |
| spellingShingle | Linkun Zhong Weixuan Liu Hongbo Gong Ye Li Xueqian Zhao Delai Kong Qingguo Du Bing Xu Xiaoli Zhang Yan Jun Liu Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90% Photonics microlens array E-jet printing filling factor numerical aperture |
| title | Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90% |
| title_full | Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90% |
| title_fullStr | Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90% |
| title_full_unstemmed | Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90% |
| title_short | Electrohydrodynamically Printed Microlens Arrays with the High Filling Factor near 90% |
| title_sort | electrohydrodynamically printed microlens arrays with the high filling factor near 90 |
| topic | microlens array E-jet printing filling factor numerical aperture |
| url | https://www.mdpi.com/2304-6732/12/5/446 |
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