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 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.
Authors
- Xueqian Zhao (ORCID: https://orcid.org/0000-0002-3215-0041)
- Weixuan Liu (ORCID: https://orcid.org/0000-0002-8079-1089)
- Hai‐Peng Gong (ORCID: https://orcid.org/0000-0003-0320-0246)
- Delai Kong
- Xiaoli Zhang (ORCID: https://orcid.org/0000-0002-3603-0653)
- Qingguo Du (ORCID: https://orcid.org/0000-0001-9283-7323)
- Linkun Zhong (ORCID: https://orcid.org/0009-0005-2941-2599)
- Ye Li (ORCID: https://orcid.org/0000-0002-8102-1959)
- Yanjun Liu (ORCID: https://orcid.org/0000-0001-8724-0434)
- Bing Xu (ORCID: https://orcid.org/0000-0003-3103-6017)
Institutions
- Guangdong University of Technology (CN)
- Wuhan University of Technology (CN)
- Southern University of Science and Technology (CN)
- Shenzhen Planck Innovation (China) (CN)
Publication Details
- Journal
- Photonics
- Published
- 2025-05-05
- DOI
- https://doi.org/10.3390/photonics12050446
- Citations
- 1
- Primary Topic
- Electrohydrodynamics and Fluid Dynamics
- Type
- article
- Field-Weighted Citation Impact
- 0.73
Funders
- National Natural Science Foundation of China
- Science, Technology and Innovation Commission of Shenzhen Municipality
- Development and Reform Commission of Shenzhen Municipality
- Southern University of Science and Technology
- National Key Research and Development Program of China
- Basic and Applied Basic Research Foundation of Guangdong Province
- Division of Graduate Education