Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution
Microlens arrays (MLAs) based on the selective wetting have opened new avenues for developing compact and miniaturized imaging and display techniques with ultrahigh resolution beyond the traditional bulky and volumetric optics. However, the selective wetting lenses explored so far have been constrai...
| Κύριοι συγγραφείς: | , , , , , , , , |
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| Άλλοι συγγραφείς: | |
| Μορφή: | Journal Article |
| Γλώσσα: | English |
| Έκδοση: |
2023
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| Θέματα: | |
| Διαθέσιμο Online: | https://hdl.handle.net/10356/169610 |
| _version_ | 1826112219762393088 |
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| author | Liu, Zhihao Hu, Guangwei Ye, Huapeng Wei, Miaoyang Guo, Zhenghao Chen, Kexu Liu, Chen Tang, Biao Zhou, Guofu |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Liu, Zhihao Hu, Guangwei Ye, Huapeng Wei, Miaoyang Guo, Zhenghao Chen, Kexu Liu, Chen Tang, Biao Zhou, Guofu |
| author_sort | Liu, Zhihao |
| collection | NTU |
| description | Microlens arrays (MLAs) based on the selective wetting have opened new avenues for developing compact and miniaturized imaging and display techniques with ultrahigh resolution beyond the traditional bulky and volumetric optics. However, the selective wetting lenses explored so far have been constrained by the lack of precisely defined pattern for highly controllable wettability contrast, thus limiting the available droplet curvature and numerical aperture, which is a major challenge towards the practical high-performance MLAs. Here we report a mold-free and self-assembly approach of mass-production of scalable MLAs, which can also have ultrasmooth surface, ultrahigh resolution, and the large tuning range of the curvatures. The selective surface modification based on tunable oxygen plasma can facilitate the precise pattern with adjusted chemical contrast, thus creating large-scale microdroplets array with controlled curvature. The numerical aperture of the MLAs can be up to 0.26 and precisely tuned by adjusting the modification intensity or the droplet dose. The fabricated MLAs have high-quality surface with subnanometer roughness and allow for record-high resolution imaging up to equivalently 10,328 ppi, as we demonstrated. This study shows a cost-effective roadmap for mass-production of high-performance MLAs, which may find applications in the rapid proliferating integral imaging industry and high-resolution display. |
| first_indexed | 2024-10-01T03:03:43Z |
| format | Journal Article |
| id | ntu-10356/169610 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:03:43Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1696102023-07-28T15:39:57Z Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution Liu, Zhihao Hu, Guangwei Ye, Huapeng Wei, Miaoyang Guo, Zhenghao Chen, Kexu Liu, Chen Tang, Biao Zhou, Guofu School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Chemical Modification Cost Effectiveness Microlens arrays (MLAs) based on the selective wetting have opened new avenues for developing compact and miniaturized imaging and display techniques with ultrahigh resolution beyond the traditional bulky and volumetric optics. However, the selective wetting lenses explored so far have been constrained by the lack of precisely defined pattern for highly controllable wettability contrast, thus limiting the available droplet curvature and numerical aperture, which is a major challenge towards the practical high-performance MLAs. Here we report a mold-free and self-assembly approach of mass-production of scalable MLAs, which can also have ultrasmooth surface, ultrahigh resolution, and the large tuning range of the curvatures. The selective surface modification based on tunable oxygen plasma can facilitate the precise pattern with adjusted chemical contrast, thus creating large-scale microdroplets array with controlled curvature. The numerical aperture of the MLAs can be up to 0.26 and precisely tuned by adjusting the modification intensity or the droplet dose. The fabricated MLAs have high-quality surface with subnanometer roughness and allow for record-high resolution imaging up to equivalently 10,328 ppi, as we demonstrated. This study shows a cost-effective roadmap for mass-production of high-performance MLAs, which may find applications in the rapid proliferating integral imaging industry and high-resolution display. Published version We appreciate the financial support from National Key R&D Program of China (2021YFB3600602, zcgx2022002L), National Natural Science Foundation of China (52175403 and 61805087), Natural Science Foundation of Guangdong Province (2021A1515010623), Special Program on Key Fields for Colleges and Universities of Guangdong Province (2021ZDZX1048), Science and Technology Program of Guangzhou (202102020604), Guangdong Provincial Key Laboratory of Optical Information Materials and Technology (2017B030301007), MOE International Laboratory for Optical Information Technologies, and the 111 Project. G.H acknowledges the NTU Start-up Grant. 2023-07-26T02:31:03Z 2023-07-26T02:31:03Z 2023 Journal Article Liu, Z., Hu, G., Ye, H., Wei, M., Guo, Z., Chen, K., Liu, C., Tang, B. & Zhou, G. (2023). Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution. Light: Science & Applications, 12(1), 143-. https://dx.doi.org/10.1038/s41377-023-01174-7 2047-7538 https://hdl.handle.net/10356/169610 10.1038/s41377-023-01174-7 37286533 2-s2.0-85161324406 1 12 143 en NTU-SUG Light: Science & Applications © 2023 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Chemical Modification Cost Effectiveness Liu, Zhihao Hu, Guangwei Ye, Huapeng Wei, Miaoyang Guo, Zhenghao Chen, Kexu Liu, Chen Tang, Biao Zhou, Guofu Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution |
| title | Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution |
| title_full | Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution |
| title_fullStr | Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution |
| title_full_unstemmed | Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution |
| title_short | Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution |
| title_sort | mold free self assembled scalable microlens arrays with ultrasmooth surface and record high resolution |
| topic | Engineering::Electrical and electronic engineering Chemical Modification Cost Effectiveness |
| url | https://hdl.handle.net/10356/169610 |
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