Fabrication of close-packed microlens array with superhydrophobicity and high imaging performance

Minjing Li; Qing Yang; Feng Chen; Hao Bian; Xun Hou

doi:10.1117/12.2521578

24 January 2019 Fabrication of close-packed microlens array with superhydrophobicity and high imaging performance

Minjing Li, Qing Yang, Feng Chen, Hao Bian, Xun Hou

Proceedings Volume 11052, Third International Conference on Photonics and Optical Engineering; 110520J (2019) https://doi.org/10.1117/12.2521578
Event: The International Conference on Photonics and Optical Engineering, 2018, Xi'an, China

Abstract

Microlens arrays (MLAs) with special functions such as superhydrophobicity and self-cleaning ability are highly desired in the micro-optical system which is often used in easily polluted environment. In this paper, a new method is demonstrated to fabricate the MLAs with a high fill factor and superhydrophobicity. The method combines femtosecond laser wet etching, polydimethylsiloxane (PDMS) replication and subsequently femtosecond laser direct writing process. The fabricated MLAs decorated with micro/nanoscale hierarchical structures compared with the normal MLAs. Water droplets on the as-prepared surfaces exhibit superhydrophobicity and ultralow adhesion which endows the fabricated samples possess self-cleaning property. The as-fabricated MLAs could find their applications in bioscience research, ocean exploration, endoscopic surgery, microfluidic system, etc.

Citation Download Citation

Minjing Li, Qing Yang, Feng Chen, Hao Bian, and Xun Hou "Fabrication of close-packed microlens array with superhydrophobicity and high imaging performance", Proc. SPIE 11052, Third International Conference on Photonics and Optical Engineering, 110520J (24 January 2019); https://doi.org/10.1117/12.2521578

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