3D Printing Mesoscale Optical Components with a Low-Cost Resin Printer Integrated with a Fiber-Optic Taper,ACS Photonics

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3D Printing Mesoscale Optical Components with a Low-Cost Resin Printer Integrated with a Fiber-Optic Taper
ACS Photonics ( IF 6.5 ) Pub Date : 2022-05-26 , DOI: 10.1021/acsphotonics.2c00125
Parvathi Nair S ₁ , Hongtao Wang ₁ , Jonathan Trisno ₂ , Qifeng Ruan ₁ , Soroosh Daqiqeh Rezaei ₁ , Robert E. Simpson ₁ , Joel K. W. Yang _{1,

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Affiliation

Design flexibility, ease of use, and reduced wastage have made additive manufacturing well suited for producing functional prints in many fields including optics. As surface quality is compromised in many cases, postprocessing or better fabrication techniques are required. Advanced fabrication techniques such as two-photon polymerization lithography (TPL) have enabled nano- and microscale fabrications with high surface quality, while postprocessing improves the surface quality of macroscale structures. However, fabricating mesoscale optical components is still challenging as these structures require a lot of time to fabricate with TPL and postprocessing capabilities are limited at these dimensions. Low-cost resin printers are now equipped with 4K resolution screens claiming pixel sizes of ∼35 μm. Still, improvements in print resolution and surface smoothness could be obtained with a simple modification to the setup. Here, we study the impact of introducing a fiber-optic taper to demagnify the images from the screen of a low-cost hobbyist grade resin printer for mesoscale (100 μm to 5 mm) fabrication, achieving a resolution of ∼15 μm half-pitch. We compared normal and modified printing techniques, with gains in resolution used to fabricate a working Fresnel lens.

中文翻译：

使用集成光纤锥的低成本树脂打印机 3D 打印中尺度光学元件

设计灵活性、易用性和减少浪费使增材制造非常适合在包括光学在内的许多领域生产功能性印刷品。由于在许多情况下表面质量会受到影响，因此需要后处理或更好的制造技术。双光子聚合光刻 (TPL) 等先进的制造技术已经实现了具有高表面质量的纳米和微米级制造，而后处理提高了宏观结构的表面质量。然而，制造中尺度光学元件仍然具有挑战性，因为这些结构需要大量时间来制造 TPL，并且后处理能力在这些尺寸上受到限制。低成本树脂打印机现在配备 4K 分辨率屏幕，像素尺寸约为 35 μm。仍然，只需对设置进行简单修改，即可提高打印分辨率和表面平滑度。在这里，我们研究了引入光纤锥形以缩小来自低成本爱好者级树脂打印机屏幕的图像的影响，用于中尺度（100 μm 至 5 mm）制造，实现 ∼15 μm 半间距分辨率. 我们比较了普通和改进的印刷技术，以及用于制造工作菲涅尔透镜的分辨率增益。

更新日期：2022-05-26

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