通过光聚合3D打印与聚合物分散液晶相结合制备可调谐微光学元件

Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals.

作者信息

Zhang Sheng-Yuan, Shih Hsi-Fu, Tien Chuen-Lin, Tu Han-Yen

机构信息

Department of Mechanical Engineering, National Chung Hsing University, Taichung 40227, Taiwan.

Department of Electrical Engineering, Feng Chia University, Taichung 40724, Taiwan.

出版信息

Micromachines (Basel). 2024 Dec 28;16(1):26. doi: 10.3390/mi16010026.

DOI:10.3390/mi16010026

PMID:39858682

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11767883/

Abstract

Based on additive manufacturing via photopolymerization, this study combines polymer-dispersed liquid crystal (PDLC) technology with 3D printing technology to produce tunable micro-optical components with switchable diffraction or focusing characteristics. The diffraction grating and Fresnel zone plate are the research targets. Their structures are designed and simulated to achieve expected optical functions. A liquid crystal display (LCD) 3D printer is used to produce structures on transparent conductive substrates. The printed structures are filled with PDLCs and covered with transparent conductive substrates to achieve tunable functions. The proposed configurations are implemented and verified. The experimental results show that the diffraction efficiency of the 0th order increases from 15% to 50% for the diffraction grating and the focusing spot intensity decreases from 74% to 12% after the application of an electric field. These results demonstrate the feasibility of the proposed tunable optical component configurations.

摘要

基于光聚合增材制造技术，本研究将聚合物分散液晶（PDLC）技术与3D打印技术相结合，以生产具有可切换衍射或聚焦特性的可调谐微光学元件。衍射光栅和菲涅耳波带片是研究对象。对它们的结构进行了设计和模拟，以实现预期的光学功能。使用液晶显示器（LCD）3D打印机在透明导电基板上制作结构。将印刷结构填充PDLC并覆盖透明导电基板以实现可调谐功能。所提出的配置得到了实现和验证。实验结果表明，对于衍射光栅，施加电场后零级衍射效率从15%提高到50%，聚焦光斑强度从74%降低到12%。这些结果证明了所提出的可调谐光学元件配置的可行性。