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

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 pl...

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Main Authors: Sheng-Yuan Zhang, Hsi-Fu Shih, Chuen-Lin Tien, Han-Yen Tu
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/16/1/26
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author Sheng-Yuan Zhang
Hsi-Fu Shih
Chuen-Lin Tien
Han-Yen Tu
author_facet Sheng-Yuan Zhang
Hsi-Fu Shih
Chuen-Lin Tien
Han-Yen Tu
author_sort Sheng-Yuan Zhang
collection DOAJ
description 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.
format Article
id doaj-art-d5783144753e4308946b3e7d4960220e
institution Kabale University
issn 2072-666X
language English
publishDate 2024-12-01
publisher MDPI AG
record_format Article
series Micromachines
spelling doaj-art-d5783144753e4308946b3e7d4960220e2025-01-24T13:41:53ZengMDPI AGMicromachines2072-666X2024-12-011612610.3390/mi16010026Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid CrystalsSheng-Yuan Zhang0Hsi-Fu Shih1Chuen-Lin Tien2Han-Yen Tu3Department of Mechanical Engineering, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Mechanical Engineering, National Chung Hsing University, Taichung 40227, TaiwanDepartment of Electrical Engineering, Feng Chia University, Taichung 40724, TaiwanDepartment of Electrical Engineering, Chinese Culture University, Taipei 11114, TaiwanBased 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.https://www.mdpi.com/2072-666X/16/1/263D printingphotopolymerizationpolymer-dispersed liquid crystal (PDLC)diffraction gratingFresnel zone plate
spellingShingle Sheng-Yuan Zhang
Hsi-Fu Shih
Chuen-Lin Tien
Han-Yen Tu
Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals
Micromachines
3D printing
photopolymerization
polymer-dispersed liquid crystal (PDLC)
diffraction grating
Fresnel zone plate
title Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals
title_full Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals
title_fullStr Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals
title_full_unstemmed Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals
title_short Creating Tunable Micro-Optical Components via Photopolymerization 3D Printing Combined with Polymer-Dispersed Liquid Crystals
title_sort creating tunable micro optical components via photopolymerization 3d printing combined with polymer dispersed liquid crystals
topic 3D printing
photopolymerization
polymer-dispersed liquid crystal (PDLC)
diffraction grating
Fresnel zone plate
url https://www.mdpi.com/2072-666X/16/1/26
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