A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation

Diffractive optical elements (DOEs) are specialized optical components that manipulate light through diffraction for various applications, including holography, spectroscopy, augmented reality (AR) and virtual reality (VR), and light detection and ranging (LiDAR). The performance of DOEs is highly d...

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Main Authors: Xingang Dai, Yanjun Hu, Bowen Niu, Qun Dai, Yu Ao, Hongru Zhang, Gaoshan Jing, Yuan Li, Guofang Fan
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/15/2/138
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author Xingang Dai
Yanjun Hu
Bowen Niu
Qun Dai
Yu Ao
Hongru Zhang
Gaoshan Jing
Yuan Li
Guofang Fan
author_facet Xingang Dai
Yanjun Hu
Bowen Niu
Qun Dai
Yu Ao
Hongru Zhang
Gaoshan Jing
Yuan Li
Guofang Fan
author_sort Xingang Dai
collection DOAJ
description Diffractive optical elements (DOEs) are specialized optical components that manipulate light through diffraction for various applications, including holography, spectroscopy, augmented reality (AR) and virtual reality (VR), and light detection and ranging (LiDAR). The performance of DOEs is highly determined by fabricated materials and fabrication methods, in addition to the numerical simulation design. This paper presents a microfabrication technique optimized for DOEs, enabling precise control of critical parameters, such as refractive index (RI) and thickness. Using photolithography, we fabricated high-precision photoresist patterns on silicon and sapphire substrates, with 3 × 3 and 3 × 5 DOE beam splitter as examples. The results show a strong match between simulation and experimental data, with discrepancies of just 0.53% and 0.57% for DOE on silicon and sapphire substrates, respectively. This approach offers potential for advancing high-performance DOE devices in semiconductor manufacturing, supporting next-generation optical systems.
format Article
id doaj-art-2795d6629c504424bc37d8443d1a923e
institution Kabale University
issn 2079-4991
language English
publishDate 2025-01-01
publisher MDPI AG
record_format Article
series Nanomaterials
spelling doaj-art-2795d6629c504424bc37d8443d1a923e2025-01-24T13:44:16ZengMDPI AGNanomaterials2079-49912025-01-0115213810.3390/nano15020138A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical SimulationXingang Dai0Yanjun Hu1Bowen Niu2Qun Dai3Yu Ao4Hongru Zhang5Gaoshan Jing6Yuan Li7Guofang Fan8Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaInstitute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, ChinaInstitute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, ChinaShanghai Institute of Measurement and Testing Technology, National Center of Measurement and Testing for East China, National Center of Testing Technology, Shanghai 201203, ChinaKey Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaDiffractive optical elements (DOEs) are specialized optical components that manipulate light through diffraction for various applications, including holography, spectroscopy, augmented reality (AR) and virtual reality (VR), and light detection and ranging (LiDAR). The performance of DOEs is highly determined by fabricated materials and fabrication methods, in addition to the numerical simulation design. This paper presents a microfabrication technique optimized for DOEs, enabling precise control of critical parameters, such as refractive index (RI) and thickness. Using photolithography, we fabricated high-precision photoresist patterns on silicon and sapphire substrates, with 3 × 3 and 3 × 5 DOE beam splitter as examples. The results show a strong match between simulation and experimental data, with discrepancies of just 0.53% and 0.57% for DOE on silicon and sapphire substrates, respectively. This approach offers potential for advancing high-performance DOE devices in semiconductor manufacturing, supporting next-generation optical systems.https://www.mdpi.com/2079-4991/15/2/138diffractive optical elementmicrofabricationuniformityphotolithography
spellingShingle Xingang Dai
Yanjun Hu
Bowen Niu
Qun Dai
Yu Ao
Hongru Zhang
Gaoshan Jing
Yuan Li
Guofang Fan
A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation
Nanomaterials
diffractive optical element
microfabrication
uniformity
photolithography
title A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation
title_full A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation
title_fullStr A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation
title_full_unstemmed A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation
title_short A Microfabrication Technique for High-Performance Diffractive Optical Elements Tailored for Numerical Simulation
title_sort microfabrication technique for high performance diffractive optical elements tailored for numerical simulation
topic diffractive optical element
microfabrication
uniformity
photolithography
url https://www.mdpi.com/2079-4991/15/2/138
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