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Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics

Quantitative phase imaging and measurement of surface topography and fluid dynamics for objects, especially for moving objects, is critical in various fields. Although effective, existing synchronous phase-shifting methods may introduce additional phase changes in the light field due to differences...

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Autores principales: Zhao, Jiaxi, Liu, Lin, Wang, Tianhe, Wang, Xiangzhou, Du, Xiaohui, Hao, Ruqian, Liu, Juanxiu, Zhang, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181755/
https://www.ncbi.nlm.nih.gov/pubmed/37177540
http://dx.doi.org/10.3390/s23094339
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author Zhao, Jiaxi
Liu, Lin
Wang, Tianhe
Wang, Xiangzhou
Du, Xiaohui
Hao, Ruqian
Liu, Juanxiu
Zhang, Jing
author_facet Zhao, Jiaxi
Liu, Lin
Wang, Tianhe
Wang, Xiangzhou
Du, Xiaohui
Hao, Ruqian
Liu, Juanxiu
Zhang, Jing
author_sort Zhao, Jiaxi
collection PubMed
description Quantitative phase imaging and measurement of surface topography and fluid dynamics for objects, especially for moving objects, is critical in various fields. Although effective, existing synchronous phase-shifting methods may introduce additional phase changes in the light field due to differences in optical paths or need specific optics to implement synchronous phase-shifting, such as the beamsplitter with additional anti-reflective coating and a micro-polarizer array. Therefore, we propose a synchronous phase-shifting method based on the Mach–Zehnder interferometer to tackle these issues in existing methods. The proposed method uses common optics to simultaneously acquire four phase-shifted digital holograms with equal optical paths for object and reference waves. Therefore, it can be used to reconstruct the phase distribution of static and dynamic objects with high precision and high resolution. In the experiment, the theoretical resolution of the proposed system was 1.064 µm while the actual resolution could achieve 1.381 µm, which was confirmed by measuring a phase-only resolution chart. Besides, the dynamic phase imaging of a moving standard object was completed to verify the proposed system’s effectiveness. The experimental results show that our proposed method is suitable and promising in dynamic phase imaging and measurement of moving objects using phase-shifting digital holography.
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spelling pubmed-101817552023-05-13 Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics Zhao, Jiaxi Liu, Lin Wang, Tianhe Wang, Xiangzhou Du, Xiaohui Hao, Ruqian Liu, Juanxiu Zhang, Jing Sensors (Basel) Communication Quantitative phase imaging and measurement of surface topography and fluid dynamics for objects, especially for moving objects, is critical in various fields. Although effective, existing synchronous phase-shifting methods may introduce additional phase changes in the light field due to differences in optical paths or need specific optics to implement synchronous phase-shifting, such as the beamsplitter with additional anti-reflective coating and a micro-polarizer array. Therefore, we propose a synchronous phase-shifting method based on the Mach–Zehnder interferometer to tackle these issues in existing methods. The proposed method uses common optics to simultaneously acquire four phase-shifted digital holograms with equal optical paths for object and reference waves. Therefore, it can be used to reconstruct the phase distribution of static and dynamic objects with high precision and high resolution. In the experiment, the theoretical resolution of the proposed system was 1.064 µm while the actual resolution could achieve 1.381 µm, which was confirmed by measuring a phase-only resolution chart. Besides, the dynamic phase imaging of a moving standard object was completed to verify the proposed system’s effectiveness. The experimental results show that our proposed method is suitable and promising in dynamic phase imaging and measurement of moving objects using phase-shifting digital holography. MDPI 2023-04-27 /pmc/articles/PMC10181755/ /pubmed/37177540 http://dx.doi.org/10.3390/s23094339 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Zhao, Jiaxi
Liu, Lin
Wang, Tianhe
Wang, Xiangzhou
Du, Xiaohui
Hao, Ruqian
Liu, Juanxiu
Zhang, Jing
Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics
title Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics
title_full Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics
title_fullStr Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics
title_full_unstemmed Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics
title_short Synchronous Phase-Shifting Interference for High Precision Phase Imaging of Objects Using Common Optics
title_sort synchronous phase-shifting interference for high precision phase imaging of objects using common optics
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10181755/
https://www.ncbi.nlm.nih.gov/pubmed/37177540
http://dx.doi.org/10.3390/s23094339
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