Auto-focus methods in laser systems for use in high precision materials processing: a review

High-precision focusing for laser systems has played an essential role in materials processing. Over the last few decades, the auto-focus (AF) mechanism has grown in popularity, providing numerous rapid and precise auto-focusing systems that have been launched and extensively installed in control sy...

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Main Authors: Dinh, Viet Hoang, Hoang, Le Phuong, Vu, Yen Nhi Thai, Cao, Xuan Binh
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/172155
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1721552023-11-27T04:54:51Z Auto-focus methods in laser systems for use in high precision materials processing: a review Dinh, Viet Hoang Hoang, Le Phuong Vu, Yen Nhi Thai Cao, Xuan Binh School of Physical and Mathematical Sciences Science::Physics Auto Focus Focal Positions High-precision focusing for laser systems has played an essential role in materials processing. Over the last few decades, the auto-focus (AF) mechanism has grown in popularity, providing numerous rapid and precise auto-focusing systems that have been launched and extensively installed in control systems with lasers. Several approaches for laser technology, when embedded in a system, may deliver the best laser focus to the users in a matter of seconds, freeing users from manual focusing. The AF system has matured in terms of both technology and market within years of development. These systems are developed on the basis of different mechanisms including optical-based, image-based, acoustic signal-based, and plasma-based methods. Furthermore, besides analyzing the focus detection techniques, methods for controlling the laser focal position are also discussed. This article provides an overview of these auto-focusing techniques in laser systems for use in measurements and materials processing as well as the use of deformable optics in controlling laser focal position. This study was funded by the National Foundation for Science and Technology Development (103.03–2020.48). 2023-11-27T04:54:51Z 2023-11-27T04:54:51Z 2023 Journal Article Dinh, V. H., Hoang, L. P., Vu, Y. N. T. & Cao, X. B. (2023). Auto-focus methods in laser systems for use in high precision materials processing: a review. Optics and Lasers in Engineering, 167, 107625-. https://dx.doi.org/10.1016/j.optlaseng.2023.107625 0143-8166 https://hdl.handle.net/10356/172155 10.1016/j.optlaseng.2023.107625 2-s2.0-85153873609 167 107625 en Optics and Lasers in Engineering © 2023 Published by Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
Auto Focus
Focal Positions
spellingShingle Science::Physics
Auto Focus
Focal Positions
Dinh, Viet Hoang
Hoang, Le Phuong
Vu, Yen Nhi Thai
Cao, Xuan Binh
Auto-focus methods in laser systems for use in high precision materials processing: a review
description High-precision focusing for laser systems has played an essential role in materials processing. Over the last few decades, the auto-focus (AF) mechanism has grown in popularity, providing numerous rapid and precise auto-focusing systems that have been launched and extensively installed in control systems with lasers. Several approaches for laser technology, when embedded in a system, may deliver the best laser focus to the users in a matter of seconds, freeing users from manual focusing. The AF system has matured in terms of both technology and market within years of development. These systems are developed on the basis of different mechanisms including optical-based, image-based, acoustic signal-based, and plasma-based methods. Furthermore, besides analyzing the focus detection techniques, methods for controlling the laser focal position are also discussed. This article provides an overview of these auto-focusing techniques in laser systems for use in measurements and materials processing as well as the use of deformable optics in controlling laser focal position.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Dinh, Viet Hoang
Hoang, Le Phuong
Vu, Yen Nhi Thai
Cao, Xuan Binh
format Article
author Dinh, Viet Hoang
Hoang, Le Phuong
Vu, Yen Nhi Thai
Cao, Xuan Binh
author_sort Dinh, Viet Hoang
title Auto-focus methods in laser systems for use in high precision materials processing: a review
title_short Auto-focus methods in laser systems for use in high precision materials processing: a review
title_full Auto-focus methods in laser systems for use in high precision materials processing: a review
title_fullStr Auto-focus methods in laser systems for use in high precision materials processing: a review
title_full_unstemmed Auto-focus methods in laser systems for use in high precision materials processing: a review
title_sort auto-focus methods in laser systems for use in high precision materials processing: a review
publishDate 2023
url https://hdl.handle.net/10356/172155
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