Fabrication of opaque and transparent 3D structures using a single material via two-photon polymerisation lithography

Two-photon polymerisation lithography enables the three-dimensional (3D)-printing of high-resolution micron- and nano-scale structures. Structures that are 3D-printed using proprietary resins are transparent and are suitable as optical components. However, achieving a mix of opaque and transparent s...

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Published in:Light: advanced manufacturing 2023-01, Vol.4 (3), p.1-250
Main Authors: Nair, Parvathi Nair Suseela, Pan, Chengfeng, Wang, Hao, Arora, Deepshikha, Wu, Qing Yang Steve, Rahman, M. A., Teng, Jinghua, Yang, Joel K. W.
Format: Article
Language:English
Subjects:
3d printing
laser decomposition
lens imaging contrast
optically opaque
two-photon polymerisation lithography
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cited_by cdi_FETCH-LOGICAL-c342t-a72c6ec4715d7e564ea2716513c4ec7f129647c97c1ddf5981c6b6f629b7a223
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creator Nair, Parvathi Nair Suseela
Pan, Chengfeng
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description Two-photon polymerisation lithography enables the three-dimensional (3D)-printing of high-resolution micron- and nano-scale structures. Structures that are 3D-printed using proprietary resins are transparent and are suitable as optical components. However, achieving a mix of opaque and transparent structures in a single optical component is challenging and requires multiple material systems or the manual introduction of ink after fabrication. In this study, we investigated an overexposure printing process for laser decomposition, which typically produces uncontrollable and random ‘burnt’ structures. Specifically, we present a printing strategy to control this decomposition process, realising the on-demand printing of opaque or transparent structures in a single lithographic step using a single resin. Using this method, opaque structures can be printed with a minimum feature size of approximately 10 µm, which exhibit
doi_str_mv 10.37188/lam.2023.025
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subjects 3d printing
laser decomposition
lens imaging contrast
optically opaque
two-photon polymerisation lithography
title Fabrication of opaque and transparent 3D structures using a single material via two-photon polymerisation lithography
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