Light-sheet 3D microprinting via two-colour two-step absorption
High-speed high-resolution 3D printing of polymers is highly desirable for many applications, yet still technologically challenging. Today, optics-based printing is in the lead. Projection-based linear optical approaches have achieved high printing rates of around 106 voxels s-1, although at voxel v...
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| Hauptverfasser: | , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
13 October 2022
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| In: |
Nature photonics
Year: 2022, Jahrgang: 16, Heft: 11, Pages: 784-791 |
| ISSN: | 1749-4893 |
| DOI: | 10.1038/s41566-022-01081-0 |
| Online-Zugang: | Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1038/s41566-022-01081-0 Verlag, lizenzpflichtig, Volltext: https://www.nature.com/articles/s41566-022-01081-0 
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| Verfasserangaben: | Vincent Hahn, Pascal Rietz, Frank Hermann, Patrick Müller, Christopher Barner-Kowollik, Tobias Schlöder, Wolfgang Wenzel, Eva Blasco, Martin Wegener |
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| 520 | |a High-speed high-resolution 3D printing of polymers is highly desirable for many applications, yet still technologically challenging. Today, optics-based printing is in the lead. Projection-based linear optical approaches have achieved high printing rates of around 106 voxels s-1, although at voxel volumes of >100 μm3. Scanning-based nonlinear optical approaches have achieved voxel volumes of <1 μm3, but suffer from low printing speed or high cost because of the required femtosecond lasers. Here we present an approach that we refer to as light-sheet 3D laser microprinting. It combines image projection with an AND-type optical nonlinearity based on two-colour two-step absorption. The underlying photoresin is composed of 2,3-butanedione as the photoinitiator, (2,2,6,6-tetramethylpiperidin-1-yl)oxyl as the scavenger and dipentaerythritol hexaacrylate as the multifunctional monomer. Using continuous-wave laser diodes at 440 nm wavelength for projection and a continuous-wave laser at 660 nm for the light-sheet, we achieve a peak printing rate of 7 × 106 voxels s-1 at a voxel volume of 0.55 μm3. | ||
| 650 | 4 | |a Laser material processing | |
| 650 | 4 | |a Lithography | |
| 650 | 4 | |a Metamaterials | |
| 650 | 4 | |a Photochemistry | |
| 650 | 4 | |a Polymers | |
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| 700 | 1 | |a Hermann, Frank |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Wegener, Martin |e VerfasserIn |4 aut | |
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