Rapid, continuous projection multi-photon 3D printing enabled by spatiotemporal focusing of femtosecond pulses

Paul Somers; Zihao Liang; Jason E. Johnson; Bryan W. Boudouris; Liang Pan; Xianfan Xu

doi:10.1038/s41377-021-00645-z

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Rapid, continuous projection multi-photon 3D printing enabled by spatiotemporal focusing of femtosecond pulses

Articles

- Rapid, continuous projection multi-photon 3D printing enabled by spatiotemporal focusing of femtosecond pulses
- Light: Science & Applications Vol. 10, Issue 10, Pages: 1987-1997(2021)
- Affiliations：
  
  1.School of Mechanical Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, IN, USA
  2.Charles D. Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, USA
  3.Department of Chemistry, Purdue University, West Lafayette, IN, USA
- Author bio：
  
  Xianfan Xu (xxu@ecn.purdue.edu)
- Funds：
- DOI：10.1038/s41377-021-00645-z
  CLC：
- Published：31 October 2021，
  
  Published Online：24 September 2021，
  
  Received：22 May 2021，
  
  Revised：09 September 2021，
  
  Accepted：13 September 2021
- Accepted：
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Somers, P. et al. Rapid, continuous projection multi-photon 3D printing enabled by spatiotemporal focusing of femtosecond pulses. Light: Science & Applications, 10, 1987-1997 (2021).
DOI：

Somers, P. et al. Rapid, continuous projection multi-photon 3D printing enabled by spatiotemporal focusing of femtosecond pulses. Light: Science & Applications, 10, 1987-1997 (2021). DOI： 10.1038/s41377-021-00645-z.

摘要

Abstract

There is demand for scaling up 3D printing throughput

especially for the multi-photon 3D printing process that provides sub-micrometer structuring capabilities required in diverse fields. In this work

high-speed projection multi-photon printing is combined with spatiotemporal focusing for fabrication of 3D structures in a rapid

layer-by-layer

and continuous manner. Spatiotemporal focusing confines printing to thin layers

thereby achieving print thicknesses on the micron and sub-micron scale. Through projection of dynamically varying patterns with no pause between patterns

a continuous fabrication process is established. A numerical model for computing spatiotemporal focusing and imaging is also presented which is verified by optical imaging and printing results. Complex 3D structures with smooth features are fabricated

with millimeter scale printing realized at a rate above 10

−3

−1

. This method is furthe

r scalable

indicating its potential to make fabrications of 3D structures with micro/nanoscale features in a practical time scale a reality.

关键词

Keywords

references

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