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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 10 — Oct. 5, 2012

Fast multiphoton microfabrication of freeform polymer microstructures by spatiotemporal focusing and patterned excitation

Yi-Cheng Li, Li-Chung Cheng, Chia-Yuan Chang, Chi-Hsiang Lien, Paul J. Campagnola, and Shean-Jen Chen  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 19030-19038 (2012)

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One of the limits of conventional scanning multiphoton microfabrication is its low throughput due to point-by-point processing. In order to surpass this limit, a multiphoton microfabrication system based on spatiotemporal focusing and patterned excitation has been developed to quickly provide three-dimensional (3D) freeform polymer microstructures. 3D freeform polymer microstructures using Rose Bengal as the photoinitiator are created by sequentially stacking two-dimensional fabricating patterns. The size of each fabrication area can be larger than 300 × 170 μm2 (full width at half maximum). Compared to conventional scanning multiphoton excitation and fixed mask pattern generation, this approach offers freeform microstructures and a greater than three-order increase in fabrication speed. Furthermore, the system is capable of optically sectioning the fabricated microstructures for providing 3D inspection.

© 2012 OSA

OCIS Codes
(120.4610) Instrumentation, measurement, and metrology : Optical fabrication
(190.4180) Nonlinear optics : Multiphoton processes
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:
Laser Microfabrication

Original Manuscript: June 1, 2012
Revised Manuscript: July 19, 2012
Manuscript Accepted: July 28, 2012
Published: August 3, 2012

Virtual Issues
Vol. 7, Iss. 10 Virtual Journal for Biomedical Optics

Yi-Cheng Li, Li-Chung Cheng, Chia-Yuan Chang, Chi-Hsiang Lien, Paul J. Campagnola, and Shean-Jen Chen, "Fast multiphoton microfabrication of freeform polymer microstructures by spatiotemporal focusing and patterned excitation," Opt. Express 20, 19030-19038 (2012)

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