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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 10 — May. 15, 2014
  • pp: 3034–3037

Two-photon polymerization: investigation of chemical and mechanical properties of resins using Raman microspectroscopy

Li Jia Jiang, Yun Shen Zhou, Wei Xiong, Yang Gao, Xi Huang, Lan Jiang, Tommaso Baldacchini, Jean-Francois Silvain, and Yong Feng Lu  »View Author Affiliations


Optics Letters, Vol. 39, Issue 10, pp. 3034-3037 (2014)
http://dx.doi.org/10.1364/OL.39.003034


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Abstract

In this study, the degree of conversion (DC) of an acrylic-based resin (IP-L 780) in two-photon polymerization (TPP) is systematically investigated via Raman microspectroscopy. A quantitative relationship between TPP laser parameters and the DC of the resin is established. Nonlinear increase in DC with increased laser average power is observed. The resin DC is more sensitive to the laser average power than the laser writing speed. Nanoindentation was employed to correlate the results obtained from Raman microspectroscopy with the mechanical properties of microstructures fabricated by TPP. At constant writing speeds, microstructures fabricated with high laser average powers possess high hardness and high reduced Young’s modulus (RYM), indicating high DCs. The results are in line with high DCs measured under the same TPP parameters in Raman microspectroscopy. Raman microspectroscopy is proved to be an effective, rapid, and nondestructive method characterizing microstructures fabrication by TPP.

© 2014 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(170.5660) Medical optics and biotechnology : Raman spectroscopy
(220.4000) Optical design and fabrication : Microstructure fabrication
(350.3390) Other areas of optics : Laser materials processing

ToC Category:
Microscopy

History
Original Manuscript: March 11, 2014
Revised Manuscript: April 3, 2014
Manuscript Accepted: April 7, 2014
Published: May 14, 2014

Citation
Li Jia Jiang, Yun Shen Zhou, Wei Xiong, Yang Gao, Xi Huang, Lan Jiang, Tommaso Baldacchini, Jean-Francois Silvain, and Yong Feng Lu, "Two-photon polymerization: investigation of chemical and mechanical properties of resins using Raman microspectroscopy," Opt. Lett. 39, 3034-3037 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-10-3034

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