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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 26 — Dec. 20, 2010
  • pp: 27550–27559

Multiphoton fabrication of freeform polymer microstructures with gold nanorods

Wen-Shuo Kuo, Chi-Hsiang Lien, Keng-Chi Cho, Chia-Yuan Chang, Chun-Yu Lin, Lynn L. H. Huang, Paul J. Campagnola, Chen Yuan Dong, and Shean-Jen Chen  »View Author Affiliations

Optics Express, Vol. 18, Issue 26, pp. 27550-27559 (2010)

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In this study, three-dimensional (3D) polyacrylamide microstructures containing gold nanorods (AuNRs) were fabricated by two-photon polymerization (TPP) using Rose Bengal (RB) as the photoinitiator. To retain AuNRs in the 3D polymer microstructures, the laser wavelength was chosen for two-photon RB absorption for improved TPP efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. After TPP processing, the laser wavelength was tuned for the longitudinal plasmon resonance and the laser power was increased to beyond the damage threshold of the AuNRs for reshaping the AuNRs into gold nanospheres. As a result, AuNRs in designated positions of the fabricated 3D microstructures can be achieved. Two-photon luminescence from the doped AuNRs can also act as contrast agent for the visualization of 3D polymer microstructures.

© 2010 OSA

OCIS Codes
(120.4610) Instrumentation, measurement, and metrology : Optical fabrication
(190.4180) Nonlinear optics : Multiphoton processes
(240.6680) Optics at surfaces : Surface plasmons

Original Manuscript: August 31, 2010
Revised Manuscript: December 8, 2010
Manuscript Accepted: December 9, 2010
Published: December 15, 2010

Wen-Shuo Kuo, Chi-Hsiang Lien, Keng-Chi Cho, Chia-Yuan Chang, Chun-Yu Lin, Lynn L. H. Huang, Paul J. Campagnola, Chen Yuan Dong, and Shean-Jen Chen, "Multiphoton fabrication of freeform polymer microstructures with gold nanorods," Opt. Express 18, 27550-27559 (2010)

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