Three-dimensional polymer microdevices with gold nanorods

W. S. Kuo, C. H. Lien, K. C. Cho, Chia-Yuan Chang, C. Y. Lin, P. J. Campagnol, S. J. Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this study, a three-dimensional (3D) polyacrylamide microstructure containing gold nanorods (AuNRs) was fabricated successfully by utilizing femtosecond laser-based two-photon polymerization (TPP) with a Rose Bengal (RB) photoinitiator, and can provide a great diversity of optical properties. To maintain AuNRs in the 3D polymer microstructures, the fabrication laser power can be significantly reduced to 1.0 mW by tuning the laser wavelength for the two-photon absorption of RB to improve TPP efficiency, but not for the longitudinal plasmon resonance of AuNRs to photothermally damage AuNRs. After the TPP processing, a higher laser power, greater than the threshold of the AuNR damage at the wavelength for the longitudinal plasmon resonance, is adopted to reshape the AuNRs into gold nanospheres. Then, the existence of the AuNRs in designated positions of the fabricated 3D microstructures can be achieved. The doped AuNRs with two-photon luminescence also act as contrast agent for internal diagnosis of 3D polymer microstructures.

Original languageEnglish
Title of host publicationPlasmonics
Subtitle of host publicationMetallic Nanostructures and Their Optical Properties VIII
DOIs
Publication statusPublished - 2010 Dec 1
EventPlasmonics: Metallic Nanostructures and Their Optical Properties VIII - San Diego, CA, United States
Duration: 2010 Aug 12010 Aug 5

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7757
ISSN (Print)0277-786X

Other

OtherPlasmonics: Metallic Nanostructures and Their Optical Properties VIII
CountryUnited States
CitySan Diego, CA
Period10-08-0110-08-05

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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