Microsystem Technologies

, Volume 16, Issue 7, pp 1207–1214 | Cite as

Novel U-shape gold nanoparticles-modified optical fiber for localized plasmon resonance chemical sensing

  • Chien-Hsing Chen
  • Tzu-Chien Tsao
  • Wan-Yun Li
  • Wei-Chih Shen
  • Chung-Wei Cheng
  • Jaw-Luen Tang
  • Chun-Ping Jen
  • Lai-Kwan Chau
  • Wei-Te Wu
Technical Paper

Abstract

A novel fiber-optic localized plasma resonance (FO-LPR) sensor composed of a U-shape optical fiber was proposed and demonstrated in this study. The U-shape optical fiber was fabricated by a femtosecond laser micromachining system. The dimensions of the U-shape zone were 100 μm in depth measured from the surface of the polymer jacket layer, 80 μm in width in the jacket layer, 60 μm in width in the cladding layer. The total length is 5 mm. After laser annealing treatment, the average surface roughness was 205.8 nm as determined by Atom Force Microscope (AFM). The exposed surface of the U-shape fiber was modified with self-assembled gold nanoparticles to produce the FO-LPR sensor. The response of the sensor shows that the signal increases linearly with increasing refractive index. The sensor resolution of the sensor was determined to be 1.06 × 10−3 RIU.

Keywords

Gold Nanoparticles Optical Fiber Femtosecond Laser Average Surface Roughness Focus Spot Size 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

Support of this research by ITRI South (Taiwan, ROC) through Grant No. B200-97G270001884 and the National Science Council (Taiwan, ROC) through Grant No. NSC 95-3114-P-194-001-MY3 is acknowledged.

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Chien-Hsing Chen
    • 1
  • Tzu-Chien Tsao
    • 2
  • Wan-Yun Li
    • 3
  • Wei-Chih Shen
    • 4
  • Chung-Wei Cheng
    • 4
  • Jaw-Luen Tang
    • 1
  • Chun-Ping Jen
    • 2
  • Lai-Kwan Chau
    • 3
  • Wei-Te Wu
    • 5
  1. 1.Department of PhysicsNational Chung Cheng UniversityChia-YiTaiwan, ROC
  2. 2.Department of Mechanical EngineeringNational Chung Cheng UniversityChia-YiTaiwan, ROC
  3. 3.Department of Chemistry and BiochemistryNational Chung Cheng UniversityChia-YiTaiwan, ROC
  4. 4.ITRI SouthIndustrial Technology Research InstituteTainanTaiwan, ROC
  5. 5.Department of Biomechatronics EngineeringNational Pingtung University of Science and TechnologyPingtungTaiwan, ROC

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