Journal
IEEE PHOTONICS JOURNAL
Volume 8, Issue 3, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2016.2571978
Keywords
U-shaped; surface enhanced Raman scattering; femtosecond laser; silver; nanoparticle
Funding
- National Science Foundation of China [61308046, 61275125]
- Research Foundation for the Doctoral Program of Higher Education of the Ministry of Education [20124408110003]
- High-Level Talents Project of Guangdong Province
- Basic Research Program of Shenzhen
- Shenzhen Science and Technology Project
- Science and Technology Commission of Shanghai Municipality (STCSM)
- High-Level Talents Project through the National Science Foundation, Shenzhen University (NSFSZU) [827.00002601]
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This paper presents a novel U-shaped fiber surface-enhanced Raman scattering (SERS) spectra probe with high-performance remote sensing based on femtosecond laser ablation and deposition of photoreduced silver nanoparticles. As the width of the U-shaped structure is around 12 mu m, the sensitivity is enhanced about four times more than that of a single-endface-based fiber SERS probe. The experiment results show that there is a nonlinear relationship between the SERS signal and the width of the U-shaped structure, whereas the SERS signal is sharply decreased with the increasing width of the U-shape. Our U-shaped fiber SERS probe shows a feasible method for high-performance, real-time, and remote measurement of the SERS signal in biochemical analysis.
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