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Sensors 2010, 10(12), 11064-11071; doi:10.3390/s101211064
Article

Surface-Enhanced Raman Scattering Sensor on an Optical Fiber Probe Fabricated with a Femtosecond Laser

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 and
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1 Department of Electrical and Computer Engineering, University of Massachusetts Lowell, One University Ave., Lowell, MA 01854, USA 2 Biomedical Engineering and Biotechnology Doctoral Program, University of Massachusetts Lowell, One University Ave., Lowell, MA 01854, USA 3 Department of Physics, University of Massachusetts Lowell, One University Ave., Lowell, MA 01854, USA
* Author to whom correspondence should be addressed.
Received: 28 September 2010 / Revised: 3 November 2010 / Accepted: 26 November 2010 / Published: 6 December 2010
(This article belongs to the Section Physical Sensors)
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Abstract

A novel fabrication method for surface-enhanced Raman scattering (SERS) sensors that used a fast femtosecond (fs) laser scanning process to etch uniform patterns and structures on the endface of a fused silica optical fiber, which is then coated with a thin layer of silver through thermal evaporation is presented. A high quality SERS signal was detected on the patterned surface using a Rhodamine 6G (Rh6G) solution. The uniform SERS sensor built on the tip of the optical fiber tip was small, light weight, and could be especially useful in remote sensing applications.
Keywords: fiber optics sensors; surface enhanced Raman scattering; femtosecond laser fiber optics sensors; surface enhanced Raman scattering; femtosecond laser
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ma, X.; Huo, H.; Wang, W.; Tian, Y.; Wu, N.; Guthy, C.; Shen, M.; Wang, X. Surface-Enhanced Raman Scattering Sensor on an Optical Fiber Probe Fabricated with a Femtosecond Laser. Sensors 2010, 10, 11064-11071.

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