Journal
SENSORS
Volume 10, Issue 12, Pages 11064-11071Publisher
MDPI
DOI: 10.3390/s101211064
Keywords
fiber optics sensors; surface enhanced Raman scattering; femtosecond laser
Funding
- Army Research Office [W911NF-07-02-0081]
- National Science Foundation [EEC-0425826a]
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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.
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