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This letter presents a surface-enhanced Raman scattering (SERS) nanoprobe based on gold nanoparticles-modified tapered optical fiber and demonstrates its ability to perform remote Raman detection. The nanoscale tapered fiber with the tip size of 40.7 nm was made by heated pulling and chemical etching methods. The gold nanoparticles, prepared beforehand by the Frens method with a microwave heating...
A novel surface-enhanced Raman scattering (SERS) optical fiber sensor using biconical taper fiber is proposed. It is fabricated by fused tapering a multi-mode fiber and then coated the silver colloid on its waist. The Raman spectrum for R6G dye solution is obtained and the detection sensitivity is up to 10-9M.
A surface-enhanced Raman scattering (SERS) optical fiber sensor using biconical taper multi-mode fiber (MMF) is proposed. It is fabricated by fused elongating a multi-mode fiber and then coated the silver colloid on its waist. The Raman spectrum for R6G dye solution is measured and the detection sensitivity is 10-9 M.
A novel Surface-enhanced Raman Scattering (SERS) sensor combining with fused taper optical fiber and the film of the silver sols is proposed. We demonstrate the sensing principle and the feasibility of the SERS sensor. Accordingly, the Raman spectrum of R6G is obtained. The detecting concentration is up to 10−7M.
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