Surface-enhanced Raman scattering optical fiber sensor using biconical taper fiber

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
^-9
M.