TY - JOUR
T1 - Index-guiding liquid-core photonic crystal fiber for solution measurement using normal and surface-enhanced Raman scattering
AU - Han, Yun
AU - Oo, Maung Kyaw Khaing
AU - Zhu, Yinian
AU - Xiao, Limin
AU - Demohan, M. Suleyman
AU - Jin, Wei
AU - Du, Henry
PY - 2008
Y1 - 2008
N2 - We have explored the use of index-guiding liquid-core (LC) photonic crystal fiber (PCF) as a robust platform for measurements of solutions of trace volume using normal and surface-enhanced Raman scattering (SERS). The LC PCF was fabricated by selectively sealing the cladding air channels at the distal ends of a hollow-core PCF while leaving the center core open, using a fusion splicer. Utilizing a 30-cm-long LC PCF with the entire center core filled with the ∼0.1-μL solution of interest, we have obtained normal Raman spectra of water, ethanol, and 1vol% ethanol in water. Sensitive and reproducible SERS detection of 1.7×10-7M thiocyanate anions (≈14ppb of NaSCN) in water has also been achieved.
AB - We have explored the use of index-guiding liquid-core (LC) photonic crystal fiber (PCF) as a robust platform for measurements of solutions of trace volume using normal and surface-enhanced Raman scattering (SERS). The LC PCF was fabricated by selectively sealing the cladding air channels at the distal ends of a hollow-core PCF while leaving the center core open, using a fusion splicer. Utilizing a 30-cm-long LC PCF with the entire center core filled with the ∼0.1-μL solution of interest, we have obtained normal Raman spectra of water, ethanol, and 1vol% ethanol in water. Sensitive and reproducible SERS detection of 1.7×10-7M thiocyanate anions (≈14ppb of NaSCN) in water has also been achieved.
KW - Raman scattering
KW - detection
KW - hollow-core photonic crystal fiber
KW - index-guiding liquid-core photonic crystal fiber
KW - sensing
KW - surface-enhanced Raman scattering
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U2 - 10.1117/1.2902463
DO - 10.1117/1.2902463
M3 - Article
AN - SCOPUS:81355154455
SN - 0091-3286
VL - 47
JO - Optical Engineering
JF - Optical Engineering
IS - 4
M1 - 040502
ER -