TY - GEN
T1 - Photonic crystal fiber as an optofluidic platform for surface-enhanced Raman scattering
AU - Han, Yun
AU - Oo, Maung Kyaw Khaing
AU - Sukhishvili, Svetlana
AU - Du, Henry
PY - 2010
Y1 - 2010
N2 - As both a waveguide and a gas/liquid transmission cell, photonic crystal fiber (PCF) allows synergistic integration of optics and microfluidics to form an unconventional optofluidic platform with long interaction path. In this paper, we report our strategy to achieve surface-enhanced Raman scattering (SERS) PCF optofluidics by polyelectrolyte-mediated immobilization of Ag nanoparticles (NPs) inside the fiber air channels. Through forward propagating Raman measurements and hyperspectral Raman imaging, we demonstrate the realization of SERS-active PCF optofluidics with accumulative Raman signal gain along the entire fiber length using both solid-core PCF (SC PCF) and hollow-core PCF (HC PCF). By numerical simulation and Raman measurements, we show that suspended-core PCF (SP PCF) consisting of a silica core surrounded by three large air channels conjoined by a thin silica web is the most robust platform of the three SC PCF microstructures investigated for evanescent-field SERS spectroscopy.
AB - As both a waveguide and a gas/liquid transmission cell, photonic crystal fiber (PCF) allows synergistic integration of optics and microfluidics to form an unconventional optofluidic platform with long interaction path. In this paper, we report our strategy to achieve surface-enhanced Raman scattering (SERS) PCF optofluidics by polyelectrolyte-mediated immobilization of Ag nanoparticles (NPs) inside the fiber air channels. Through forward propagating Raman measurements and hyperspectral Raman imaging, we demonstrate the realization of SERS-active PCF optofluidics with accumulative Raman signal gain along the entire fiber length using both solid-core PCF (SC PCF) and hollow-core PCF (HC PCF). By numerical simulation and Raman measurements, we show that suspended-core PCF (SP PCF) consisting of a silica core surrounded by three large air channels conjoined by a thin silica web is the most robust platform of the three SC PCF microstructures investigated for evanescent-field SERS spectroscopy.
KW - Optofluidics
KW - Photonic crystal fiber
KW - Polyelectrolyte-mediated immobilization
KW - Surface-enhanced Raman scattering
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U2 - 10.1117/12.869331
DO - 10.1117/12.869331
M3 - Conference contribution
AN - SCOPUS:79953068687
SN - 9780819483607
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 2nd Workshop on Specialty Optical Fibers and Their Applications, WSOF-2
T2 - 2nd Workshop on Specialty Optical Fibers and Their Applications, WSOF-2
Y2 - 13 October 2010 through 15 October 2010
ER -