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In this paper, we report our proof-of-concept demonstration of using a photonic crystal fiber (PCF) as a new surface enhanced Raman scattering (SERS) sensor platform. A liquid core PCF (LCPCF) is fabricated by sealing the cladding holes of a hollow core photonic crystal fiber (HCPCF) while leaving the central core channel open to the outside. In this case, the analyte/SERS solution will only fill the central hole of the HCPCF. Additionally, theoretical simulation ensures that light is well confined in the core of a LCPCF. R6G solutions were used to test the sensor and excitation power dependence was demonstrated.
Sensors, 2007 IEEE
Date of Conference: 28-31 Oct. 2007