14 November 2016 Photonic crystal fiber sensor based on surface-enhanced Raman scattering for explosives detection
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Abstract
We report an new approach of integrating photonic crystal fiber (PCF) SERS sensors to a Raman spectrometer for high sensitivity to the explosive 2,4,6-trinitrotoluene (TNT). The PCF SERS probe can be fabricated by using gold nanoparticles immobilized on the inner surface of air channels in a PCF through polymer-mediated self-assembly. To study the response of above fabricated substrates to the TNT vapor, the PCF SERS probe integrated with a Raman spectrometer was proposed and demonstrated in this study. The TNT-induced SERS signals are measured and the sensing capability of the proposed sensors is investigated experimentally.
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Chuanyi Tao, Rong Chen, Jingke Li, "Photonic crystal fiber sensor based on surface-enhanced Raman scattering for explosives detection", Proc. SPIE 10025, Advanced Sensor Systems and Applications VII, 100251H (14 November 2016); doi: 10.1117/12.2246301; https://doi.org/10.1117/12.2246301
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