Zuyang Liu, Haolan Zhao, B. Baumgartner, B. Lendl, A. Skirtach, N. Le Thomas, R. Baets
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Ultra-Sensitive Silicon Nitride Waveguide-Enhanced Raman Spectroscopy for Aqueous Solutions of Organic Compounds
We demonstrate a waveguide-enhanced Raman sensor functionalized with mesoporous silica coating for organic compounds in aqueous solutions. The detection limit of cyclohexanone in water is improved by at least 100 times compared to bare waveguides.