Ultra-sensitive slot-waveguide-enhanced Raman spectroscopy for aqueous solutions of non-polar compounds using a functionalized silicon nitride photonic integrated circuit

We demonstrate an ultra-sensitive waveguide-enhanced Raman sensor for low concentration organic compounds dissolved in water. The spectra are obtained using silicon nitride slot waveguides coated with a thin film of hexamethyldisilazane-modified mesoporous silica. Enriched locally by 600-fold within...

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Veröffentlicht in:	Optics letters 2021-03, Vol.46 (5), p.1153-1156
Hauptverfasser:	Liu, Zuyang, Zhao, Haolan, Baumgartner, Bettina, Lendl, Bernhard, Stassen, Andim, Skirtach, Andre, Thomas, Nicolas Le, Baets, Roel
Format:	Artikel
Sprache:	eng
Schlagworte:	Aqueous environments Aqueous solutions Biomolecules Cyclohexanone Integrated circuits Organic compounds Raman spectroscopy Sensors Silicon dioxide Silicon nitride Spectrum analysis Thin films Waveguides
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