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Authors: B. Baumgartner, N. Teigell Beneitez, Jeroen Missinne, S. Radosavljevic, Dominik Wacht, G. Roelkens, Bernhard Lendl
Title: Porous Silica Enrichment Films on Integrated Waveguides for Broadband Mid-IR Spectroscopic Trace Analysis
Format: International Conference Proceedings
Publication date: 7/2021
Journal/Conference/Book: OSA Optical Sensors and Sensing Congress 2021 (invited)
Editor/Publisher: Optica, 
Citations: Look up on Google Scholar


Germanium-on-Silicon waveguide chips coated with functionalized mesoporous silica were used for evanescent wave sensing of organic contaminants in gas and aqueous phase. Low ppm level LODs and fast response times pave the way for in-line monitoring.

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