Publication

Single Mode Mid-infrared Waveguide for Evanescent Sensor Scheme in Liquids

Hans Peter Herzig, Vincent Paeder, Lubos Hvozdara, Philip Wägli, Yu-Chi Chang
2011
Conference Papers

Abstract

A Si/Ge based, single mode, mid-infrared optical waveguide, is used as an evanescent sensor in liquid matrix. The selectivity is achieved by the use of quantum cascade lasers (QCLs) tuned to the maximum absorption of a given analyte. The cocaine detection in human saliva at 5.81 microns is chosen as a pilot application to demonstrate the technology. Light emitted from the QCL is butt coupled into the Si/Ge waveguide. The waveguide is passing through the detection part of the micro-fluidic sample preparatory/handler, and interacting with the analyte, it is collected and guided into the mid infrared quantum cascade detector QCD.

Official source

https://infoscience.epfl.ch/entities/publication/fb24573d-c522-42f5-b9d1-a7d16c9f9971

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Hans Peter Herzig, Vincent Paeder, Lubos Hvozdara, Philip Wägli, Yu-Chi Chang
2011
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/fb24573d-c522-42f5-b9d1-a7d16c9f9971

About this result

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