Mid infrared waveguide spectroscopy for cocaine detection in liquid environments

A germanium strip waveguide on a silicon substrate is integrated with a microfluidic chip to detect cocaine in tetrachloroethylene solutions. In the evanescent field of the waveguide, cocaine absorbs the light at 5.8μm, which is emitted from a quantum cascade laser. The lowest measured concentration is 100μg/ml.


Published in:
Proceedings of the EOS Annual Meeting, 6025
Presented at:
EOS Annual Meeting 2012, TOM 1 - Biophotonics: Optical Manipulation and OCT Imaging in Life Sciences and Medicine, Aberdeen, Scotland, UK, 25-28 September, 2012
Year:
2012
ISBN:
978-3-9815022-4-4
Keywords:
Laboratories:




 Record created 2012-10-25, last modified 2018-03-18

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