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conference paper
Mid infrared waveguide spectroscopy for cocaine detection in liquid environments
2012
Proceedings of the EOS Annual Meeting
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.
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Name
eosam2012_tom1 - Yu-Chi Chang - 6025.pdf
Access type
openaccess
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1.42 MB
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Adobe PDF
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698c08c5e47a8de1aab28c3c64ed19aa