Cocaine detection by a mid-infrared waveguide integrated with a microfluidic chip

Chang, Yu-ChiWägli, PhilipPaeder, VincentHomsy, AlexandraHvozdara, Lubosvan der Wal, PeterDi Francesco, Joabde Rooij, NicoHerzig, Hans Peter2012-08-302012-08-302012-08-30201210.1039/c2lc40601bhttps://infoscience.epfl.ch/handle/20.500.14299/85167WOS:000307066400005A germanium (Ge) strip waveguide on a silicon (Si) substrate is integrated with a microfluidic chip to detect cocaine in tetrachloroethylene (PCE) solutions. In the evanescent field of the waveguide, cocaine absorbs the light near 5.8 mm, which is emitted from a quantum cascade laser. This device is ideal for (bio-)chemical sensing applications.waveguidemicrofluidCocaine detection by a mid-infrared waveguide integrated with a microfluidic chiptext::journal::journal article::research article