Evanescent-Wave Gas Sensing Using an Integrated Thermal Light Source†
AbstractThe last years showed an increased request for miniaturised, CMOS-compatible gas detectors. In contrast to sensors utilizing metal-oxide chemical interfaces, optical strategies are potentially faster and more robust. Recently we demonstrated CO2 detection by evanescent-wave absorption in the mid-infrared using a combination of an external laser source and silicon waveguides based on CMOS technology. We now go one step further and demonstrate the feasibility of detection of CO2 down to a concentration of 3% with a low-cost integrated thermal source. These results are promising for further technological developments towards on-chip mid-infrared photonic gas sensors, and new designs are currently devised to increase the yet relatively low sensitivity.
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Consani, C.; Ranacher, C.; Tortschanoff, A.; Grille, T.; Irsigler, P.; Jakoby, B. Evanescent-Wave Gas Sensing Using an Integrated Thermal Light Source. Proceedings 2017, 1, 550.
Consani C, Ranacher C, Tortschanoff A, Grille T, Irsigler P, Jakoby B. Evanescent-Wave Gas Sensing Using an Integrated Thermal Light Source. Proceedings. 2017; 1(4):550.Chicago/Turabian Style
Consani, Cristina; Ranacher, Christian; Tortschanoff, Andreas; Grille, Thomas; Irsigler, Peter; Jakoby, Bernhard. 2017. "Evanescent-Wave Gas Sensing Using an Integrated Thermal Light Source." Proceedings 1, no. 4: 550.
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