Functionalizing a Tapered Microcavity as a Gas Cell for On-Chip Mid-Infrared Absorption Spectroscopy
AbstractIncreasing demand for field instruments designed to measure gas composition has strongly promoted the development of robust, miniaturized and low-cost handheld absorption spectrometers in the mid-infrared. Efforts thus far have focused on miniaturizing individual components. However, the optical absorption path that the light beam travels through the sample defines the length of the gas cell and has so far limited miniaturization. Here, we present a functionally integrated linear variable optical filter and gas cell, where the sample to be measured is fed through the resonator cavity of the filter. By using multiple reflections from the mirrors on each side of the cavity, the optical absorption path is elongated from the physical
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Ayerden, N.P.; Mandon, J.; Harren, F.J.M.; Wolffenbuttel, R.F. Functionalizing a Tapered Microcavity as a Gas Cell for On-Chip Mid-Infrared Absorption Spectroscopy. Sensors 2017, 17, 2041.
Ayerden NP, Mandon J, Harren FJM, Wolffenbuttel RF. Functionalizing a Tapered Microcavity as a Gas Cell for On-Chip Mid-Infrared Absorption Spectroscopy. Sensors. 2017; 17(9):2041.Chicago/Turabian Style
Ayerden, N. P.; Mandon, Julien; Harren, Frans J.M.; Wolffenbuttel, Reinoud F. 2017. "Functionalizing a Tapered Microcavity as a Gas Cell for On-Chip Mid-Infrared Absorption Spectroscopy." Sensors 17, no. 9: 2041.
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