Articles | Volume 15, issue 5
Research article
08 Mar 2022
Research article |  | 08 Mar 2022

MULTICHARME: a modified Chernin-type multi-pass cell designed for IR and THz long-path absorption measurements in the CHARME atmospheric simulation chamber

Jean Decker, Éric Fertein, Jonas Bruckhuisen, Nicolas Houzel, Pierre Kulinski, Bo Fang, Weixiong Zhao, Francis Hindle, Guillaume Dhont, Robin Bocquet, Gaël Mouret, Cécile Coeur, and Arnaud Cuisset


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Short summary
We present a multiple pass system developed for the CHamber for Atmospheric Reactivity and Metrology of the Environment. This multi-pass cell allows monitoring of atmospheric species at trace levels by high-resolution spectroscopy with long interaction path lengths in the IR and for the first time in the terahertz range. Interesting prospects are highlighted in this frequency domain, such as a high degree of selectivity or the possibility to monitor in real-time atmospheric processes.