Articles | Volume 15, issue 5
Atmos. Meas. Tech., 15, 1201–1215, 2022
https://doi.org/10.5194/amt-15-1201-2022
Atmos. Meas. Tech., 15, 1201–1215, 2022
https://doi.org/10.5194/amt-15-1201-2022
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 et al.

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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.