Articles | Volume 15, issue 5
https://doi.org/10.5194/amt-15-1395-2022
https://doi.org/10.5194/amt-15-1395-2022
Research article
 | 
16 Mar 2022
Research article |  | 16 Mar 2022

The NO2 camera based on gas correlation spectroscopy

Leon Kuhn, Jonas Kuhn, Thomas Wagner, and Ulrich Platt

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Latest update: 17 Jul 2024
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Short summary
We present a novel instrument for imaging measurements of NO2 with high spatiotemporal resolution based on gas correlation spectroscopy, called the GCS NO2 camera. The instrument works by placing two gas cells (cuvettes) in front of two photosensor arrays, one filled with air and one filled with a high concentration of NO2, acting as a non-dispersive spectral filter. NO2 images are then generated on the basis of the signal ratio of the two channels in the spectral region of 430–445 nm.