Abstract
We use Fourier transform spectroscopy based on a compact difference frequency generation comb source emitting around 8 µm to record broadband high-resolution spectra of molecules relevant to astrophysics and environmental monitoring. From the spectra we obtain line lists with sub-MHz accuracy, an order of magnitude better than previously available, and use them to refine theoretical models of these molecules. Here we report results for formaldehyde, for which the 8 µm range is missing in HITRAN.
© 2023 The Author(s)
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