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Conferences > CLEO_AT > 2023 > AW4E > AW4E.1

Precision Frequency Comb Spectroscopy in the 8 µm Range

Matthias Germann, Adrian Hjältén, Iouli E. Gordon, Jonathan Tennyson, Sergey Yurchenko, Karol Krzempek, Arkadiusz Hudzikowski, Aleksander Głuszek, Christian Pett, Isak Silander, Grzegorz Soboń, and Aleksandra Foltynowicz

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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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