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Remote sensing using open-path dual-comb spectroscopy
Published
Author(s)
Kevin Cossel, Eleanor M. Waxman, Esther Baumann, Fabrizio Giorgetta, Brian Washburn, Caroline Alden, Sean Coburn
Abstract
Open-path dual-comb spectroscopy (DCS) is an emerging technique for long open-path measurements across km-scale paths. It provides both broad spectral coverage over hundreds of wavenumbers with high spectral resolution and negligible instrument lineshape. In this chapter we discuss the principle of open-path DCS, provide an overview of the necessary technology and analysis techniques, review field applications including near-IR measurements of urban CO2 emissions, CH4 emissions from drilling and agricultural operations, measurements to a UAV, and recent measurements of VOCs in the mid-IR, and finally provide an outlook especially on how this technique can move to additional spectral regions beyond the near- and mid-IR.
Citation
Advances in Spectroscopic Monitoring of the Atmosphere
Cossel, K.
, Waxman, E.
, Baumann, E.
, Giorgetta, F.
, Washburn, B.
, Alden, C.
and Coburn, S.
(2021),
Remote sensing using open-path dual-comb spectroscopy, Advances in Spectroscopic Monitoring of the Atmosphere, Elsevier, Amsterdam, , [online], https://doi.org/10.1016/B978-0-12-815014-6.00008-7, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=930514
(Accessed October 14, 2025)