Goldschmidt, JensJensGoldschmidtNitzsche, LeonardLeonardNitzscheKießling, JensJensKießlingKühnemann, FrankFrankKühnemannWöllenstein, JürgenJürgenWöllenstein2022-03-152022-03-152021https://publica.fraunhofer.de/handle/publica/412658A mid-infrared dual-comb spectrometer is utilized for the determination of the isotopic ratio of the stable isotopologues 12CO2 and 13CO2 under atmospheric conditions in the n3 band of carbon dioxide at 4375 nm.enmass spectrometryparametric oscillatorperiodically poled lithium niobatespectrometers621A Mid-Infrared Dual Comb Spectrometer for the Determination of Stable Isotope Ratios of Carbon Dioxideconference paper