Journal
PHYSICAL REVIEW RESEARCH
Volume 4, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.4.023098
Keywords
-
Categories
Funding
- Centre National de la Recherche Scientifique (CNRS)
- Agence Nationale de la Recherche [ANR-19-CE47-0008, ANR-15-IDEX-0003, ANR-21-CE42-0026-01, ANR-21-ESRE-0040]
- Conseil Regional de Bourgogne Franche-Comte
- iXCore Research Fondation
- Agence Nationale de la Recherche (ANR) [ANR-19-CE47-0008] Funding Source: Agence Nationale de la Recherche (ANR)
Ask authors/readers for more resources
We demonstrate the use of dual-comb spectroscopy for isotope ratio measurements, showing that it can be extended to the mid-infrared using a difference frequency generator. The measurements performed show good repeatability and low uncertainty, with results compatible to those obtained by isotope ratio mass spectrometry.
We demonstrate the use of dual-comb spectroscopy for isotope ratio measurements. We show that the analysis spectral range of a free-running near-infrared dual-comb spectrometer can be extended to the midinfrared by difference frequency generation to target specific spectral regions suitable for such measurements and especially the relative isotopic ratio delta C-13. The measurements performed present very good repeatability over several days with a standard deviation below 2 parts per thousand for a recording time of a few tens of seconds, and the results are compatible with measurements obtained using an isotope ratio mass spectrometer. Our setup also shows the possibility to target several chemical species without any major modification, which can be used to measure other isotopic ratios. Further improvements could decrease the uncertainties of the measurements, and the spectrometer could thus compete with isotope ratio spectrometers currently available on the market.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available