Compact laser difference-frequency spectrometer for multicomponent trace gas detection
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- Petrov, K., Curl, R. & Tittel, F. Appl Phys B (1998) 66: 531. doi:10.1007/s003400050430
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O), carbon dioxide (CO2), and sulfur dioxide (SO2). Real-time detection of CO, N2O, and CO2 was performed in open air over a path length of 5 to 18 m. The feasibility of DFG spectroscopic measurement of the 13C/12C and 18O/17O/16O isotopic ratios in atmospheric carbon dioxide was also investigated. We report what to our knowledge is the first simultaneous spectroscopic measurement of all three isotopes of oxygen in ambient CO2.
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