A complete study of the line intensities of four bands of CO2 around 1.6 and 2.0 μm: A comparison between Fourier transform and diode laser measurements
作者： L. Régalia-Jarlot , V. Zéninari , B. Parvitte , A. Grossel , X. Thomas
DOI: 10.1016/J.JQSRT.2005.11.021
关键词: Spectral line 、 Spectroscopy 、 Spectrometer 、 Laser 、 Tunable diode laser absorption spectroscopy 、 Tunable laser 、 Diode 、 Materials science 、 Optics 、 Infrared spectroscopy
摘要: Abstract Atmospheric carbon dioxide is a key specie for the Earth climate. Two spectral windows at 1.6 μm and 2.0 μm are of particular interest in situ remote monitoring from satellite, balloon or airborne platforms using infrared absorption spectroscopy. A precise knowledge line strengths prerequisite an accurate concentration retrieval. In this paper, we have revisited laboratory (3001)III←(0000) (3001)II ← (0000) bands CO2 near (2001)III (2001)II by implementing both high-resolution Connes-type Fourier-transform spectrometer tunable diode laser equipped with several telecommunication-type semiconductor devices. Approximately 200 (respectively 18) transitions been carefully investigated spectra recorded FT spectrometer). The intensity measurements achieved instruments thoroughly compared to previous instrumental determinations, ab-initio calculations available atmospheric molecular database.
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