Diode laser spectroscopy of two acetylene isotopologues ((C2H2)-C-12, (CCH2)-C-13-C-12) in the 1.533 mu m region for the PHOBOS-Grunt space mission

作者：Li Jingsong; Joly Lilian; Cousin Julien; Parvitte Bertrand; Bonno Bernard; Zeninari Virginie^*; Durry Georges

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2009, 74(5): 1204-1208.

DOI：10.1016/j.saa.2009.09.037

• Diode laser
• Near-infrared spectrometer
• C2H2 isotopes
• Spectral lines parameters

Several line intensities of the nu(1) nu(3)(Sigma( )(u)) - 0(Sigma( )(g)) bands of (C2H2)-C-12 and (CCH2)-C-13-C-12 at 1.533 mu m have 9 been revised at room temperature. These molecular transitions were selected to measure acetylene within the framework of the Martian space mission PHOBOS-Grunt. In the spectral region ranging from 6518 to 6530 cm(-1), 10 lines of both isotopologues have been analyzed using a high resolution tunable diode laser spectrometer. These transitions are well appropriate to the monitoring of C2H2 by laser absorption spectroscopy with standard telecommunication laser diodes. Both the Voigt and the Rautian models are used to fit the molecular line shape and to provide accurate line strengths. Our data are thoroughly compared to existing database (including HITRAN08) and former experimental measurements.

• 出版日期2009-12