Study of SO2 line parameters with a quantum cascade laser spectrometer around : Comparison with calculations of the ν1 and ν1+ν2-ν2
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- 作者：V. Zé ; ninari ; L. Joly ; B. Grouiez ; B. Parvitte ; A. Barbe
- 关键词：Quantum cascade laser ; Mid-IR spectrometry ; SO2 isotopologue ; SO2 hot band
- 刊名：Journal of Quantitative Spectroscopy and Radiative Transfer
- 出版年：2007
- 出版时间：June 2007
- 年：2007
- 卷：105
- 期：2
- 页码：312-325
- 全文大小：888 K
文摘
SO2 spectra have been recorded with a quantum cascade laser spectrometer at . Line positions, line strengths and self-broadening coefficients of 42 lines have been precisely determined. All these parameters have shown some discrepancies with those of the HITRAN database. Moreover several lines found in this study were not present in this database. In order to have a complete line list of transitions of SO2 appearing into the recorded spectra, we have performed a new calculation of the title=""Click to view the MathML source"">ν1 band of 32SO2, the title=""Click to view the MathML source"">ν1+ν2-ν2 band of 32SO2 and the title=""Click to view the MathML source"">ν1 band of 34SO2. This new calculation demonstrates a considerable improvement of the calculations of synthetic spectra of SO2. These new calculations improve the positions (up to , the intensities (up to 30 % ) and the self-broadening coefficients (up to 100 % ) of the 9017163a1b09e1e15d0de962c7592e4e"" title=""Click to view the MathML source"">ν1 band of 32SO2 with respect to HITRAN database and permit to obtain a complete set of data for the title=""Click to view the MathML source"">ν1+ν2-ν2 band of 32SO2 and the title=""Click to view the MathML source"">ν1 band of 34SO2 where the positions and strengths are in very good agreement with experimental data.