Absolute line intensities and self-broadening coefficients in the 谓₃ 鈭?#xa0;谓₁ band of carbon dioxide

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• 作者：Quentin Deliè ; re ; Laurent Fissiaux ; Muriel Lepè ; re ; ^{muriel.lepere@fundp.ac.be}
• 关键词：Self-broadenings ; Absolute line intensities ; Carbon dioxide ; 12CO2 ; 13CO2 ; Diode-laser
• 刊名：Journal of Molecular Spectroscopy
• 出版年：2012
• 期刊代码：129_00222852
• 类别：ch
• 出版时间：February, 2012
• 卷：272
• 期：1
• 页码：36-42
• 文件大小：467 K

摘要

Using a tunable diode-laser spectrometer, we have measured the self-broadening coefficients and strengths of 26 absorption lines in the 谓₃ 鈭?#xA0;谓₁ band of ¹²CO₂ and ¹³CO₂ at room temperature. These lines, ranging from P(34) to R(40), are located around 960.9 and 913.4 cm^鈭?, respectively for the ¹²CO₂ and ¹³CO₂ molecules. The collisional widths and the intensities were obtained by fitting Voigt and Rautian and Sobel鈥檓an profiles to the measured shapes of the lines. From the individual line intensities and using a least-squares method, we have determined the vibrational band strength as well as the Herman-Wallis factors for the 谓₃ 鈭?#xA0;谓₁ band of ¹²CO₂ and ¹³CO₂.