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首页> 外文会议>12th Symposium and School on High-Resolution Molecular Spectroscopy >Self- air and noble gas broadening in rotational-vibrational bands of SO2 H2S and NO2
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Self- air and noble gas broadening in rotational-vibrational bands of SO2 H2S and NO2

机译：SO2 H2S和NO2的旋转振动带中的自空气和稀有气体加宽

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Abstract: Beside the knowledge of line positions and strengths precise data on the line broadening are prerequisite for the analysis of atmospheric transmission spectra and the in-situ determination of trace gas concentrations. Moreover, experimental data on the line broadening provide information on the collision processes as origin of broadening and shift of absorption lines. In this paper result on the line broadening obtained with a pulse driven diode laser spectrometer are presented. Intensive studies of the self- broadening were carried out for the v$-1$/, v$-3$/, and v$- 1$/ plus v$-3$/ bands of SO$-2$/, the v$-1$/, v$-2$/, v$- 3$/, and 2v$-2$/ bands of H$-2$/S, and the v$-3$/ band of NO$-2$/ in order to analyze the quantum number dependence of the broadening coefficients. For SO$-2$/ a pronounced decrease of the broadening coefficients with increasing quantum number K$-a$/$+n$/ was found. In the case of H$-2$/S the J$+n$/-dependence dominates, whereas in the case of NO$- 2$/ a trend is not obvious. To study the perturber dependence of the broadening, air, He, Ne, Ar, Kr, and Xe were included in the experiments. The tendencies observed for noble gas perturbers could be described theoretically with a modified Anderson-Tsao-Curnutte-theory. !36
机译：摘要：除了了解管线的位置和强度外，管线扩宽的精确数据是分析大气传输光谱和现场确定痕量气体浓度的前提。而且，关于线展宽的实验数据提供了关于碰撞过程的信息，这些碰撞过程是吸收线展宽和偏移的起源。在本文中，给出了使用脉冲驱动二极管激光光谱仪获得的线展宽结果。对v $ -1 $ /，v $ -3 $ /和v $ -1 $ /加上v $ -3 $ / SO $ -2 $ /的范围进行了深入研究。 v $ -1 $ /，v $ -2 $ /，v $ -3 $ /和2v $ -2 $ / H $ -2 $ / S的波段，以及v $ -3 $ / NO的波段-2 $ /，以便分析扩宽系数的量子数依赖性。对于SO $ -2 $ /，发现随着量子数K $ -a $ / $ + n $ /的增加，系数显着下降。在H $ -2 $ / S的情况下，J $ + n $ /-依赖性起主导作用，而在NO $ -2 $ / S的情况下，趋势并不明显。为了研究变宽对扰动的依赖性，实验中包括了空气，He，Ne，Ar，Kr和Xe。从理论上可以用修正的Anderson-Tsao-Curnutte理论来描述观察到的稀有气体扰动器的趋势。 ！36

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