Lepère M, Blanquet G, Walrand J, Bouanich JP
CNRS, Université de Paris-Sud, Bâtiment 350, Orsay Cedex, F-91405, France
J Mol Spectrosc. 1998 Nov;192(1):231-234. doi: 10.1006/jmsp.1998.7681.
Ar-broadening coefficients are measured for 29 lines of CH3F in the RQ0 and RQ6 branches of the nu6 band, using a tunable diode-laser spectrometer. The collisional widths obtained by fitting Rautian profiles to the measured shapes of the lines are significantly larger, especially for the overlapping lines at low-J values, than those obtained from Voigt profiles. The broadening coefficients for the lines belonging to the same low-J transitions (J = 7-10) appear to be greater in the RQ0 branch than in the RQ6 branch. Comparisons have been made with calculated results based on a semiclassical model including adjustable potential parameters. Copyright 1998 Academic Press.
使用可调谐二极管激光光谱仪测量了 ν6 带 RQ0 和 RQ6 分支中 CH3F 的 29 条谱线的展宽系数。通过将劳蒂安轮廓拟合到测量的谱线形状而获得的碰撞宽度，特别是对于低 J 值下重叠的谱线，比从沃伊特轮廓获得的碰撞宽度要大得多。属于相同低 J 跃迁（J = 7 - 10）的谱线的展宽系数在 RQ0 分支中似乎比在 RQ6 分支中更大。已将结果与基于包含可调势参数的半经典模型的计算结果进行了比较。版权所有 1998 年学术出版社。
