Author:
Ma Hong-Liang ,Su Ming-Guo ,Liu An-Wen ,Aurore Vicet ,Chen Wei-Dong ,Cao Zhen-Song ,Wang Gui-Shi ,Liu Qiang ,Gao Xiao-Ming ,Rao Rui-Zhong , , , , ,
Abstract
By using a mid-infrared tunable diode laser and a home-made cooling cell, the N2- and air-broadening coefficients of 13CH4 have been measured at room and low temperatures around 3.38 μm. Four transitions are studied for the 13CH4 diluted with nitrogen and air at temperatures 296, 252, 213, and 173 K. Measurements at low temperatures allow the determination of the temperature dependent parameter of the collisional broadening coefficients. The line parameters are obtained by fitting the experimental profile to the Voigt line shape. The N2- and air-broadening coefficients increase with the drop of the temperature. The collisional broadening coefficients of N2 are always larger than those of air at the same temperature. These data support the remote sensing of the Earth and outer planet atmospheres. According to our knowledge, the line parameters are reported experimentally for the first time.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Reference19 articles.
1. Menard-Bourcin F, Menard J, Boursier C 2007 J. Mol. Spectrosc. 242 55
2. Niederer H M, Albert S, Bauerecker S, Boudon V, Champion J P, Quack M 2008 Chimia 62 273
3. Delmas R, Peuch GM V-H 2005 Physique et chimie del’atmosphére (Paris : Echelles) p640
4. Shindell D T, Faluvegi G, Koch D M, Schmidt G A, Unger N, Bauer S E 2009 Science 326 716
5. SolomonS, Qin D, Manning M, Chen Z, Marquis M, Averyt K B, Tignor M, Miller H L 2007 Intergovernmental panel on Climate Change Working Group 1 Science, Climate Change 2007 : the Physical Science Basis (Cambridge: Cambridge University Press Cambridge United Kingdom) p996
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献