Lundqvist S, Margolis J, Reid J
Chalmers University of Technology, Department of Electrical Measurements, S-412 96 Goteborg, Sweden.
Appl Opt. 1982 Sep 1;21(17):3109-13. doi: 10.1364/AO.21.003109.
Foreign-gas broadening coefficients have been measured for selected lines of ozone in the 9.2-microm region and for several R -branch lines of nitric oxide in the 5.4-microm region using a computerized tunable diode laser spectrometer. The data analysis showed the importance of fitting a Lorentzian line shape out to several times the halfwidth to obtain a correct value of the broadening coefficient. The measured broadening coefficients of nitric oxide were in good agreement with those obtained by Abels and Shaw. The results of the analysis of eleven lines in the nu(1) band and five lines in the nu(3) band of ozone show a transition-dependent broadening coefficient. The average value of the foreign-gas broadening coefficients for the measured nu(1) and nu(3) lines are 0.075 and 0.073 cm(-1) atm(-1), respectively.
使用计算机控制的可调谐二极管激光光谱仪，测量了9.2微米区域中选定的臭氧谱线以及5.4微米区域中一氧化氮的几条R分支谱线的外来气体展宽系数。数据分析表明，将洛伦兹线型拟合至半高宽的几倍对于获得展宽系数的正确值很重要。测得的一氧化氮展宽系数与阿贝尔斯和肖得到的结果吻合良好。对臭氧ν(1)带中的11条谱线和ν(3)带中的5条谱线的分析结果表明，展宽系数与跃迁有关。所测ν(1)和ν(3)谱线的外来气体展宽系数的平均值分别为0.075和0.073厘米⁻¹ 大气压⁻¹。
