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1.315μm附近CO2的高分辨率吸收光谱
引用本文:邬承就,袁怿谦,曹百灵,马志军,龚知本.1.315μm附近CO2的高分辨率吸收光谱[J].强激光与粒子束,2003,15(1):9-12.
作者姓名:邬承就  袁怿谦  曹百灵  马志军  龚知本
作者单位:中国科学院 安徽光学精密机械研究所 国家八六三计划大气光学重点实验室, 安徽 合肥 230031
基金项目:国家863计划项目资助课题
摘    要: 利用可调谐激光长程吸收光谱测量系统,记录到1.315μm附近高气压(80kPa和40kPa)CO2的高分辨率吸收光谱,拟合分析获得谱线参数,结果与HITRAN 2k的数据基本一致。用程差法测量了绝对吸收,氧碘激光频率(7 603.138 5cm-1)的总吸收截面为(0.23~0.29)×-24cm2。仅计算谱线吸收的吸收截面为0.18×10-24cm2。在1.315μm波段COCO2存在连续吸收,吸收截面为(0.05~0.11)×10-24cm2。还讨论了测量误差问题。

关 键 词:吸收光谱的测量  CO2的高分辨率吸收光谱  大气分子吸收光谱
文章编号:1001-4322(2003)01-0009-04
收稿时间:2002/4/10

High-resolution absorption spectra of CO2 near 1.315μm
wu cheng jiu,yuan yi qian,cao bai ling,ma zhi jun,gong zhi ben.High-resolution absorption spectra of CO2 near 1.315μm[J].High Power Laser and Particle Beams,2003,15(1):9-12.
Authors:wu cheng jiu  yuan yi qian  cao bai ling  ma zhi jun  gong zhi ben
Institution:Anhui Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, P.O.Box 1125, Hefei 230031, China
Abstract:Using a laser long-path experimental system with CO2 of 80 or 40 kPa, the high-resolution absorption spectra of CO2 near 1.315 μm have been recorded and the spectroscopic line parameters are obtained. They are comparable with the data in HITRAN 2 k. The absolute absorption is determined by means of path differencing. The total absorption cross section is (0.23-0.29)×10-24 cm2 for CO2 at 7603.1385 cm-1, and the absorption cross section that comes of the spectroscopic lines is 0.18×10-24 cm2. There is continuum absorption in this region and the continuum absorption cross section is (0.05-0.11)×10-24 cm2. The error is discussed as well.
Keywords:Measurement of absorption spectra  High-resolution absorption spectra of CO_2  Atmospheric molecular absorption spectroscopy
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