强激光与粒子束, 2003, 15 (1): 9, 网络出版: 2006-04-28   

1.315μm附近CO2的高分辨率吸收光谱

High-resolution absorption spectra of CO2 near 1.315μm
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
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)×10-24cm2.仅计算谱线吸收的吸收截面为0.18×10-24cm2.在1.315μm波段CO2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.
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.
参考文献

[1] Valero F P J. Absolute intensity measurements of the CO2 bands 401III←000 and 411III←010[J];. J Mole Spectrosc, 1977, 68:269-279.

[2] Rothman L S, Hawkins R L, Wattson R B, et al. Energy levels, intensities, and linewidths of atmospheric carbon dioxide bands[J];. JQSRT, 1992, 48:537-566.

[3] Lawton S A, Bragg S L. Photoacoustic absorption spectra of atmospheric gases near 7 603cm-1[J];. Applied Optics, 1984, 23(18):3042-3044.

[4] Bragg S L, Lawton S A, Wiswall C E. Absolute measurements of absorption at the iodine-laser frequency in atmospheric gases[J];. Optics Lett, 1985, 10(7):321-323.

[5] 邬承就, 魏合理, 袁怿谦, 等. 激光长程吸收光谱法测量高分辨率大气吸收光谱[J];. 光学学报, 2002, 22(2):238-242.(Wu C J, Wei H L, Yuan Y Q, et al. The high-resolution absorption spectra of atmosphere measured by laser long-path absorption[J];. Acta Optica Sinica, 2002, 22(2):238-242)

[6] 魏合理,邬承就, 马志军, 等. 提高大气吸收光谱测量分辨率的一种新方法[J];. 光学学报, 2002, 22(2):165-169.(Wei H L, Wu C J, Ma Z J, et al. A new method for improving the measurement spectral resolution of atmospheric absorption spectra[J];. Acta Optica Sinica, 2002, 22(2):165-169)

[7] Watkins W R. Path differencing: an improvement to multipass absorption cell measurements[J];. Applied Optics, 1976, 15(1):16-18.

[8] 邬承就, 袁怿谦, 曹百灵, 等. 可调谐激光程差法和长程吸收光谱法联合测量大气分子吸收[J];. 测试技术学报, 2002, 16(增刊):1092-1096. (Wu C J, Yuan Y Q, Cao B L, et al. Long-path and path differencing combine measurement of atmospheric molecular absorption using tunable laser[J];. Journal of Test and Measurement Technology, 2002, 16(Mono):1092-1096)

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. 邬承就, 袁怿谦, 曹百灵, 马志军, 龚知本. High-resolution absorption spectra of CO2 near 1.315μm[J]. High Power Laser and Particle Beams, 2003, 15(1): 9.

本文已被 1 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!