中国物理B ›› 2018, Vol. 27 ›› Issue (2): 23301-023301.doi: 10.1088/1674-1056/27/2/023301

• SPECIAL TOPIC—Soft matter and biological physics (Review) • 上一篇    下一篇

Temperature dependence of line parameters of 12C16O2 near 2.004 μm studied by tunable diode laser spectroscopy

Hongliang Ma(马宏亮), Mingguo Sun(孙明国), Shenlong Zha(査申龙), Qiang Liu(刘强), Zhensong Cao(曹振松), Yinbo Huang(黄印博), Zhu Zhu(朱柱), Ruizhong Rao(饶瑞中)   

  1. 1. Key Laboratory of Atmospheric Optics, Chinese Academy Sciences, Hefei 230031, China;
    2. Anqing Normal University, Anqing 246133, China
  • 收稿日期:2017-10-24 修回日期:2017-11-28 出版日期:2018-02-05 发布日期:2018-02-05
  • 通讯作者: Zhensong Cao E-mail:zscao@aiofm.ac.cn
  • 基金资助:

    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 41205021 and 61701006), the Youth Innovation Promotion Association of the Chinese Academy of Sciences (Grant No. 2015264), and the Scientific Research Foundation of the Higher Education Institutions of Anhui Province, China (Grant No. KJ2015A234).

Temperature dependence of line parameters of 12C16O2 near 2.004 μm studied by tunable diode laser spectroscopy

Hongliang Ma(马宏亮)1,2, Mingguo Sun(孙明国)1, Shenlong Zha(査申龙)2, Qiang Liu(刘强)1, Zhensong Cao(曹振松)1, Yinbo Huang(黄印博)1, Zhu Zhu(朱柱)2, Ruizhong Rao(饶瑞中)1   

  1. 1. Key Laboratory of Atmospheric Optics, Chinese Academy Sciences, Hefei 230031, China;
    2. Anqing Normal University, Anqing 246133, China
  • Received:2017-10-24 Revised:2017-11-28 Online:2018-02-05 Published:2018-02-05
  • Contact: Zhensong Cao E-mail:zscao@aiofm.ac.cn
  • About author:33.20.-t; 33.20.Ea
  • Supported by:

    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant Nos. 41205021 and 61701006), the Youth Innovation Promotion Association of the Chinese Academy of Sciences (Grant No. 2015264), and the Scientific Research Foundation of the Higher Education Institutions of Anhui Province, China (Grant No. KJ2015A234).

摘要:

The absorption spectrum of carbon dioxide at 2.004 μm has been recorded at sample temperatures between 218.0 K and room temperature, by using a high-resolution tunable diode laser absorption spectrometer (TDLAS) combined with a temperature controlled cryogenically cooled absorption cell. The self-, N2-, and air-broadening coefficients for nine transitions of 12C16O2 belonging to the 20012 ← 00001 band in the 4987 cm-1-4998 cm-1 region have been measured at different temperatures. From these measurements, we have further determined the temperature dependence exponents of the pressure-broadening coefficients. To the best of our knowledge, the temperature dependence parameters of the collisional broadening coefficients are reported experimentally for the first time for these nine transitions. The measured halfwidth coefficients and the air temperature dependence exponents of these transitions are compared with the available values reported in the literature and HITRAN 2012 database. Agreements and discrepancies are also discussed.

关键词: carbon dioxide, absorption spectroscopy, temperature-dependent exponent, collisional broadening coefficient

Abstract:

The absorption spectrum of carbon dioxide at 2.004 μm has been recorded at sample temperatures between 218.0 K and room temperature, by using a high-resolution tunable diode laser absorption spectrometer (TDLAS) combined with a temperature controlled cryogenically cooled absorption cell. The self-, N2-, and air-broadening coefficients for nine transitions of 12C16O2 belonging to the 20012 ← 00001 band in the 4987 cm-1-4998 cm-1 region have been measured at different temperatures. From these measurements, we have further determined the temperature dependence exponents of the pressure-broadening coefficients. To the best of our knowledge, the temperature dependence parameters of the collisional broadening coefficients are reported experimentally for the first time for these nine transitions. The measured halfwidth coefficients and the air temperature dependence exponents of these transitions are compared with the available values reported in the literature and HITRAN 2012 database. Agreements and discrepancies are also discussed.

Key words: carbon dioxide, absorption spectroscopy, temperature-dependent exponent, collisional broadening coefficient

中图分类号:  (Molecular spectra)

  • 33.20.-t
33.20.Ea (Infrared spectra)