期刊
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
卷 201, 期 -, 页码 136-147出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2017.07.007
关键词
Carbon dioxide; IR tunable diode laser; Direct absorption spectroscopy; Line strength; Self-broadening coefficient; Temperature dependence exponent
资金
- National Natural Science Foundation of China [61475068, 11104237]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [15KJB140002]
- Science and Technology Program of Xuzhou City [KC16H0231, KC16SG257]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
The high-resolution absorption spectra of carbon dioxide were measured at sample temperatures in the range of 296-800K. The measurements were performed based on direct laser absorption spectroscopy using a tunable diode laser combined with a home-made heated static cell. Line strengths, self-broadening coefficients and their temperature dependences of five selected strong lines belonging to the 200124 <- 00001 band of carbon dioxide near 2.0 mu m were inferred from these measured spectra. To the best of our knowledge, this is the first study that measures the line parameters for the five selected strong CO2 lines at elevated temperature. The measured line strengths and self-broadening coefficients of these lines are compared with the available values listed in HITRAN/HITEMP database. The temperature dependence exponents of self-broadening coefficients are compared with theoretical calculations and values inferred from HITEMP2010. Agreements and discrepancies are discussed. (C) 2017 Elsevier Ltd. All rights reserved.
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