Yan Lu, Xin-fei Li, An-wen Liu, Shui-ming Hu. CO2 Pressure Shift and Broadening of Water Lines Near 790 nm[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 1-4. doi: 10.1063/1674-0068/27/01/1-4
Citation: Yan Lu, Xin-fei Li, An-wen Liu, Shui-ming Hu. CO2 Pressure Shift and Broadening of Water Lines Near 790 nm[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 1-4. doi: 10.1063/1674-0068/27/01/1-4

CO2 Pressure Shift and Broadening of Water Lines Near 790 nm

doi: 10.1063/1674-0068/27/01/1-4
Funds:  This work is supported by the National Natural Science Foundation (No.21225314 and No.20903085), the National Basic Research Program of China (No.2013CB834602) and the Fundamental Research Funds for the Central Universities .
  • Received Date: 2013-05-20
  • Carbon dioxide pressure-broadened ro-vibrational transitions belonging to the ?2+3?3 band of H2 16O have been measured with a sensitive cavity ring-down spectrometer. Water vapor of relatively low pressures (<0.5 Torr) was used to limit the self-collisions among water molecules. After the calibration using the precise atomic transitions of Rb and a thermo-stabilized Fabry-Pérot interferometer, 10-5 cm-1 requency accuracy has been achieved. Line parameters are derived from least-squares fitting of the spectra using the “soft” collision model. The retrieved line parameters can be applied in the study of water absorption in the CO2-rich atmospheres of planets like Venus and Mars.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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CO2 Pressure Shift and Broadening of Water Lines Near 790 nm

doi: 10.1063/1674-0068/27/01/1-4
Funds:  This work is supported by the National Natural Science Foundation (No.21225314 and No.20903085), the National Basic Research Program of China (No.2013CB834602) and the Fundamental Research Funds for the Central Universities .

Abstract: Carbon dioxide pressure-broadened ro-vibrational transitions belonging to the ?2+3?3 band of H2 16O have been measured with a sensitive cavity ring-down spectrometer. Water vapor of relatively low pressures (<0.5 Torr) was used to limit the self-collisions among water molecules. After the calibration using the precise atomic transitions of Rb and a thermo-stabilized Fabry-Pérot interferometer, 10-5 cm-1 requency accuracy has been achieved. Line parameters are derived from least-squares fitting of the spectra using the “soft” collision model. The retrieved line parameters can be applied in the study of water absorption in the CO2-rich atmospheres of planets like Venus and Mars.

Yan Lu, Xin-fei Li, An-wen Liu, Shui-ming Hu. CO2 Pressure Shift and Broadening of Water Lines Near 790 nm[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 1-4. doi: 10.1063/1674-0068/27/01/1-4
Citation: Yan Lu, Xin-fei Li, An-wen Liu, Shui-ming Hu. CO2 Pressure Shift and Broadening of Water Lines Near 790 nm[J]. Chinese Journal of Chemical Physics , 2014, 27(1): 1-4. doi: 10.1063/1674-0068/27/01/1-4

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