| 气相二氧化碳分子拉曼退偏比的准确测量 |
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| 引用本文： | 靳玉娟,喻远琴,王钰熙,林珂,周晓国,刘世林.气相二氧化碳分子拉曼退偏比的准确测量[J].化学物理学报,2015,28(1):17-20. |
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| 作者姓名： | 靳玉娟 喻远琴 王钰熙 林珂 周晓国 刘世林 |
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| 作者单位： | 安徽大学物理与材料科学学院，合肥 230039,安徽大学物理与材料科学学院，合肥 230039,中国科学技术大学合肥微尺度物质科学国家实验室，化学物理系，合肥 230026,中国科学技术大学合肥微尺度物质科学国家实验室，化学物理系，合肥 230026,中国科学技术大学合肥微尺度物质科学国家实验室，化学物理系，合肥 230026,中国科学技术大学合肥微尺度物质科学国家实验室，化学物理系，合肥 230026 |
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| 摘 要： | 利用灵敏的光声拉曼光谱技术对气相二氧化碳分子在1240～1430 cm-1振动光谱的拉曼退偏比进行了测量. 通过测量并拟合光声拉曼信号强度随两束入射光偏振方向夹角的变化，得到了比文献报道中更为精确的退偏比数据.
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| 关 键 词： | 退偏比，准确测量，光声拉曼光谱，全局拟合 |
| 收稿时间： | 2014/9/17 0:00:00 |
Accurate Measurement of Raman Depolarization Ratio in Gaseous CO2 |
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| Yu-juan Jin,Yuan-qin Yu,Yu-xi Wang,Ke Lin,Xiao-guo Zhou and Shi-lin Liu.Accurate Measurement of Raman Depolarization Ratio in Gaseous CO2[J].Chinese Journal of Chemical Physics,2015,28(1):17-20. |
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| Authors: | Yu-juan Jin Yuan-qin Yu Yu-xi Wang Ke Lin Xiao-guo Zhou and Shi-lin Liu |
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| Institution: | School of Physics and Material Science, Anhui University, Hefei 230039, China,School of Physics and Material Science, Anhui University, Hefei 230039, China,Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China,Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China,Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China and Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | The Raman depolarization ratios of gaseous CO2 in the spectral range of 1240-1430 cm-1 are determined with a sensitive photoacoustic Raman spectroscopy, and more accurate data compared to the literature results are presented. The precision of the obtained depolarization ratio is achieved by measuring and fitting the dependence of the PARS signal intensity on the cross angle between the polarizations of two incident laser beams. |
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| Keywords: | Depolarization ratio Accurate measurement Photoacoustic Raman spec-troscopy Global fitting |
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