| 傅立叶变换激光腔内吸收光谱方法研究吸收谱线的强度与线形 |
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| 引用本文： | 吴志永,成国胜,王乐,刘安雯,郝绿原,胡水明.傅立叶变换激光腔内吸收光谱方法研究吸收谱线的强度与线形[J].化学物理学报,2005,18(3):313-318. |
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| 作者姓名： | 吴志永 成国胜 王乐 刘安雯 郝绿原 胡水明 |
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| 作者单位： | 中国科学技术大学，中国科学院选键化学重点实验室，中国科学技术大学，中国科学院选键化学重点实验室，中国科学技术大学，中国科学院选键化学重点实验室，中国科学技术大学，中国科学院选键化学重点实验室，中国科学技术大学，中国科学院选键化学重点实验室，中国科学技术大学，中国科学院选键化学重点实验室 合肥230026，合肥230026，合肥230026，合肥230026，合肥230026，合肥230026 |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina(20103007,10274077). |
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| 摘 要： | 在原有傅立叶变换激光腔内吸收光谱实验装置的基础上,利用信号差分方法减少了光强波动对实验干涉谱图的影响,改善了信噪比.通过对大气中氧气在760nm处的吸收谱线的绝对强度测量,验证了该方法的定量测量能力.在不同压力条件下对磷烷v=6伸缩局域模泛频吸收谱带进行了测量,获得了其谱线的自压力加宽和自压力线移参数.
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| 关 键 词： | 吸收光谱 谱线线形 谱线强度 激光腔内吸收 磷烷 |
| 收稿时间： | 2004/3/29 0:00:00 |
Absorption Line Intensity and Profile Studied by Fourier Transform Intra-cavity Laser Absorption Spectroscopy |
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| Wu Zhiyong,Cheng Guosheng,Wang Le,Liu Anwen,Hao Luyuan and Hu Shuiming.Absorption Line Intensity and Profile Studied by Fourier Transform Intra-cavity Laser Absorption Spectroscopy[J].Chinese Journal of Chemical Physics,2005,18(3):313-318. |
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| Authors: | Wu Zhiyong Cheng Guosheng Wang Le Liu Anwen Hao Luyuan and Hu Shuiming |
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| Institution: | Wu Zhiyong,Cheng Guosheng,Wang Le,Liu Anwen,Hao Luyuan,Hu Shuiming~** |
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| Abstract: | Based on Fourier-transform intra-cavity laser absorption spectroscopy (FT-ICLAS) setup reported, a signal differential module is introduced to reduce the noise rising from the fluctuation of the laser power and to improve the quality of the interferogram obtained in the experiment. The capability to do quantitative measurement was demonstrated by recording the atmospheric oxygen absorption near 760 nm. The v=6 local mode stretching overtone spectra of phosphine were recorded with different sample pressure. The pressure caused self-broadening and line shift parameters of this band were achieved. |
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| Keywords: | Absorption spectroscopy Spectral line profile Line intensity Intra-cavity laser absorption Phosphine |
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