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| 差分浓度调制激光光谱技术 | |
| 引用本文： | 高晖,刘红平,段传喜,刘煜炎.差分浓度调制激光光谱技术[J].光学学报,2001,21(4):17-421. |
| 作者姓名： | 高晖 刘红平 段传喜 刘煜炎 |
| 作者单位： | 1. 武汉大学物理与电子信息学院,中国科学院武汉物理与数学研究所波谱与 2. 中国科学院武汉物理与数学研究所波谱与 3. 华东师范大学物理系,中国科学院武汉物理与数学研究所波谱与 |
| 基金项目： | 国家自然科学基金! (1970 40 16 )资助项目 |
| 摘 要： | 报道了在近红外波段的差分浓度调制激光光谱技术的研究工作，以N2^ 的浓度调制光谱为例，研究了浓度调制制激光光谱技术的特性。将浓度调制光谱与速度调制光谱相结合得到了速度调制光谱调制度与各因素的关系。同时展示的Ar激光发态的差分浓度调制光谱表明，差分浓度调制光谱技术在探测中性自由基分子和分子离子方面具有很大的应用潜力。 |
| 关 键 词： | 自由基 速度调制 浓度调制 激光光谱 差分浓度调制光谱技术 近红外波 分子离子 探测技术 |
A Novel Differential Concentration Modulation Spectroscopy |
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| Gao Hui , Liu Hongping Duan Chuanxi Liu Yuyan , ,Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,The Chinese Academy of Sciences,Wuhan.A Novel Differential Concentration Modulation Spectroscopy[J].Acta Optica Sinica,2001,21(4):17-421. | |
| Authors: | Gao Hui Liu Hongping Duan Chuanxi Liu Yuyan Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics The Chinese Academy of Sciences Wuhan |
| Institution: | Gao Hui 1,3) Liu Hongping 1) Duan Chuanxi 1) Liu Yuyan 1,2) 1),Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,The Chinese Academy of Sciences,Wuhan 430071 2) |
| Abstract: | A novel differential concentration modulation spectroscopic technique was demonstrated with the spectrum of N + 2 in the near infrared region. Its properties have been studied. Combining the concentration modulation spectroscopy with velocity modulation spectroscopy, the dependence of the signal to noise ratio on the modulation depth and various other factors are obtained. The high signal to noise ratio concentration modulation spectrum of Ar suggests that this spectroscopic technique will be a very sensitive and convenient method for detecting neutral free radicals and molecular ions. |
| Keywords: | free radicals velocity modulation concentration modulation laser spectroscopy |
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