| Investigation of the A2Σ- state of CuO by laser-induced fluorescence |
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| 引用本文： | 金瑾,冉琴,张霄鹏,陈旸,陈从香.Investigation of the A2Σ- state of CuO by laser-induced fluorescence[J].中国物理 B,2002,11(5):481-485. |
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| 作者姓名： | 金瑾 冉琴 张霄鹏 陈旸 陈从香 |
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| 作者单位： | Open Laboratory of Bond-Selective Chemistry, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Open Laboratory of Bond-Selective Chemistry, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Open Laboratory of Bond-Selective Chemistry, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Open Laboratory of Bond-Selective Chemistry, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;Open Laboratory of Bond-Selective Chemistry, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant Nos 29873045 and 20073040), the Major Programme of the Chinese Academy of Sciences, and the State Key Development Programme for Basic Research of China (Grant No 1999075304). |
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| 摘 要： | The laser-induced fluorescence excitation spectrum of the A2Σ－X2Π3/2 transition of CuO in the 540－620nm region has been studied, where the CuO molecule was produced by using the technique of dc discharge reaction under a supersonic condition. We have recorded and rotationally analysed the 0－0, 1－0, 2－0 and 3－0 bands. The rotational constants of the upper state A2Σ- were determined and vibrational constants improved. In addition, the lifetime measurement for the A2Σ- state was carried out under the collision-free condition, and the lifetimes obtained are 469±2, 456±2, 488±3 and 490±4ns for v'=0, v'=1, v'=2 and v'=3 levels, respectively.
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| 关 键 词： | CuO A^2∑^－态 激光感应荧光 |
| 收稿时间： | 2001-05-20 |
Investigation of the A2Σ- state of CuO by laser-induced fluorescence |
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| Jin Jin,Ran Qin,Zhang Xiao-Peng,Chen Yang and Chen Cong-Xiang.Investigation of the A2Σ- state of CuO by laser-induced fluorescence[J].Chinese Physics B,2002,11(5):481-485. |
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| Authors: | Jin Jin Ran Qin Zhang Xiao-Peng Chen Yang and Chen Cong-Xiang |
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| Institution: | Open Laboratory of Bond-Selective Chemistry, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | The laser-induced fluorescence excitation spectrum of the A2Σ－X2Π3/2 transition of CuO in the 540－620nm region has been studied, where the CuO molecule was produced by using the technique of dc discharge reaction under a supersonic condition. We have recorded and rotationally analysed the 0－0, 1－0, 2－0 and 3－0 bands. The rotational constants of the upper state A2Σ- were determined and vibrational constants improved. In addition, the lifetime measurement for the A2Σ- state was carried out under the collision-free condition, and the lifetimes obtained are 469±2, 456±2, 488±3 and 490±4ns for v'=0, v'=1, v'=2 and v'=3 levels, respectively. |
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| Keywords: | CuO excitation spectrum |
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