| 液氢平面低温冷冻靶的红外吸收谱 |
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| 引用本文： | 毕鹏,刘元琼,唐永建,杨向东,雷海乐. 液氢平面低温冷冻靶的红外吸收谱[J]. 物理学报, 2010, 59(11): 7531-7534 |
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| 作者姓名： | 毕鹏 刘元琼 唐永建 杨向东 雷海乐 |
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| 作者单位： | (1)四川大学原子与分子物理研究所,成都 610065; (2)四川大学原子与分子物理研究所,成都 610065;中国工程物理研究院激光聚变研究中心,绵阳 621900; (3)中国工程物理研究院激光聚变研究中心,绵阳 621900 |
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| 摘 要： | 利用自主研制的平面低温冷冻靶系统和低温红外光谱测量系统,测量低温条件下液态氢的红外吸收谱,得出基频Q1(0)吸收峰位在4237.3cm-1处,随着温度从19.75K降到16.75K,吸收峰位几乎没有发生移动,而吸收增强.基于量子力学的非简谐近似,研究了氢分子的振动频率,得出H2的红外吸收频率与实验结果值一致.
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| 关 键 词： | 惯性约束核聚变 冷冻靶 氢 红外光谱 |
| 收稿时间： | 2009-11-15 |
| 修稿时间： | 2010-03-01 |
Infrared absorption of liquid-hydrogen planar cryotargets |
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| Bi Peng,Liu Yuan-Qiong,Tang Yong-Jian,Yang Xiang-Dong,Lei Hai-Le. Infrared absorption of liquid-hydrogen planar cryotargets[J]. Acta Physica Sinica, 2010, 59(11): 7531-7534 |
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| Authors: | Bi Peng Liu Yuan-Qiong Tang Yong-Jian Yang Xiang-Dong Lei Hai-Le |
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| Affiliation: | Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;Research Centre of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China |
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| Abstract: | Using a home-made cryotarget system and infrared spectroscopy system, we measure the infrared absorption spectra of liquid hydrogen at low temperaturs. It is found that the fundamental vibration frequency of hydrogen molecule is 4237.3 cm-1. As liquid hydrogen cools from 19.75 K down to 16.75 K, the infrared absorption is enhanced. The vibration frequency of hydrogen molecules is calculated on the basis of non-harmonic approximation in order to explain the experimental ones. |
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| Keywords: | inertial confinement fusion cryotarget hydrogen Infrared spectrum |
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