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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
[1] Chen Q F, Cai L C, Jing F Q, Chen D Q 1999 Acta Phys. sin. 48 485 (in Chinese)[陈其峰、 蔡灵仓、 经福谦、 陈栋泉 1999 物理学报 48 485]
[2] Wang L, Wu Y C, Wang H B, Liu H J, Ge F F, Chen J B, Zheng Z J, Gu Y Q, Shi S T, Luo X B, Yang C W 2007 Acta Phys. sin. 56 6918 (in Chinese) [王 磊、 吴玉迟、 王红斌、 刘红杰、 葛芳芳、 陈家斌、 郑志坚、 谷渝秋、 史叔廷、 罗小兵、 杨朝文 2007 物理学报 56 6918 ]
[3] Zhou J J, Chen Y G, Wu C L, Zheng X, Fang Y C, Gao T 2009 Acta Phys. sin. 58 4853 (in Chinese)[周晶晶、 陈云贵、 吴朝玲、 郑 欣、 房玉超、 高 涛 2009 物理学报 58 4853]
[4] Dai W, Tang Y J, Wang C Y, Sun W G 2009 Acta Phys. sin. 58 7313 (in Chinese) [戴 伟、 唐永建、 王朝阳、 孙卫国 2009 物理学报 58 7313]
[5] Zheng L, Wang C, Li S H, Liu B C, Ni G Q, Li R X, Xu Z Z 2006 Chin. Phys. 15 0697
[6] Lindl J 1995 Phys. Plasmas 2 3933
[7] Lei H L, Li J, Tang Y J, Shi H L, Liu Y Q 2009 High Power Laser and Particle Beams 21 0053(in Chinese) [雷海乐、 黎 军、 唐永建、 师洪丽、 刘元琼 2009 强激光与粒子束 21 0053]
[8] Lei H L, Li J, Tang Y J, Liu Y Q 2009 Rev. Sci. Instrum 80 033103
[9] Okumura M, Chan M C, Oka T 1989 Phys. Rev. Lett. 62 32
[10] Chan M C, Okumura M, Gabrys C M, Xu L W, Rehfuss B D, Oka T 1991 Phys. Rev. Lett. 66 2060
[11] Steinhoff R A, Winnewisser B P, Winnewisser M 1994 Phys. Rev. Lett. 73 2833
[12] Mengel M, Winnewisser B P, Winnewisser M 1997 Phys. Rev. B 55 10420
[13] Zhang Y, Byers T J, Chan M C, Momose T, Kerr K E, Weliky D P, Oka T 1998 Phys. Rev. B 58 218
[14] Kranedonk J V, Karl G 1968 Rev. Mod. Phys. 40 531
[15] Morishita K , Ioarashit J 1989 Journal of the Physical Society of Japan 58 3406
[16] Deng W P, Xu G, Wan L, Liu A W, Gao B, Du J H, Hu S M, Chen Y 2008 Acta Phys. Chim. Sin. 24 1329
[17] Wang Y, Dong S L 2005 Chin. Phys. 14 1942
[18] Chen G B, Bao R, Huang Y H 2006 Cryogenic engineering technical data (Beijing: Chemical Industry Press) p122—127 (in Chinese) [陈国邦、 包 锐、 黄永华 2006 低温工程技术数据(北京:化学工业出版社)第122—127页]
[19] Miller R G J, Stace B C (Translated by Yu Q L) 1985 Laboratory Methods in Infrared Spectroscopy(Second Edition)(Beijing:Mechanical Industry Press) p67 (in Chinese)[密勒R.G.J.、 斯特斯B.C. 著 于铨林 译 1985 红外光谱学的实 验方法(第二版) (北京: 机械工业出版社)第67页] 〖20] Stuart B 2004 Infrared Spectroscopy: Fundamentals and Applications (Chichester:John Wiley and Sons) p5
[20] Kranendonk J V 1983 Solid Hydrogen: Theory of the Properties of Solid H2,HD and D/i>2 (New York: Plenum Press)
[21] Xu Y Z 1987 Theory of Molecule Spectroscopy (Beijing:Tsinghua University Press) p174 (in Chinese) [徐亦庄 1988 分子光谱理论 (北京:清华大学出版社)第174页]
[22] Huber K P, Herzberg G 1979 Molecular Spectra and Molecular Structure:IV. Constants of Diatomic Molecules (New York: Van Nostrand Reinhold) p250
[23] Silvera I F 1980 Rev. Mod. Phys. 52 393
[24] Nucara A, Calvani P, Cunsolo S, Lupi S, Ruzicka B 1993 Phys. Rev. B 47 2590
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[1] Chen Q F, Cai L C, Jing F Q, Chen D Q 1999 Acta Phys. sin. 48 485 (in Chinese)[陈其峰、 蔡灵仓、 经福谦、 陈栋泉 1999 物理学报 48 485]
[2] Wang L, Wu Y C, Wang H B, Liu H J, Ge F F, Chen J B, Zheng Z J, Gu Y Q, Shi S T, Luo X B, Yang C W 2007 Acta Phys. sin. 56 6918 (in Chinese) [王 磊、 吴玉迟、 王红斌、 刘红杰、 葛芳芳、 陈家斌、 郑志坚、 谷渝秋、 史叔廷、 罗小兵、 杨朝文 2007 物理学报 56 6918 ]
[3] Zhou J J, Chen Y G, Wu C L, Zheng X, Fang Y C, Gao T 2009 Acta Phys. sin. 58 4853 (in Chinese)[周晶晶、 陈云贵、 吴朝玲、 郑 欣、 房玉超、 高 涛 2009 物理学报 58 4853]
[4] Dai W, Tang Y J, Wang C Y, Sun W G 2009 Acta Phys. sin. 58 7313 (in Chinese) [戴 伟、 唐永建、 王朝阳、 孙卫国 2009 物理学报 58 7313]
[5] Zheng L, Wang C, Li S H, Liu B C, Ni G Q, Li R X, Xu Z Z 2006 Chin. Phys. 15 0697
[6] Lindl J 1995 Phys. Plasmas 2 3933
[7] Lei H L, Li J, Tang Y J, Shi H L, Liu Y Q 2009 High Power Laser and Particle Beams 21 0053(in Chinese) [雷海乐、 黎 军、 唐永建、 师洪丽、 刘元琼 2009 强激光与粒子束 21 0053]
[8] Lei H L, Li J, Tang Y J, Liu Y Q 2009 Rev. Sci. Instrum 80 033103
[9] Okumura M, Chan M C, Oka T 1989 Phys. Rev. Lett. 62 32
[10] Chan M C, Okumura M, Gabrys C M, Xu L W, Rehfuss B D, Oka T 1991 Phys. Rev. Lett. 66 2060
[11] Steinhoff R A, Winnewisser B P, Winnewisser M 1994 Phys. Rev. Lett. 73 2833
[12] Mengel M, Winnewisser B P, Winnewisser M 1997 Phys. Rev. B 55 10420
[13] Zhang Y, Byers T J, Chan M C, Momose T, Kerr K E, Weliky D P, Oka T 1998 Phys. Rev. B 58 218
[14] Kranedonk J V, Karl G 1968 Rev. Mod. Phys. 40 531
[15] Morishita K , Ioarashit J 1989 Journal of the Physical Society of Japan 58 3406
[16] Deng W P, Xu G, Wan L, Liu A W, Gao B, Du J H, Hu S M, Chen Y 2008 Acta Phys. Chim. Sin. 24 1329
[17] Wang Y, Dong S L 2005 Chin. Phys. 14 1942
[18] Chen G B, Bao R, Huang Y H 2006 Cryogenic engineering technical data (Beijing: Chemical Industry Press) p122—127 (in Chinese) [陈国邦、 包 锐、 黄永华 2006 低温工程技术数据(北京:化学工业出版社)第122—127页]
[19] Miller R G J, Stace B C (Translated by Yu Q L) 1985 Laboratory Methods in Infrared Spectroscopy(Second Edition)(Beijing:Mechanical Industry Press) p67 (in Chinese)[密勒R.G.J.、 斯特斯B.C. 著 于铨林 译 1985 红外光谱学的实 验方法(第二版) (北京: 机械工业出版社)第67页] 〖20] Stuart B 2004 Infrared Spectroscopy: Fundamentals and Applications (Chichester:John Wiley and Sons) p5
[20] Kranendonk J V 1983 Solid Hydrogen: Theory of the Properties of Solid H2,HD and D/i>2 (New York: Plenum Press)
[21] Xu Y Z 1987 Theory of Molecule Spectroscopy (Beijing:Tsinghua University Press) p174 (in Chinese) [徐亦庄 1988 分子光谱理论 (北京:清华大学出版社)第174页]
[22] Huber K P, Herzberg G 1979 Molecular Spectra and Molecular Structure:IV. Constants of Diatomic Molecules (New York: Van Nostrand Reinhold) p250
[23] Silvera I F 1980 Rev. Mod. Phys. 52 393
[24] Nucara A, Calvani P, Cunsolo S, Lupi S, Ruzicka B 1993 Phys. Rev. B 47 2590
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