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李昌勇
发布时间:2018-05-10 浏览:
李昌勇  
教授、博导  

  原子与分子理论计算,包含里德堡原子的原子与分子理论计算,包含里德堡原子的Stark主要从事冷原子物理,激光光谱,分子光谱等方面科研工作。原子与分子理论计算,包含里德堡原子的Stark1994原子与分子理论计算,包含里德堡原子的Stark年-原子与分子理论计算,包含里德堡原子的Stark1997原子与分子理论计算,包含里德堡原子的Stark年在安徽光机所师从马树森研究员从事准分子激光器的研究工作。1997年-1999年山西大学应用光电研究室教师,从事碱金属激光光谱研究工作1999年-2002年山西大学光学专业博士研究生,师从贾锁堂教授进行碱金属原子分子激光光谱方面研究,用共振多光子电离光谱技术测量了钾分子激发态的光电离光谱,获得了钾分子激发态的振动参数2003年-2005年在台湾原子分子科学研究所进行博士后研究,从事分子的零动能光谱学工作。采用质量分辨阈值电离光谱技术首次精确测量了十几种有机分子的电离能及分子离子基态的振动光谱。进行了同位素分子,旋转异构物分子的光谱测量与辨识,发表相关论文十多篇。近几年主要进行原子分子的理论计算及激光冷却原子和分子的相关研究,计算了碱金属原子里德堡态Stark结构,利用量化理论计算分子的势能曲线。发表论文70多篇。2001碱金属原子分子高激发态非线性光谱特性研究获山西省科技进步二等奖,第三获奖人;所授课程2007年评为原子物理学国家精品课程。

办公地址:激光光谱研究所217

电子邮箱:lichyong@sxu.edu.cn

办公电话:0351-7018489

研究方向

    原子与分子理论计算,包含里德堡原子的Stark效应、寿命、跃迁几率、电偶极矩、电荷分布等特性计算;利用量子化学软件进行自由基、分子和团簇等的电子态、振动态的特性计算。实验工作采用零动能光谱和共振多光子电离等光谱技术获取芳香类分子、生化类分子、自由基和外电场中原子的能级、寿命和电偶极矩等未知特性数据,为化学物理学、生物物理学和天文物理学等学科准确鉴别分子和原子提供依据。

  在研项目

    用零动能光谱研究外电场中铯原子电离阈上能级(编号:61378039),来源:国家自然科学基金,研究期限:2014.1-2017.12

       代表性论文

1.  Hao Zhang, Limei Wang, Linjie Zhang, Changyong Li, Liantuan Xiao, Jianming Zhao, Suotang Jia, Patrick Cheinet, Daniel Comparat, and Pierre Pillet, Stark-induced L-mixing interferences in ultracold cesium Rydberg atoms, Phys. Rev. A, 87, 033405, 2013

2.  Huijie Dong, Ting Wang, Changyong Li, Jianming Zhao, Linjie Zhang, Stark spectra of cesium Rydberg states at the vicinity of n=18, Chin. Phys. B, 2013, 22(7), 073201, 2013

3.  王丽梅, 张好, 李昌勇, 赵建明, 贾锁堂, 铯Rydberg 原子Stark态的避免交叉,物理学报, 62, 013201, 2013

4.  Changyong Li, Ting Hao, Hao Zhang, Xinbo Zhu, Guanqi Tao, Linjie Zhang, Jianming Zhao, and Suotang Jia, Numerically Calculated Stark Structures of Cesium Rydberg Atom and Experimental Observation in an Ultracold Gas, J. Phys. Soc. Jpn., 81, 044302, 2012

5.  李昌勇,张临杰,赵建明,贾锁堂, 铯原子里德堡态Stark能量及电偶极矩的测量和理论计算,物理学报, 61, 163202, 2012

6.  Zhigang Feng, Hao Zhang, Junling Che, Linjie Zhang, Changyong Li, Jianming Zhao, and Suotang Jia, Collisional loss of cesium Rydberg atoms in a magneto-optical trap, Phys. Rev.A, 83, 042711, 2011

7.  Jianming Zhao, Hao Zhang, Zhigang Feng, Xingbo Zhu, Linjie Zhang, Changyong Li, and Suotang Jia, Measurement of polarizability of cesium nD state in magneto-optical trap, J. Phys. Soc. Jpn., 80, 034303, 2011

8.  Linjie Zhang, Zhigang Feng, Jianming Zhao, Changyong Li, Suotang Jia, Evolution of the pairs of ultracold Rydberg atoms in the repulsive potential, Optics Express, 18(11), 11599-11606, 2010

9.  Linjie Zhang, Zhigang Feng, Jianming Zhao, Changyong Li, Suotang Jia, Many-Body Ionization of Dense Rydberg Gas in Repulsive Potential, J. Phys. Soc. Jpn, 79(5), 054301, 2010

10.Guanqi Tao, Changyong Li, Linjie Zhang, Jianming Zhao, and Suotang Jia, Numerical Calculation and Experimental observation for Stark Energy Levels of Atomic Cesium at High Rydberg States, Acta Sinica Quantum Optica, 15(2), 185 (in Chinese) , 2009

11.Zhigang Feng, Linjie Zhang, Jianming Zhao, Changyong Li, Anling Li, and Suotang Jia, Measurement of Ionization Threshold of  Ultracold Cesium Rydberg Atoms in Static Electric field, Chin. Phys. Lett., 25(7), 2661-2663, 2008

12.Linjie Zhang, Zhigang Feng, Anling Li, Jianming Zhao, Changyong Li, Suotang Jia, Experimental Research of Spontaneous Evolution from Ultracold Rydberg Atoms to Plasma, Chin. Phys. Lett., 25, 1362, 2008

13.Qun Jing, Zhigang Feng, Linjie Zhang, Changyong Li, Jianming Zhao, Suotang Jia, Creation of an Ultracold Plasma by Photoionizing Laser-Cooled Cesium Atom,  Chin. Phys. Lett., 25(12), 4248-4250, 2008

14.L.R. Wang, J. Ma, C.Y. Li, J.M. Zhao, L.T. Xiao, S.T. Jia, High sensitive photoassociation spectroscopy based on modulated ultra-cold Cs atoms, Appl. Phys. B, 98(10), 53, 2007

15.Changyong Li, Shih Chang Yang, and Wen Bih Tzeng, Mass analyzed threshold ionization spectroscopy of methylp-aminobenzoate cation, Chem. Phys. Lett., 421,77-80, 2006

16.Liwei Yuan, Changyong Li, Jung Lee Lin, Shih Chang Yang, and Wen Bih Tzeng, Mass analyzed threshold ionization spectroscopy of o-fluorophenol and o-methoxyphenol cations and influence of the nature and relative location of substituents, Chem. Phys., 323, 429-438, 2006

17.Changyong Li, Jung Lee Lin, and Wen Bih Tzeng, Mass-analyzed threshold ionization spectroscopy of the rotamers of p-n-propylphenol cation and configuration effect,  J. Chem. Phys., 122, 044311-1--04311-10, 2005

18.Changyong Li, Manik Pradhan, Wen Bih Tzeng, Mass analyzed threshold ionization spectroscopy of p-cyanophenol cation and the CN substitution effect, Chem. Phys. Lett., 411, 506-510, 2005

19.Changyong Li, Huawei Su, and Wen Bih Tzeng, Rotamers of p-methoxyphenol cation studied by mass-analyzed threshold ionization spectroscopy, Chem, Phys. Lett., 410, 99-103, 2005

20.Liwei Yuan, Changyong Li, Wen Bih Tzeng, Site-specific H/D Exchange of p-Methoxyphenol Studied by Resonant Two-Photon Ionization and Mass-Analyzed Threshold Ionization Spectroscopy,J. Phys. Chem. A., 109, 9481-9487, 2005

21.Jiangou Huang, Changyong Li, Wen Bih Tzeng, Mass analyzed threshold ionization spectroscopy of p-methylanisole cation and the substitution effect, Chem. Phys. Lett., 414, 276-281, 2005

22.Manik Pradhan, Changyong Li, Jung Lee Lin, and Wen Bih Tzeng, Mass analyzed threshold ionization spectroscopy of anisole cation and the OCH3 substitution effect, Chem. Phys. Lett., 407, 100-104, 2005

23.Jung Lee Lin, Changyong Li, and Wen Bih Tzeng, Mass-analyzed threshold ionization spectroscopy of p-methylphenol and p-ethylphenol cations and the alkyl substitution effect, J. Chem. Phys., 120, 10513-10519, 2004

24.Bing Zhang, Changyong Li, Huawei Su, Jung Lee Lin, and Wen Bih Tzeng, Mass analyzed threshold ionization spectroscopy of p-fluorophenol and the p-fluoro substitution effect, Chem. Phys. Lett., 390, 65-70, 2004