用光电离技术探测钐原子的奇宇称束缚激发态的光谱

杨騄; 戴长建; 赵艳红

doi:10.7498/aps.62.053201

摘要

采用光电离探测方法,对钐原子奇宇称束缚激发态进行了系统研究.通过设计三条不同的激发路径, 采用共振激发方式,先将钐原子分三步从基态激发到不同的束缚激发态,然后采用光电离手段对其进行探测. 通过对第三步激发光的波长进行大范围的扫描,在同一能域内获得了三组不同的光谱. 通过比对三条路径所得到的三组光谱,不仅精确确定了大量奇宇称束缚激发态的能级位置, 而且还获得了相应跃迁的相对强度的信息.最后,通过运用三条不同的激发路径的选择定则, 还确定了上述能级的总角动量.

关键词:

Abstract

The photoionization detection method is employed to systematically study the odd-parity bound-excited states of Sm atom. Three different excitation paths are designed to carry out three-step excitation and photoionization processes for the Sm atom in the same energy region. By scanning the wavelength of third-step dye laser not only the level energies of a large number of odd-parity bound-excited states are determined, but also the information about relative intensity of the corresponding transition is obtained. Comparison of the three groups of spectra corresponding to the three paths enables us to assign the J-value, the total angular momentum of the excited states of Sm atom uniquely. In addition, a small number of level energies measured with different methods previously are also confirmed in this work.

Keywords:

作者及机构信息

1.
显示材料与光电器件教育部重点实验室, 天津 300384; 天津理工大学理学院, 天津 300384

基金项目: 国家自然科学基金(批准号: 10674102, 11174218)资助的课题.

Authors and contacts

1.
Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin 300384, China; School of Science, Tianjin University of Technology, Tianjin 300384, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 10674102, 11174218).

参考文献

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施引文献

[1]	Kondo T, Angom D, Endo I, Fukumi A, Horiguchi T, Iinuma M, Takahashi T 2003 The European Physical Journal D 25(2) 103
[2]	Xiao Y, Dai C J, Zhao H Y, Qin W J 2009 Acta Phys. Sin. 58 3071 (in Chinese) [肖颖, 戴长建, 赵洪英, 秦文杰 2009 58 3071]
[3]	Yuan W G, Dai C J, Xin S, Zhao H Y, Guan F 2008Acta Phys. Sin. 57 4076 (in Chinese) [袁卫国, 戴长建, 靳嵩, 赵洪英, 关锋 2008 57 4076]
[4]	Liu H P, Quan W, Shen L, Connerade J P, Zhan M 2007 Phys. Rev. A 76 013412
[5]	Xiao Y, Dai C J, Qin W J 2010 Chin. Phys. B 19 063202
[6]	Gomonai A I, Kudelich O I 2002 Optics and Spectroscopy 93(2)
[7]	Bushaw B A, Nortershauser W, Blaum K 2003 Spectrochimica Acta B 58 1083
[8]	Kim J T, Yi J, Rhee Y 1999 Journal of the Korean Physical Society 35 194
[9]	Olmschenk S, Hayes D, Matsukevich D N, Maunz P, Moehring D L, Younge K C, Monroe C 2009 Phys. Rev. A 80 022502
[10]	Ali R, Nadeem A, Yaseen M, Aslam M, Bhatti S A, Baig M A 1999 J. Phys. B: At. Mol. Opt. Phys. 32 4361
[11]	Qin W J, Dai C J, Xiao Y 2010 J. Quant Spectrosc Radiat Transfer, 111 63
[12]	Qin W J, Dai C J, Xiao Y 2010 J. Quant Spectrosc Radiat Transfer, 111 997
[13]	Jayasekharan T, Razvi M A N, Bhale G L 2000 J. Opt. Soc. Am. B (17) 1607
[14]	Pulhani A K, Shah M L, Dev V 2005 J. Opt. Soc. Am. B (22) 1117
[15]	Li M, Dai C J, Xie J 2010 Acta Phys. Sin. 59 228 (in Chinese) [李鸣, 戴长建, 谢军2010 59 228]
[16]	Zhao Y H, Dai C J, Ye S W 2012 Acta Phys. Sin. 61 033201 (in Chinese) [赵艳红, 戴长建, 野仕伟 2012 61 033201]
[17]	Li M, Dai C J, Xie J 2012 Acta Phys. Sin. 61 (in Chinese) [李鸣, 戴长建, 谢军 2012 61]

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