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In this paper, we present a new method to determine the first ionization limit of europium atom. Firstly, time delayed field ionization is used to detect highly excited Rydberg states of europium atom. Secondly, reversed static electric field is used to exclude ion signal from photoionization, autoionization and other path. The law of first ionization limit shift of europium atom in electric field is studied. First ionization limit in zero electric field is deduced from data of first ionization limit shift in electric field. This value is well coincident with the reported values deduced by other methods.
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Keywords:
- Eu atom /
- ionization limit /
- pulsed electric field /
- field ionization detection
[1] Smith G, Tomkins F S 1975 Proc. R. Soc. A 342 149
[2] Nakhate S G, Razvi M A N, Connerade J P, Ahmad S A 2000 J. Phys. B 33 5191
[3] Bièmont E, Quinet P, Dai Z W, Jiang Z K, Zhang Z G, Xu H L, Svanberg S 2002 J. Phys. B 35 4743
[4] Li M, Dai C J, Xie J 2011 J. Quant. Spectrosc. Radiat. Trans. 112 793
[5] Qin W J, Dai C J, Xiao Y, Zhao H Y 2009 Chin. Phys. B 18 3384
[6] Xiao Y, Dai C J, Zhao H Y, Qin WJ 2009 Acta Phys. Sin. 58 3071 (in Chinese) [肖颖, 戴长建, 赵洪英, 秦文杰 2009 58 3071]
[7] Xie J, Dai C J, Li M 2011 Chin. Opt. Lett. 9 050201
[8] Gallagher T F, Humphrey L M, Cooke WE, Hill R M, Edelstein S A 1977 Phys. Rev. A 16 1098
[9] Menèdez J M, Mart′?n I, Velasco A M 2004 Chem. Phys. Lett. 398 287
[10] Zhong J W, Fang D W, Li J, Sen Z 2000 J. Quant. Spectrosc. Radiat. Trans. 67 79
[11] Dou W D, Dai C J, Li S B 2004 J. Quant. Spectrosc. Radiat. Trans. 85 145
[12] Dai C J, Zhang S, Shu X W, Fang D W, Li J 1995 J. Quant. Spectrosc. Radiat. Trans. 53 179
[13] Martin W C, Zalubas R, Hagan L 1978 Atomic Energy Levels of the Rare Earth Elements (NSRDS-NBS Circular no 60) 185
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[1] Smith G, Tomkins F S 1975 Proc. R. Soc. A 342 149
[2] Nakhate S G, Razvi M A N, Connerade J P, Ahmad S A 2000 J. Phys. B 33 5191
[3] Bièmont E, Quinet P, Dai Z W, Jiang Z K, Zhang Z G, Xu H L, Svanberg S 2002 J. Phys. B 35 4743
[4] Li M, Dai C J, Xie J 2011 J. Quant. Spectrosc. Radiat. Trans. 112 793
[5] Qin W J, Dai C J, Xiao Y, Zhao H Y 2009 Chin. Phys. B 18 3384
[6] Xiao Y, Dai C J, Zhao H Y, Qin WJ 2009 Acta Phys. Sin. 58 3071 (in Chinese) [肖颖, 戴长建, 赵洪英, 秦文杰 2009 58 3071]
[7] Xie J, Dai C J, Li M 2011 Chin. Opt. Lett. 9 050201
[8] Gallagher T F, Humphrey L M, Cooke WE, Hill R M, Edelstein S A 1977 Phys. Rev. A 16 1098
[9] Menèdez J M, Mart′?n I, Velasco A M 2004 Chem. Phys. Lett. 398 287
[10] Zhong J W, Fang D W, Li J, Sen Z 2000 J. Quant. Spectrosc. Radiat. Trans. 67 79
[11] Dou W D, Dai C J, Li S B 2004 J. Quant. Spectrosc. Radiat. Trans. 85 145
[12] Dai C J, Zhang S, Shu X W, Fang D W, Li J 1995 J. Quant. Spectrosc. Radiat. Trans. 53 179
[13] Martin W C, Zalubas R, Hagan L 1978 Atomic Energy Levels of the Rare Earth Elements (NSRDS-NBS Circular no 60) 185
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