Dynamic stabilization of Na atom in an intense pulsed laser field

doi:10.1088/1674-1056/27/4/043201

中国物理B ›› 2018, Vol. 27 ›› Issue (4): 43201-043201.doi: 10.1088/1674-1056/27/4/043201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Dynamic stabilization of Na atom in an intense pulsed laser field

Xiao-Li Guo(郭晓丽), Song-Feng Zhao(赵松峰), Guo-Li Wang(王国利), Xiao-Xin Zhou(周效信)

Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China

收稿日期:2017-12-11 修回日期:2018-01-03 出版日期:2018-04-05 发布日期:2018-04-05
通讯作者: Song-Feng Zhao, Xiao-Xin Zhou E-mail:zhaosf@nwnu.edu.cn;zhouxx@nwnu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11465016, 11664035, and 11764038).

Dynamic stabilization of Na atom in an intense pulsed laser field

Xiao-Li Guo(郭晓丽), Song-Feng Zhao(赵松峰), Guo-Li Wang(王国利), Xiao-Xin Zhou(周效信)

Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China

Received:2017-12-11 Revised:2018-01-03 Online:2018-04-05 Published:2018-04-05
Contact: Song-Feng Zhao, Xiao-Xin Zhou E-mail:zhaosf@nwnu.edu.cn;zhouxx@nwnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11465016, 11664035, and 11764038).

摘要/Abstract

摘要： We investigate theoretically the ionization properties of the valence electron for the alkali metal atom Na in an intense pulsed laser field by solving numerically the time-dependent Schrödinger equation with an accurate l-dependent model potential. By calculating the variations of the ionization probabilities with laser peak intensity for wavelengths ranging from 200 nm to 600 nm, our results present a dynamic stabilization trend for the Na atom initially in its ground state (3s) and the excited states (3p and 4s) exposed to an intense pulsed laser field. Especially a clear “window” of dynamic stabilization at lower laser intensities and longer wavelengths for the initial state 4s (the second excited state) is found. By analyzing the time-dependent population distributions of the valence electron in the bound states with the different values of principal quantum number n and orbital quantum number l, we can attribute the dynamic stabilization to the periodic population in the low-excited states since the valence electron oscillates rapidly between the lowly excited states and the continuum states.

关键词: accurate model potential, atomic dynamic stabilization, ionization probability

Abstract: We investigate theoretically the ionization properties of the valence electron for the alkali metal atom Na in an intense pulsed laser field by solving numerically the time-dependent Schrödinger equation with an accurate l-dependent model potential. By calculating the variations of the ionization probabilities with laser peak intensity for wavelengths ranging from 200 nm to 600 nm, our results present a dynamic stabilization trend for the Na atom initially in its ground state (3s) and the excited states (3p and 4s) exposed to an intense pulsed laser field. Especially a clear “window” of dynamic stabilization at lower laser intensities and longer wavelengths for the initial state 4s (the second excited state) is found. By analyzing the time-dependent population distributions of the valence electron in the bound states with the different values of principal quantum number n and orbital quantum number l, we can attribute the dynamic stabilization to the periodic population in the low-excited states since the valence electron oscillates rapidly between the lowly excited states and the continuum states.

Key words: accurate model potential, atomic dynamic stabilization, ionization probability

中图分类号: (Multiphoton ionization and excitation to highly excited states)

32.80.Rm

42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

郭晓丽, 赵松峰, 王国利, 周效信. Dynamic stabilization of Na atom in an intense pulsed laser field[J]. 中国物理B, 2018, 27(4): 43201-043201.

Xiao-Li Guo(郭晓丽), Song-Feng Zhao(赵松峰), Guo-Li Wang(王国利), Xiao-Xin Zhou(周效信). Dynamic stabilization of Na atom in an intense pulsed laser field[J]. Chin. Phys. B, 2018, 27(4): 43201-043201.

参考文献 25

[1]	Tian Y Y, Li S Y, Wei S S, Guo F M, Zeng S L, Chen J G and Yang Y J 2014 Chin. Phys. B 23 053202
[2]	Liu M, Guo Y C and Wang B B 2015 Chin. Phys. B 24 073201
[3]	Tu X H, Hao X L, Li W D, Hu S L and Chen J 2016 Chin. Phys. Lett. 33 093201
[4]	Fedorov M V and Movsesian A M 1988 J. Phys. B:At. Mol. Opt. Phys. 21 L155
[5]	Pont M and Gavrila M 1990 Phys. Rev. Lett. 65 2362
[6]	Gavrila M 1992 Atoms in Intense Laser Fields, ed. M Gavrila (New York:Academic) p. 435
[7]	Su Q, Eberly J H and Javanainen J 1990 Phys. Rev. Lett. 64 862
[8]	Vivirito R M A and Knight P L 1995 J. Phys. B:At. Mol. Opt. Phys. 28 4357
[9]	Zhou X X, Li B W and Lin C D 2001 Phys. Rev. A 64 043403
[10]	Protopapas M, Lappas D G and Knight P L 1997 Phys. Rev. Lett. 79 4550
[11]	Horbatsch M 1991 Phys. Rev. A 44 R5346
[12]	Tang X and Basile S 1991 Phys. Rev. A 44 R1454
[13]	Volkova E A, Popov A M and Tikhonova O V 2001 JETP 93 1155
[14]	Dondera M, Muller H G and Gavrila M 2002 Phys. Rev. A 65 031405
[15]	Latinne O, Joachain C J and Dörr M 1994 Europhys. Lett. 26 333
[16]	Kylstra N J, Worthington R A, Patel A, Knight P L, Vázquez de Aldana J R and Roso L 2000 Phys. Rev. Lett. 85 1835
[17]	Simonsen A S and Forre M 2015 Phys. Rev. A 92 013405
[18]	Delone N B and Krainov V P 1995 Phys. Usp. 38 1247
[19]	Gavrila M 2002 J. Phys. B:At. Mol. Opt. Phys. 35 R147
[20]	Popov A M, Tikhonova O V and Volkova E A 2003 J. Phys. B:At. Mol. Opt. Phys. 36 R125
[21]	de Boer M P, Hoogenraad J H, Vrijen R B, Noordam L D and Muller H G 1993 Phys. Rev. Lett. 71 3263
[22]	Chu X, Chu S I and Laughlin C 2001 Phys. Rev. A 64 013406
[23]	Tong X M and Chu S I 1997 Chem. Phys. 217 119
[24]	Zhao S F, Zhou X X, Li P C and Chen Z 2008 Phys. Rev. A 78 063404
[25]	Chen Z, Morishita T, Le A T, Wickenhauser M, Tong X T and Lin C D 2006 Phys. Rev. A 74 053405

Dynamic stabilization of Na atom in an intense pulsed laser field

Dynamic stabilization of Na atom in an intense pulsed laser field

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