中国物理B ›› 2017, Vol. 26 ›› Issue (1): 13201-013201.doi: 10.1088/1674-1056/26/1/013201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Electron localization of H2+ in a dc electric field

Z M Jia(贾正茂), Z N Zeng(曾志男), W T Tang(唐文涛), R X Li(李儒新)   

  1. 1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2. Signal and Information Processing, Jingchu University of Technology, Jingmen 448000, China
  • 收稿日期:2016-07-20 修回日期:2016-09-27 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Z N Zeng E-mail:zhinan_zeng@mail.siom.ac.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 61521093, 11134010, 11227902, 11222439, and 11274325) and the National Basic Research Program of China (Grant No. 2011CB808103).

Electron localization of H2+ in a dc electric field

Z M Jia(贾正茂)1, Z N Zeng(曾志男)1, W T Tang(唐文涛)2, R X Li(李儒新)1   

  1. 1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    2. Signal and Information Processing, Jingchu University of Technology, Jingmen 448000, China
  • Received:2016-07-20 Revised:2016-09-27 Online:2017-01-05 Published:2017-01-05
  • Contact: Z N Zeng E-mail:zhinan_zeng@mail.siom.ac.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 61521093, 11134010, 11227902, 11222439, and 11274325) and the National Basic Research Program of China (Grant No. 2011CB808103).

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摘要：

A dc electric field is utilized to steer the electron motion after the molecular ion H2+ is excited by an ultrashort ultraviolet laser pulse. The numerical simulation shows that the electron localization distribution and the dissociation control ratio are dependent on the polarization direction and amplitude of the dc electric field. Most electrons of the dissociation state move opposite to the dc electric field and stabilize at the dressed-up potential well, for the dressed-down well is occupied by the electrons of the 1sσg state.

关键词: dissociation localization, time dependent Schrödinger equation, Coulomb potential, ultraviolet laser pulse

Abstract:

A dc electric field is utilized to steer the electron motion after the molecular ion H2+ is excited by an ultrashort ultraviolet laser pulse. The numerical simulation shows that the electron localization distribution and the dissociation control ratio are dependent on the polarization direction and amplitude of the dc electric field. Most electrons of the dissociation state move opposite to the dc electric field and stabilize at the dressed-up potential well, for the dressed-down well is occupied by the electrons of the 1sσg state.

Key words: dissociation localization, time dependent Schrö, dinger equation, Coulomb potential, ultraviolet laser pulse

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

  • 32.80.Rm
33.80.Rv (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)) 42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)