中国物理B ›› 2018, Vol. 27 ›› Issue (10): 104203-104203.doi: 10.1088/1674-1056/27/10/104203

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Tunneling exits of H2+ in strong laser fields

Zhao-Han Zhang(张兆涵), Feng He(何峰)   

  1. 1 Key Laboratory for Laser Plasmas(Ministry of Education) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
    2 Collaborative Innovation Center of IFSA(CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
  • 收稿日期:2018-04-11 修回日期:2018-05-28 出版日期:2018-10-05 发布日期:2018-10-05
  • 通讯作者: Feng He E-mail:fhe@sjtu.edu.cn
  • 基金资助:

    Project supported by National Natural Science Foundation of China (Grant Nos. 11574205, 11327902, and 11421064), the Innovation Program of Shanghai Municipal Education Commission (Grant No. 2017-01-07-00-02-E00034).

Tunneling exits of H2+ in strong laser fields

Zhao-Han Zhang(张兆涵)1, Feng He(何峰)1,2   

  1. 1 Key Laboratory for Laser Plasmas(Ministry of Education) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
    2 Collaborative Innovation Center of IFSA(CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2018-04-11 Revised:2018-05-28 Online:2018-10-05 Published:2018-10-05
  • Contact: Feng He E-mail:fhe@sjtu.edu.cn
  • Supported by:

    Project supported by National Natural Science Foundation of China (Grant Nos. 11574205, 11327902, and 11421064), the Innovation Program of Shanghai Municipal Education Commission (Grant No. 2017-01-07-00-02-E00034).

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摘要：

Different from atoms, the multicenter of the Coulombic potentials in molecules makes the tunneling ionization complex, and the electron tunnels out the laser-dressed Coulomb potential with a complex structure. We study tunneling exits of H2+ at large internuclear distance in strong laser fields by numerically simulating the time-dependent Schrödinger equation plus a classical backward propagation of the ionized wave packet. This study strengthens the understanding of molecular tunneling ionization in strong laser fields.

关键词: ultrafast, tunneling, laser, hydrogen molecular ion

Abstract:

Different from atoms, the multicenter of the Coulombic potentials in molecules makes the tunneling ionization complex, and the electron tunnels out the laser-dressed Coulomb potential with a complex structure. We study tunneling exits of H2+ at large internuclear distance in strong laser fields by numerically simulating the time-dependent Schrödinger equation plus a classical backward propagation of the ionized wave packet. This study strengthens the understanding of molecular tunneling ionization in strong laser fields.

Key words: ultrafast, tunneling, laser, hydrogen molecular ion

中图分类号:  (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

  • 42.50.Hz
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 82.30.Lp (Decomposition reactions (pyrolysis, dissociation, and fragmentation))