›› 2014, Vol. 23 ›› Issue (8): 83201-083201.doi: 10.1088/1674-1056/23/8/083201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Semi-classical explanation for the dissociation control of H2+

贾正茂, 曾志男, 李儒新, 徐至展   

  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2013-11-08 修回日期:2014-02-18 出版日期:2014-08-15 发布日期:2014-08-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 60921004, 11134010, 11222439, 11227902, and 61108012) and the National Key Basic Research Program of China (Grant No. 2011CB808103).

Semi-classical explanation for the dissociation control of H2+

Jia Zheng-Mao (贾正茂), Zeng Zhi-Nan (曾志男), Li Ru-Xin (李儒新), Xu Zhi-Zhan (徐至展)   

  1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2013-11-08 Revised:2014-02-18 Online:2014-08-15 Published:2014-08-15
  • Contact: Zeng Zhi-Nan E-mail:zhinan_zeng@mail.siom.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11127901, 60921004, 11134010, 11222439, 11227902, and 61108012) and the National Key Basic Research Program of China (Grant No. 2011CB808103).

摘要: A semi-classical model is utilized to explain the dissociation control of the hydrogen molecular ion (H2+). By analyzing the curve of the dissociation asymmetry parameter as a function of the time delay between the exciting and steering pulses, we find that the dissociation control is dependent not only on the peak intensity and direction of the electric field of the steering pulse, but also on the peak intensity of the exciting pulse.

关键词: dissociation probability, hydrogen molecular ion, terahertz pulse, time-dependent Schrö, dinger equation

Abstract: A semi-classical model is utilized to explain the dissociation control of the hydrogen molecular ion (H2+). By analyzing the curve of the dissociation asymmetry parameter as a function of the time delay between the exciting and steering pulses, we find that the dissociation control is dependent not only on the peak intensity and direction of the electric field of the steering pulse, but also on the peak intensity of the exciting pulse.

Key words: dissociation probability, hydrogen molecular ion, terahertz pulse, time-dependent Schrödinger equation

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)