中国物理B ›› 2005, Vol. 14 ›› Issue (3): 524-528.doi: 10.1088/1009-1963/14/3/016

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Optical—optical double-resonant multiphoton ionization spectra of Rydberg states of nitrogen dioxide

张贵银, 张连水, 孙博, 韩小峰, 于威   

  1. College of Physics Science and Technology, Hebei University, Baoding 071002, China
  • 收稿日期:2003-12-22 修回日期:2004-11-29 出版日期:2005-03-02 发布日期:2005-03-02
  • 基金资助:
    Project supported by the Natural Science Foundation of Hebei Province, China (Grant No 102090).

Optical—optical double-resonant multiphoton ionization spectra of Rydberg states of nitrogen dioxide

Zhang Gui-Yin (张贵银), Zhang Lian-Shui (张连水), Sun Bo (孙博), Han Xiao-Feng (韩小峰), Yu Wei (于威)   

  1. College of Physics Science and Technology, Hebei University, Baoding 071002, China
  • Received:2003-12-22 Revised:2004-11-29 Online:2005-03-02 Published:2005-03-02
  • Supported by:
    Project supported by the Natural Science Foundation of Hebei Province, China (Grant No 102090).

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摘要： The optical—optical double-resonant multiphoton ionization (OODR-MPI) technique has been applied to the study of the Rydberg states of nitrogen dioxide. The results show that, although the OODR-MPI spectra of NO2 are composed of regular progression bands at different pump laser intensities, their ionization pathways are different. The NO2 molecule is ionized through the (3+1+1) double-resonant process as the pump laser intensity is in a high value, or else it is through the (1+2+1) process. The final resonant states in the two ionizing processes have been attributed to different Rydberg states.

Abstract: The optical—optical double-resonant multiphoton ionization (OODR-MPI) technique has been applied to the study of the Rydberg states of nitrogen dioxide. The results show that, although the OODR-MPI spectra of NO2 are composed of regular progression bands at different pump laser intensities, their ionization pathways are different. The NO2 molecule is ionized through the (3+1+1) double-resonant process as the pump laser intensity is in a high value, or else it is through the (1+2+1) process. The final resonant states in the two ionizing processes have been attributed to different Rydberg states.

Key words: OODR-MPI, nitrogen dioxide, Rydberg states

中图分类号:  (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))

  • 33.80.Rv
33.80.Eh (Autoionization, photoionization, and photodetachment)