中国物理B ›› 2014, Vol. 23 ›› Issue (3): 33202-033202.doi: 10.1088/1674-1056/23/3/033202

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Role of excited states in the elliptically polarized harmonic generation

杜洪川, 文一震, 王小山, 胡碧涛   

  1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 收稿日期:2013-06-16 修回日期:2013-09-02 出版日期:2014-03-15 发布日期:2014-03-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91026021, 11075068, 10875054, 11175076, and 10975065) and the Fundamental Research Funds of the Central Universities of China (Grant No. lzujbky-2010-k08).

Role of excited states in the elliptically polarized harmonic generation

Du Hong-Chuan (杜洪川), Wen Yi-Zhen (文一震), Wang Xiao-Shan (王小山), Hu Bi-Tao (胡碧涛)   

  1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • Received:2013-06-16 Revised:2013-09-02 Online:2014-03-15 Published:2014-03-15
  • Contact: Hu Bi-Tao E-mail:hubt@lzu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 91026021, 11075068, 10875054, 11175076, and 10975065) and the Fundamental Research Funds of the Central Universities of China (Grant No. lzujbky-2010-k08).

摘要: We theoretically investigate the contribution of the excited state to the ellipticity of the harmonics from H2+ at different orientation angles irradiated by a linearly polarized laser pulse. It is found that the first excited state has a significant influence to the ellipticity of the harmonics, and the contribution of higher excited states to the ellipticity can be neglected. Moreover, the conclusion is not dependent on the laser intensity.

关键词: high-order harmonic generation, intense laser, excited state, ellipticity

Abstract: We theoretically investigate the contribution of the excited state to the ellipticity of the harmonics from H2+ at different orientation angles irradiated by a linearly polarized laser pulse. It is found that the first excited state has a significant influence to the ellipticity of the harmonics, and the contribution of higher excited states to the ellipticity can be neglected. Moreover, the conclusion is not dependent on the laser intensity.

Key words: high-order harmonic generation, intense laser, excited state, ellipticity

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

  • 32.80.Rm
42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)