中国物理B ›› 2013, Vol. 22 ›› Issue (2): 23204-023204.doi: 10.1088/1674-1056/22/2/023204

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Atomic high-order harmonic generation from a circularly polarized laser pulse

郭福明a, 陈高b, 陈基根c, 李苏宇a, 杨玉军a   

  1. a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
    b School of Science, Changchun University of Science and Technology, Changchun 130022, China;
    c Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China
  • 收稿日期:2012-09-14 修回日期:2012-11-17 出版日期:2013-01-01 发布日期:2013-01-01
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2013CB922200); the National Natural Science Foundation of China (Grant Nos. 11274141 and 11034003); and the Natural Science Foundation of Zhejiang Province of China (Grant No. Y6110578).

Atomic high-order harmonic generation from a circularly polarized laser pulse

Guo Fu-Ming (郭福明)a, Chen Gao (陈高)b, Chen Ji-Gen (陈基根)c, Li Su-Yu (李苏宇)a, Yang Yu-Jun (杨玉军)a   

  1. a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
    b School of Science, Changchun University of Science and Technology, Changchun 130022, China;
    c Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China
  • Received:2012-09-14 Revised:2012-11-17 Online:2013-01-01 Published:2013-01-01
  • Contact: Yang Yu-Jun E-mail:yangyj@jlu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2013CB922200); the National Natural Science Foundation of China (Grant Nos. 11274141 and 11034003); and the Natural Science Foundation of Zhejiang Province of China (Grant No. Y6110578).

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摘要： We demonstrate theoretically that the high-order harmonic of atom can be generated by a circularly polarized laser pulse. The harmonic spectrum shows a clear cutoff with an energy Ip+2Up. Especially, the high-order harmonic generation comes from the multiple recombination of the ionized electron with non-zero initial velocity. These results are verified by the classical model theory and the time-frequency analysis of harmonic spectrum.

关键词: high-order harmonic generation, circularly polarized intense laser

Abstract: We demonstrate theoretically that the high-order harmonic of atom can be generated by a circularly polarized laser pulse. The harmonic spectrum shows a clear cutoff with an energy Ip+2Up. Especially, the high-order harmonic generation comes from the multiple recombination of the ionized electron with non-zero initial velocity. These results are verified by the classical model theory and the time-frequency analysis of harmonic spectrum.

Key words: high-order harmonic generation, circularly polarized intense laser

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

  • 32.80.Rm
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)