The dependence of high-order harmonic generation on the laser frequency and inter-nuclear distance from multi-atom molecular ions

Yufeng Wang; Zhenrong Sun; Xiangyun Zhang; Jun Xiao; Li Deng; Weiping Zhang; Zugeng Wang; Zhinan Zeng

Chinese Optics Letters, 2006, 4 (1): 0149, Published Online: Jun. 6, 2006

The dependence of high-order harmonic generation on the laser frequency and inter-nuclear distance from multi-atom molecular ions

论文大纲

Yufeng Wang ¹Zhenrong Sun ^1,*Xiangyun Zhang ¹Jun Xiao ¹Li Deng ¹Weiping Zhang ¹Zugeng Wang ¹Zhinan Zeng ²

Author Affiliations

¹ Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062

² State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

190.4160 multiharmonic generation 320.0320 ultrafast optics 190.0190 nonlinear optics

Abstract

High-order harmonic generation from one-dimensional (1D) multi-atom molecular ions in an ultra-short laser field is theoretically investigated. The dynamics of the electron in a linearly polarized intense laser field is analyzed in terms of 1D Schrodinger equation with the Crank-Nicolson algorithm. The dependence of high-order harmonics on the laser frequency and the inter-nuclear distance is discussed. It is found that the optimum range of inter-nuclear distance should be changed to get extended harmonic generation for different laser frequency, and the lower frequency laser pulse is favorable to higher order harmonic generation as the inter-nuclear distance increases.

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Yufeng Wang, Zhenrong Sun, Xiangyun Zhang, Jun Xiao, Li Deng, Weiping Zhang, Zugeng Wang, Zhinan Zeng. The dependence of high-order harmonic generation on the laser frequency and inter-nuclear distance from multi-atom molecular ions[J]. Chinese Optics Letters, 2006, 4(1): 0149.

The dependence of high-order harmonic generation on the laser frequency and inter-nuclear distance from multi-atom molecular ions

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