Acta Optica Sinica, Volume. 20, Issue 4, 440(2000)
Even Harmonic and Semi-Integer Harmonic Generation
By numerically integrating the one-dimensional time-dependent Shrodinger equation, the high-order harmonic generation (HHG) spectrum of a model atom irradiated by two-color coherent fields with frequency ω and 1.5ω is calculated respectively. It is found that there exist odd harmonics, even harmonics and semi-integer harmonics due to the coherent interaction between two colors. The origin of these harmonics and main factors influencing the harmonic efficiency are discussed in detail.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese]. Even Harmonic and Semi-Integer Harmonic Generation[J]. Acta Optica Sinica, 2000, 20(4): 440