双原子模型体系拓展相干辐射的研究

EXTENSION OF THE COHERENT RADIATION BY A DOUBLE - ATOM MODEL SYSTEM

在分析单原子产生高次谐波机制的基础上,给出了扩展谐波平台的新方案:通过采用联合两原子模型代替单原子,在合适的原子核间距,谐波谱的最大截止位置从Ip+3．2Up延展到Ip+8．5Up,且该谐波谱呈现了复杂的多平台结构,进而,分析了这个复杂结构产生的原因．

Based on the analysis of single - atom high order harmonic spectra, we propose a scheme to realize the extension of the plateau width. Specifically, by employing a united two - atom model, the harmonic plateau is widened from Ip +3. 2Up in the single - atom case up to Ip +8. 5Up in the united - atom case( at a suitable inter - nuclear separation) , and takes on the complex multi - plateau structure. Furthermore, analysis is given on the generation mechanism of these plateaus both qualitatively and quantitatively.