| 有选择地提高联合双原子高次谐波发射效率的一种方法 |
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| 引用本文： | 刘俊星,张建新.有选择地提高联合双原子高次谐波发射效率的一种方法[J].嘉兴学院学报,2009,21(3):47-50. |
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| 作者姓名： | 刘俊星 张建新 |
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| 作者单位： | 嘉兴学院机电工程学院,浙江嘉兴,314001 |
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| 摘 要： | 利用经典的SMT理论分析了一维普薛耳-特勒势（PT势）模型原子在激光场作用下的动力学行为，优化了联合双原子模型；并用特殊设计的双色激光场辐照该模型，采用Crank—Nicholson方法求解其原子的含时Schroedinger方程，得到了它的高次谐波发射谱．该谱表明，可以将截止位置为Ip＋8Up的高谐波发射效率提高到10^-9．
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| 关 键 词： | SMT理论 联合双原子 双色场 高次谐波 |
A Method for Selectively Enhancing the Efficiency of the High-order Harmonic Generation of a Joint Atoms Model |
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| LIU Jun-xing,ZHANG Jian-xin.A Method for Selectively Enhancing the Efficiency of the High-order Harmonic Generation of a Joint Atoms Model[J].Journal of Jiaxing College,2009,21(3):47-50. |
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| Authors: | LIU Jun-xing ZHANG Jian-xin |
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| Institution: | LIU Jun--xing, ZHANG Jian--xin (School of Mechanical ＆ Electrical Engineering, Jiaxing University, Jiaxing Zhejiang 314001) |
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| Abstract: | The dynamic behavior of a PT potential model atom exposed to laser fields has been carefully analyzed by employing the classical SMT theory. The joint atom system is optimized and exposed to the specially designed two--color field. The time dependent Schr dinger equation is numerically solved by Crank Nicholson method. We present a high--order harmonic generation （HHG） spectrum from the united atom system exposed to the laser pulses mentioned above, and the spectrum shows that the emission efficiencies of the harmonics near the cutoff （Ip ＋8Up） are especially enhanced to 10^-9. |
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| Keywords: | SMT theory joint two-- atom two-- color field high-- order harmonic generation |
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