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啁啾激光场中氢分子离子电离过程的理论研究 被引量：3

Theoretical investigation of ionization process for H_2^+ in chirped laser field
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摘要 本文在非玻恩-奥本海默(Non Born-Oppenheimer)近似条件下,通过数值求解一维含时薛定谔方程,探究了氢分子离子体系在超短啁啾激光条件下的电离过程.数值结果表明:有效选取啁啾参数可显著增强氢分子离子的电离过程,并且激光强度越大,电离过程对啁啾参数越敏感.结合不同强度下平均核间距及电子波包密度随时间的变化,分别从核与电子运动的角度,有效的解释了啁啾脉冲对氢分子离子电离过程的影响. The ionization process for H2＋ in chirped laser field has been theoretically investigated by numerically solving the one-dimensional （1D） time-dependent Schr（o）dinger equation （TDSE） in non BornOppenheimer approximation.The numerical results interpret that the ionization process can be enhanced prominently with appropriate chirp parameter; moreover,it will be more sensitive to the chirp parameter with increasing intensity.Through the average nuclear distance and the distribution of electronic wave packet density,the effects of the chirped laser pulse on ionization process have been explained effectively based on the nuclear motion and electronic motion.
作者 张彩萍 苗向阳
机构地区 山西师范大学物理与信息工程学院
出处 《原子与分子物理学报》 CAS CSCD 北大核心 2014年第2期274-278,共5页 Journal of Atomic and Molecular Physics
基金 国家自然科学基金(11047191) 教育部科技研究重点项目(211025) 教育部高等学校博士学科点专项科研基金(新教师类)(20111404120004) 山西省青年科技研究基金(2009021005)
关键词 电离 非玻恩-奥本海默近似 啁啾脉冲 Ionization Non Born-Oppenheimer approximation Chirped laser pulse
分类号 O561.4 [理学—原子与分子物理]
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共引文献14

同被引文献16

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原子与分子物理学报
2014年 第2期

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