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探测H_{2} 用双圆激光场进行双重电离

Zhenning Guo¹, Zhihe Zhang², Yongkai Deng¹

¹State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China.

Physical review letters

|April 19, 2024

概括

研究人员使用双圆激光场研究了分子中的强场双电离. 他们观察了与质子能量相关的电子发射角度,揭示了分子碎片化动态.

科学领域:

强场物理学的强场物理.
分子量子动力学分子量子动力学
在第二个科学时刻.

背景情况:

了解分子电离的动态对于控制化学反应至关重要.
强大的激光场可以诱导分子中复杂的电子和核运动.

研究的目的:

为了研究H2分子的动力学上完整的强场双电离.
在双圆激光场中探索电子和质子动态.
在分子碎片化过程中揭示电子核合.

主要方法:

使用双色双圆激光场设置.
采用双指针的attoclock技术来记录电子和质子的发射.
应用了一个三维分子半古典集体模型进行分析.

主要成果:

观察到相对电子发射角度的振荡与质子运动能量释放相关.
在H2分子中确定了协调的四体碎片化动态.
解了每秒相关的电子发射模式.

结论:

这项研究揭示了在分子键断裂过程中强烈的电子核合.
双圆场为探测分子内部电子和键动态提供了一条新的途径.
对超快分子动态的实验性访问得到了增强.

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