自然杂志 >

2022 , Vol. 44 >Issue 6: 422 - 431

DOI: https://doi.org/10.3969/j.issn.0253-9608.2022.06.002

特约专稿

分子阿秒超快动力学精密测量与调控

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  • 华东师范大学 精密光谱科学与技术国家重点实验室，上海 200062

收稿日期: 2022-05-14

  网络出版日期: 2022-12-19

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Probe and control of attosecond ultrafast dynamics in molecules

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  • State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China

Received date: 2022-05-14

  Online published: 2022-12-19

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摘要

少周期飞秒脉冲激光和桌面化极紫外阿秒光源的发展为在原子分子层面探究电子和原子核超快运动提供了飞秒到阿秒时间尺度的探测标尺。围绕双光子干涉阿秒拍频重构技术、阿秒条纹相机技术、阿秒钟技术以及阿秒瞬态吸收光谱技术等不同的阿秒测量谱学方法，主要梳理了飞秒和阿秒光脉冲在分子电离解离超快精密测控领域的最新进展，探讨了分子化学键断裂重组过程中的电子跃迁、电荷转移、电子-电子关联、电子-原子核振转耦合等超快动力学行为。

关键词： 阿秒测量谱学; 分子阿秒超快动力学; 电子离子符合测量

本文引用格式

左子潭, 姜雯昱, 徐一丹, 童继红, 韩露露, 许理明, 宫晓春, 吴健 . 分子阿秒超快动力学精密测量与调控[J]. 自然杂志, 2022 , 44(6) : 422 -431 . DOI: 10.3969/j.issn.0253-9608.2022.06.002

Abstract

The advanced technique of few-cycle femtosecond laser pulse and table-top extreme ultraviolet attosecond pulse provides an opportunity to investigate real-time dynamics of electrons and nucleuses in atoms or molecules from femtosecond to attosecond time scale. Based on the fundamental attosecond metrologies of reconstruction of attosecond beating by interference of two-photon transition, attosecond streaking camera, attoclock and attosecond transient absorption spectroscopy, we summarize the latest progress
upon the ultrafast photoionization and dissociation process in molecules including the ultrafast dynamics of electron transition, charge
transfer, electronic correlation effect and electron-nucleivibronic coupling.

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