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Strong-Field-Induced Coulomb Explosion Imaging of Tribromomethane
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2022-06-21 , DOI: 10.1021/acs.jpclett.2c01007 Surjendu Bhattacharyya 1 , Kurtis Borne 1 , Farzaneh Ziaee 1 , Shashank Pathak 1 , Enliang Wang 1 , Anbu Selvam Venkatachalam 1 , Xiang Li 1 , Nathan Marshall 1 , Kevin D Carnes 1 , Charles W Fehrenbach 1 , Travis Severt 1 , Itzik Ben-Itzhak 1 , Artem Rudenko 1 , Daniel Rolles 1
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2022-06-21 , DOI: 10.1021/acs.jpclett.2c01007 Surjendu Bhattacharyya 1 , Kurtis Borne 1 , Farzaneh Ziaee 1 , Shashank Pathak 1 , Enliang Wang 1 , Anbu Selvam Venkatachalam 1 , Xiang Li 1 , Nathan Marshall 1 , Kevin D Carnes 1 , Charles W Fehrenbach 1 , Travis Severt 1 , Itzik Ben-Itzhak 1 , Artem Rudenko 1 , Daniel Rolles 1
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The Coulomb explosion of tribromomethane (bromoform, CHBr3) induced by 28 fs near-infrared laser pulses is investigated by three-dimensional coincidence ion momentum imaging. We focus on the fragmentation into three, four, and five ionic fragments measured in coincidence and present different ways of visualizing the three-dimensional momentum correlations. We show that the experimentally observed momentum correlations for 4- and 5-fold coincidences are well reproduced by classical Coulomb explosion simulations and contain information about the structure of the parent molecule that could be used to differentiate structural isomers formed, for example, in a pump–probe experiment. Our results thus provide a clear path toward visualizing structural dynamics in polyatomic molecules by strong-field-induced Coulomb explosion imaging.
中文翻译：
三溴甲烷的强场诱导库仑爆炸成像
三溴甲烷（溴仿，CHBr 3）的库仑爆炸）通过三维重合离子动量成像研究了由 28 fs 近红外激光脉冲引起的现象。我们重点关注同时测量的三个、四个和五个离子碎片的碎片，并提出可视化三维动量相关性的不同方法。我们表明，通过经典库仑爆炸模拟可以很好地再现实验观察到的 4 倍和 5 倍重合的动量相关性，并且包含有关母体分子结构的信息，可用于区分形成的结构异构体，例如在泵中——探测实验。因此，我们的结果为通过强场诱导库仑爆炸成像可视化多原子分子的结构动力学提供了一条清晰的途径。
更新日期：2022-06-21
中文翻译：
三溴甲烷的强场诱导库仑爆炸成像
三溴甲烷（溴仿，CHBr 3）的库仑爆炸）通过三维重合离子动量成像研究了由 28 fs 近红外激光脉冲引起的现象。我们重点关注同时测量的三个、四个和五个离子碎片的碎片，并提出可视化三维动量相关性的不同方法。我们表明，通过经典库仑爆炸模拟可以很好地再现实验观察到的 4 倍和 5 倍重合的动量相关性，并且包含有关母体分子结构的信息，可用于区分形成的结构异构体，例如在泵中——探测实验。因此，我们的结果为通过强场诱导库仑爆炸成像可视化多原子分子的结构动力学提供了一条清晰的途径。
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