Electron and ion coincidence momentum imaging of multichannel dissociative ionization of ethanol in intense laser fields
Electron and ion coincidence momentum imaging of multichannel dissociative ionization of ethanol in intense laser fields
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强激光场中乙醇多通道解离电离的电子和离子重合动量成像
DOI：
10.1007/978-3-319-06731-5_2
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
and K. Yamanouchi
中科院分区：
文献类型：
--
作者：
R. Itakura;K. Hosaka;A. Yokoyama;T. Ikuta;F. Kannari;and K. Yamanouchi
利用光电子-光离子符合动量成像技术研究了强激光场中OH分子的多通道解离电离，分别识别了OH分子的电离和电子激发。从光电子和碎片离子之间的能量关联，我们揭示了从激光场获得的内部能量的大小取决于各自的电离和电子激发路径。结果表明，与光电子发射时刻相关的电子基态制备的材料在激光脉冲结束时比光电子发射时刻的电子激发态制备的材料获得更大的内能。
We investigate the multichannel dissociative ionization ofOH in intense laser fields by the photoelectron-photoion coincidence momentum imaging and identify separately the ionization and subsequent electronic excitation inOH. From the energy correlation between a photoelectron and a fragment ion, we reveal the amount of the internal energy gained byfrom the laser field varies depending on the respective ionization and electronic excitation pathways. It is found thatprepared in the electronic ground state associated with the moment of the photoelectron emission gains larger internal energy at the end of the laser pulse than that prepared in the electronically excited state at the moment of the photoelectron emission.