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题名: Dissociation and Ionization of Quasi-Periodically Vibrating H-2(+) in Intense Few-Cycle Mid-Infrared Laser Fields
作者: Jiang, Shicheng1;  Yu, Chao1;  Yuan, Guanglu1;  Wu, Tong1;  Lu, Ruifeng1, 2
刊名: SCIENTIFIC REPORTS
发表日期: 2017-02-06
DOI: 10.1038/srep42086
卷: 7
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: Using quantum mechanics calculations, we theoretically study the dissociation and ionization dynamics of the hydrogen-molecule ion in strong laser fields. Having prepared the nuclear wave packet of H-2(+) in a specific vibrational state, a pump laser is used to produce a vibrational excitation, leading to quasi-periodical vibration without ionization. Then, a time-delayed few-cycle laser is applied to trigger the dissociation or ionization of H-2(+). Both the time delay and the intensity of the probe laser alter the competition between dissociation and ionization. We also explore the dependence of kinetic-energy release spectra of fragments on the time delay, showing that the channels of above-threshold dissociation and below-threshold dissociation are opened and closed periodically. Also, dissociation from different channels is influenced by nuclear motion. The dissociation mechanism has been described in detail using the Floquet picture. This work provides a useful method for steering the electronic and nuclear dynamics of diatomic molecules in intense laser fields.
关键词[WOS]: RESONANCE-ENHANCED IONIZATION ;  DIATOMIC MOLECULAR-IONS ;  COULOMB EXPLOSION ;  MULTIPHOTON IONIZATION ;  HARMONIC-GENERATION ;  PULSES ;  DYNAMICS ;  WAVEPACKET ;  MODEL
语种: 英语
WOS记录号: WOS:000393438500001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/151898
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

Recommended Citation:
Jiang, Shicheng,Yu, Chao,Yuan, Guanglu,et al. Dissociation and Ionization of Quasi-Periodically Vibrating H-2(+) in Intense Few-Cycle Mid-Infrared Laser Fields[J]. SCIENTIFIC REPORTS,2017,7.
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