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Coherent control of fragmentation of methyl iodide by shaped femtosecond pulse train |
| Qiu-Nan Tong(佟秋男)1,2, De-Hou Fei(费德厚)1,2, Zhen-Zhong Lian(廉振中)1,2, Hong-Xia Qi(齐洪霞)1,2, Sheng-Peng Zhou(周胜鹏)1, Si-Zuo Luo(罗嗣佐)1, Zhou Chen(陈洲)1,2, Zhan Hu(胡湛)1,2 |
1 Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
2 Advanced Light Field and Modern Medical Treatment Science and Technology Innovation Center of Jilin Province, Jilin University, Changchun 130012, China |
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Abstract Coherent control of fragmentation of CH3I using shaped femtosecond pulse train is investigated. The dissociation processes can be modulated by changing the separation of the shaped pulse train, and the yield of I+ under the irradiation of the optimal pulse is significantly increased compared with that using the transform-limited pulse. We discuss the control mechanism of dissociation processes with coherent interference in time domain. A three-pulse control model is proposed to explain the counterintuitive experimental results.
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Received: 30 April 2019
Revised: 25 June 2019
Accepted manuscript online:
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PACS:
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32.80.Rm
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(Multiphoton ionization and excitation to highly excited states)
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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11374124). |
Corresponding Authors:
Zhou Chen, Zhou Chen
E-mail: phy_cz@jlu.edu.cn;huzhan@jlu.edu.cn
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Cite this article:
Qiu-Nan Tong(佟秋男), De-Hou Fei(费德厚), Zhen-Zhong Lian(廉振中), Hong-Xia Qi(齐洪霞), Sheng-Peng Zhou(周胜鹏), Si-Zuo Luo(罗嗣佐), Zhou Chen(陈洲), Zhan Hu(胡湛) Coherent control of fragmentation of methyl iodide by shaped femtosecond pulse train 2019 Chin. Phys. B 28 093201
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