| ATOMIC AND MOLECULAR PHYSICS |
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Ionic Angular Distributions Induced by Strong-Field Ionization of Tri-Atomic Molecules |
| Tian Sun, Shi-Wen Zhang, Rui Wang, Shuang Feng, Yang Liu, Hang Lv**, Hai-Feng Xu |
Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012
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| Cite this article: |
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Tian Sun, Shi-Wen Zhang, Rui Wang et al 2020 Chin. Phys. Lett. 37 043301 |
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Abstract Angular distributions of fragment ions from ionization of several tri-atomic molecules (CO$_{2}$, OCS, N$_{2}$O and NO$_{2}$) by strong 800-nm laser fields are investigated via a time-of-flight mass spectrometer. Anisotropic angular distributions of fragment ions, especially those of atomic ions, are observed for all of the molecules studied. These anisotropic angular distributions are mainly due to the geometric alignment of molecules in the strong field ionization. Distinct different patterns in ionic angular distributions for different molecules are observed. It is indicated that both molecular geometric structure and ionization channels have effects on the angular distributions of strong field ionization/fragmentation.
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Received: 19 December 2019
Published: 24 March 2020
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| PACS: |
33.80.Rv
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(Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))
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| Fund: Supported by the National Natural Science Foundation of China (Grant Nos. 11534004, 11874179, and 11704149), and the Natural Science Foundation of Jilin Province (Grant Nos. 20180101289JC and 20190103045JH). |
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