| Autor: |
Lam, Huynh Van Sa, Venkatachalam, Anbu Selvam, Bhattacharyya, Surjendu, Chen, Keyu, Borne, Kurtis, Wang, Enliang, Boll, Rebecca, Jahnke, Till, Kumarappan, Vinod, Rudenko, Artem, Rolles, Daniel |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Lett. 132, 123201 (2024) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.132.123201 |
| Popis: |
Coulomb explosion imaging (CEI) with x-ray free electron lasers has recently been shown to be a powerful method for obtaining detailed structural information of gas-phase planar ring molecules [R. Boll et al. Nat. Phys. 18, 423-428 (2022)]. In this Letter, we investigate the potential of CEI driven by a tabletop laser and extend this approach to differentiating three-dimensional (3D) structures. We study the static CEI patterns of planar and nonplanar organic molecules that resemble the structures of typical products formed in ring-opening reactions. Our results reveal that each molecule exhibits a well-localized and distinctive pattern in 3D fragment-ion momentum space. We find that these patterns yield direct information about the molecular structures and can be qualitatively reproduced using a classical Coulomb explosion simulation. Our findings suggest that laser-induced CEI can serve as a robust method for differentiating molecular structures of organic ring and chain molecules. As such, it holds great promise as a method for following ultrafast structural changes, e.g., during ring-opening reactions, by tracking the motion of individual atoms in pump-probe experiments. |
| Databáze: |
arXiv |
| Externí odkaz: |
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