| Title | Enhancing Strong-Field Dissociation of H2+in Helium Nanodroplets |
| Authors | Zhou, Lianrong Hu, Xiaoqing Peng, Yigeng Qiang, Junjie Lu, Peifen Lin, Kang Pan, Shengzhe Gong, Xiaochun Jiang, Wenyu Jiang, Zhejun Lu, Chenxu Ni, Hongcheng Jin, Cheng Lu, Ruifeng Wu, Yong Wang, Jianguo Wu, Jian |
| Affiliation | East China Normal Univ, State Key Lab Precis Spect, Shanghai 200241, Peoples R China Inst Appl Phys & Computat Math, Key Lab Computat Phys, Beijing 100088, Peoples R China Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Peoples R China Goethe Univ Frankfurt Main, Inst Kernphys, D-60438 Frankfurt, Germany Peking Univ, Ctr Appl Phys & Technol, HEDPS, Beijing 10084, Peoples R China Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China East China Normal Univ, Chongqing Key Lab Precis Opt, Chongqing Inst, Chongqing 401121, Peoples R China |
| Keywords | POTENTIAL-ENERGY SURFACE SPECTROSCOPY DYNAMICS MOLECULES CLUSTERS |
| Issue Date | 20-Jan-2023 |
| Publisher | PHYSICAL REVIEW LETTERS |
| Abstract | We investigate the above-threshold multiphoton ionization of H2 embedded in superfluid He nanodroplets driven by ultraviolet femtosecond laser pulses. We find that the surrounding He atoms enhance the dissociation of in-droplet HH2 from lower vibrational states as compared to that of isolated gas-phase molecules. As a result, the discrete peaks in the photoelectron energy spectrum correlated with the HHeH from the dissociative in-droplet molecule shift to higher energies. Based on the electron-nuclear correlation, the photoelectrons with higher energies are correlated to the nuclei of the low-vibrationally excited molecular ion as the nuclei share less photon energy. Our time-dependent nuclear wave packet quantum simulation using a simplified He-HH2 system confirms the joint contribution of the driving laser field and the neighboring He atoms to the dissociation dynamics of the solute molecular ion. The results strengthen our understanding of the role of the environment on light-induced ultrafast dynamics of molecules. |
| URI | http://hdl.handle.net/20.500.11897/672863 |
| ISSN | 0031-9007 |
| DOI | 10.1103/PhysRevLett.130.033201 |
| Indexed | SCI(E) |
| Appears in Collections: | 工学院 |
