Excitation-energy resolved fluorescence spectra of hydrogen molecules in the regime of singly excited molecular states

29th International Conference on Photonic, Electronic, and Atomic Collisions

Schmidt, Philipp^1 ; Hans, Andreas^1 ; Ozga, Christian^1 ; Reiß, Philipp^1 ; Ltaief, Ltaief Ben^1 ; Hosaka, Kouichi^1 ; Kitajima, Masashi^2 ; Kouchi, Noriyuki^2 ; Knie, André^1 ; Ehresmann, Arno^1

Institut für Physik, CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, Kassel

34132, Germany^1

Department of Chemistry, Tokyo Institute of Technology, Meguro-ku, Tokyo

152, Japan^2

关键词: Diffraction bands;    Emission spectrums;    Excited electronic state;    Gaseous hydrogen;    Hydrogen molecule;    Ionization thresholds;    Molecular effect;    Resolved fluorescence;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/11/112130/pdf
DOI  :  10.1088/1742-6596/635/11/112130

来源: IOP

【 摘 要 】

We have measured the emission spectrum of gaseous hydrogen molecules in the far ultraviolet spectral range over the large interval of excitation energies between 11 eV and 17 eV. This regime is governed by singly excited electronic states below the ionization threshold. While these features have been already investigated separately in the past, the completeness of the present measurements allows a very intuitive representation of the participating molecular effects and their respective correlations. It also contains the first complete investigation of the Condon diffraction bands visible for hydrogen through transitions into the ground state continuum.