Photon-excitation photon-emission maps (PhexPhem maps) with rovibronic resolution as a data base for theory and astrophysics part I: method and first results for H2
| Autor: | Andreas Hans, Philipp Schmidt, André Knie, M. Glass-Maujean, Arno Ehresmann, K. Hosaka, Masatoshi Ukai |
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| Přispěvatelé: | University of Kassel, Tokyo Institute of Technology [Tokyo] (TITECH), Tokyo University of Agriculture and Technology (TUAT), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
[PHYS]Physics [physics] Photon Resolution (electron density) singly excited states Condensed Matter Physics Base (topology) 01 natural sciences Atomic and Molecular Physics and Optics Computational physics photon emission Photon emission H 2 0103 physical sciences photon excitation fluorescence 010306 general physics 010303 astronomy & astrophysics Excitation |
| Zdroj: | Journal of Physics B: Atomic, Molecular and Optical Physics Journal of Physics B: Atomic, Molecular and Optical Physics, IOP Publishing, 2021, 54 (3), pp.034001. ⟨10.1088/1361-6455/abcfda⟩ |
| ISSN: | 0953-4075 1361-6455 |
| Popis: | Dispersed fluorescence of wavelengths between 75 and 180 nm has been recorded after excitation of room temperature H 2 X 1 Σ g + v = 0 by narrow bandwidth monochromatized synchrotron radiation. Spectra have been taken in the exciting-photon energy range between 11 and 18 eV for discrete energy steps of 2.5 meV at a bandwidth of about 10 meV. The exciting-photon energy bandwidth has been narrow enough to induce transitions between individual rovibronic states. The resolution in the dispersed fluorescence detection was partly sufficient to resolve fluorescent transitions between individual rovibronic states. The recorded intensities are presented as two-dimensional photon-excitation photon-emission (PhexPhem) maps. They give a complete overview of experimental dispersed VUV/ FUV fluorescence spectra of H2 for these excitation energies, covering excitation from H 2 X 1 Σ g + v = 0 to all known singly excited states. The presented proof of principle experiments show a way to generate spectroscopic reference data for theory benchmarking and the interpretation of astrophysical observations. |
| Databáze: | OpenAIRE |
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