Angle-resolved study of resonant Auger decay and fluorescence emission 
processes after core excitations of the terminal and central nitrogen atoms in 
N2O.

Knie, A.; Ilchen, M.; Schmidt, P.; Reiß, P.; Ozga, C.; Kambs, B.; Hans, A.; Müglich, N.; Galitskiy, S. A.; Glaser, L.; Walter, P.; Viefhaus, J.; Ehresmann, A.; Demekhin, P. V.

doi:10.1103/PhysRevA.90.013416

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Angle-resolved study of resonant Auger decay and fluorescence emission processes after core excitations of the terminal and central nitrogen atoms in N2O.

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Glaser, L.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Knie, A., Ilchen, M., Schmidt, P., Reiß, P., Ozga, C., Kambs, B., et al. (2014). Angle-resolved study of resonant Auger decay and fluorescence emission processes after core excitations of the terminal and central nitrogen atoms in N2O. Physical Review A, 90(1): 013416. doi:10.1103/PhysRevA.90.013416.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-BA1B-3

Abstract

Angular distributions of the N2O+(X) and N2O+(A) photoelectrons were measured as functions of the exciting-photon energy with small bandwidth in the vicinity of the resonant Nt(1s→π∗), Nt(1s→σ∗), and Nc(1s→π∗) core excitations of N2O. For selected exciting-photon energies in this range, angular distribution parameters of the N2O+(A→X) fluorescence were also determined. These data are interpreted by ab initio calculations. Long-range exciting-photon energy dependencies of the photoelectron angular distribution parameters βeX(ω) and βeA(ω), recorded vibrationally unresolved, are attributed to an electronic state interference between the direct and the different resonant amplitudes for the population of the final ionic states. In addition to that, strong influence of lifetime vibrational interference is identified in the observed dispersion of the vibrationally resolved fluorescence angular distribution parameter β2XA(ω) across the electronic resonances.