Journal article
Studying the N₂⁺ (C²Σ⁺u → X²Σ⁺g) fluorescence excited via the 1s⁻¹π* resonance
Publication Details
Authors: | Ehresmann, A.; Werner, L.; Klumpp, S.; Lucht, S.; Schmoranzer, H.; Mickat, S.; Schill, R.; Schartner, K.; Demekhin, P.; Lemeshko, M.; Sukhorukov, V. |
Publication year: | 2006 |
Journal: | Journal of Physics B: Atomic, Molecular and Optical Physics |
Pages range : | 283-304 |
Volume number: | 39 |
ISSN: | 0953-4075 |
URN / URL: |
Abstract
Fluorescence from fragments formed after the de-excitation of the N2*(1s-1π*) resonance has been measured in the spectral range of 135-190 nm. This range is dominated by lines in atomic nitrogen and lines formed by overlapping C2Σ+u(v') → X2Σ+g(v'') bands with Δv = const in the N2+ molecular ion which result from the spectator Auger decays of the N2*(1s-1π*(vr)) resonances. Ab initio calculations of the corresponding potential curves and transition probabilities showed that the observed irregular intensity dependence of the C2Σ+u(v') → X2Σ+g(v'')(Δv = const) fluorescence lines on the vibrational quantum number vr is due to transitions between vibrational levels during the reaction N2(v0 = 0)→ N2*(1s-1π*(vr)) C2Σ+u(v') → X2Σ+g(v'').
Fluorescence from fragments formed after the de-excitation of the N2*(1s-1π*) resonance has been measured in the spectral range of 135-190 nm. This range is dominated by lines in atomic nitrogen and lines formed by overlapping C2Σ+u(v') → X2Σ+g(v'') bands with Δv = const in the N2+ molecular ion which result from the spectator Auger decays of the N2*(1s-1π*(vr)) resonances. Ab initio calculations of the corresponding potential curves and transition probabilities showed that the observed irregular intensity dependence of the C2Σ+u(v') → X2Σ+g(v'')(Δv = const) fluorescence lines on the vibrational quantum number vr is due to transitions between vibrational levels during the reaction N2(v0 = 0)→ N2*(1s-1π*(vr)) C2Σ+u(v') → X2Σ+g(v'').
