Aufsatz in einer Fachzeitschrift
Predissociation of the N₂⁺ C²Σ⁺u state observed via C²Σ⁺u → X²Σ⁺g fluorescence after resonant 1s⁻¹π* excitation of the N₂ molecule
Details zur Publikation
Autor(inn)en: | Ehresmann, A.; Werner, L.; Klumpp, S.; Demekhin, P.; Lemeshko, M.; Sukhorukov, V.; Schartner, K.; Schmoranzer, H. |
Publikationsjahr: | 2006 |
Zeitschrift: | Journal of Physics B: Atomic, Molecular and Optical Physics |
Seitenbereich: | L119-L126 |
Jahrgang/Band : | 39 |
ISSN: | 0953-4075 |
URN / URL: |
Zusammenfassung, Abstract
Predissociation of the N2+ C 2Σ+u(v') vibrational levels with v' ≥ 3 was observed via dispersed C 2Σ+u → X 2Σ+g fluorescence in the spectral range of 165-208 nm after resonant 1s-1π*(vr) excitation of N2 and its subsequent autoionization into the N2+ C state. This range is dominated by lines in atomic nitrogen, by overlapped C 2Σ+u(v') → X 2Σ+g(v'') vibrational band sequences with Δv = const and broad unresolved band systems (D, (2))2Πg(v') → A2Πu(v'') in the N2+ molecular ion. With very high fluorescence resolution of about 0.1 nm FWHM individual C 2Σ+u(v') → X 2Σ+g(v'') vibrational bands have been resolved. Calculation of the observed fluorescence spectra by taking into account predissociation and molecular rotation describes well the shape of both individual vibrational bands C 2Σ+u(v') → X 2Σ+g(v'') and the whole band system.
Predissociation of the N2+ C 2Σ+u(v') vibrational levels with v' ≥ 3 was observed via dispersed C 2Σ+u → X 2Σ+g fluorescence in the spectral range of 165-208 nm after resonant 1s-1π*(vr) excitation of N2 and its subsequent autoionization into the N2+ C state. This range is dominated by lines in atomic nitrogen, by overlapped C 2Σ+u(v') → X 2Σ+g(v'') vibrational band sequences with Δv = const and broad unresolved band systems (D, (2))2Πg(v') → A2Πu(v'') in the N2+ molecular ion. With very high fluorescence resolution of about 0.1 nm FWHM individual C 2Σ+u(v') → X 2Σ+g(v'') vibrational bands have been resolved. Calculation of the observed fluorescence spectra by taking into account predissociation and molecular rotation describes well the shape of both individual vibrational bands C 2Σ+u(v') → X 2Σ+g(v'') and the whole band system.
