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MO: Molekülphysik
MO 25: Poster: Electronic Spectroscopy
MO 25.2: Poster
Tuesday, March 14, 2006, 16:30–18:30, Labsaal
Lifetime vibrational interference effects studied in the NO+(A1Π → X1Σ+) fluorescence after 1s−1π* resonance excitation — •S Klumpp1, L Werner1, A Ehresmann1, Ph V Demekhin2, M P Lemeshko2, V L Sukhorukov2,3, K-H Scharnter4, and H Schmoranzer3 — 1Institut für Physik, Universität Kassel — 2Rostov State University of Transport Communications, Rostov-on-Don — 3Fachbereich Physik, TU Kaiserslautern — 4I. Physikalisches Institut, Universität Giessen
NO+(A1Π → X1Σ+) fluorescence after the de-excitation of the 1s−1π* resonance of N*O and NO* has been studied in the fluorescence range between 118 nm and 142 nm. The measured cross sections for the A 1Π(v’) → X 1Σ+(v”) fluorescence were compared with calculated ones taking into account lifetime vibrational interference (LVI) between pathways connected with different vibrational 1s−1π*(vr) levels. Especially in the case for the NO* core-excited state the complex dependence of the computed cross sections for the A-X fluorescence on the exciting-photon energy and on v’ and v” is connected with LVI.