Berlin 2001 – wissenschaftliches Programm
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A: Atomphysik
A 20: Atoms in Fields
A 20.1: Vortrag
Freitag, 6. April 2001, 15:45–16:00, H1058
Direct observation of nonadiabatic transitions in Na + Molecule differential optical collisions — •R. Goldstein1, C. Figl1, A. Grimpe1, A. Grosser1, O. Hoffman1, M. Jungen2, F. Rebentrost3, and D. Wößner1 — 1Institut für Atom- und Molekülphysik, Abteilung Atomare Prozesse, Universität Hannover — 2Institut für Physikalische Cemie, Universität Basel — 3Max-Planck Institut für Quantenoptik, Garching
In a differential scattering experiment, we study the dynamics in optical collisions:
| A+X+hν → A*+X, |
where A = Na, X = N2, N2O or C2H2 and A* = Na(3P1/2,3P3/2). We measured the population ratio of the Na(3p1/2) and Na(3p3/2) fine structure levels after the collision. Thus we observe nonadiabatic transitions in the collisional complex. These experimental results will be compared with theoretical calculations. The theoretical data were generated by using potential surfaces and transition dipolar momentums from quantum chemical calculations. The dynamics of the collisions are simulated by a classical trajectory method.