Berlin 2001 – wissenschaftliches Programm
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A: Atomphysik
A 1: Posters Monday (Cluster, Atoms in Fields)
A 1.21: Poster
Montag, 2. April 2001, 12:30–15:00, AT3
Geometric Observation of Atomic and Molecular Collisons — • C. Figl1, R. Goldstein1, A. Grimpe1, J. Grosser1, O. Hoffmann1, F. Rebentrost2, H.-J. Schmidtke3, and D. Wößner1 — 1Institut für Atom- und Molekülphysik, Abteilung Atomare Prozesse, Universität Hannover — 2Max-Planck Institut für Quantenoptik, Garching — 3Experimentelle Physik 1, Universität Würzburg
The optical excitation of collision pairs (often denoted as optical collisions)
| A+X+hν → A*+X |
in an atomic beam experiment has become a
powerful tool for the study of collisions and of the properties of
collisional molecules.
The electronic structures of the sodium-rare-gas and sodium-molecule
collision pairs are probed by optical collisions.
Using polarized laser light enables us to measure the alignment tensor
of the electronic transition dipole moment as a geometric property
of the electronic wave function of the collision pair.
The experimental data are compared with the results of quantum chemical
calculations and used for the verification or modification of the
underlying models.
R. Goldstein, J. Grosser, O. Hoffmann, V. Schumann, D. Wößner,
M. Jungen, M. Lehner, J. Chem. Phys. (accepted).
J. Grosser, O. Hoffmann, and F. Rebentrost, Comments
At. Mol. Phys. 1, 117 (1999).
J. Grosser, O. Hoffmann, C. Rakete, and F. Rebentrost,
J. Phys. Chem. A 101, 7627 (1997).