Hannover 2010 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 8: Poster: Electronic Spectroscopy
MO 8.3: Poster
Dienstag, 9. März 2010, 16:00–18:30, Lichthof
Stark effect measurements on the NaK molecule — •Andreas Gerdes, Horst Knöckel, and Eberhard Tiemann — Welfengarten 1, 30167 Hannover
Polar alkali molecules are presently highly studied particles for ultracold ensembles in which the anisotropic long range dipole-dipole interaction are investigated. We took NaK as an example and measured lines of three vibrational bands B 1Π ← X 1Σ+ in an electric field for deriving the dipole moment.
The observed Stark splitting is composed out of the linear contribution of the excited state B state and the second order effects from both B and X states.
A quantum chemistry approach using effective core potentials predicts a dependency on the vibrational quantum number from the dipole moment functions of ground and excited state.
Our measurements allow for a comparison which shows a fairly good agreement with the calculations for the excited state, which characterizes the quality of the calculation.