Attachment of low energy electrons to vibrationally excited molecules
The project is supported by the Deutsche Forschungsgemeinschaft and the EU Marie Curie Individual Fellowship HPMF-CT-1999-00080.
Outline of current efforts
Currently we study the mechanisms of the dissociative attachment of electrons in weakly bound highly excited Na**(nl) Rydberg states to Na2 molecules, whereby the vibration of the molecules is optically controlled by means of STIRAP . An essential tool which is expected to give insight into the mechanisms is our recently developed field-free ion imaging system which allows the measurement of product ion kinetic energies without ionising the weakly bound Rydberg electrons by electric fields. We further intend to attempt a control of the Na**(nl) + Na2 triatomic collision complex in order to steer it through an ionisation channel chosen from several energetically possible ones.