In a state-of-the-art molecular beam apparatus “ARIADNE” and employing advanced mass spectrometric, laser spectroscopic and crossed molecular beam scattering in combination with imaging techniques we study:

Project List

Interaction of fast (fs) laser pulses with molecular beam of mass selected clusters

This interaction leads to fragmentation phenomena (e.g. Coulomb explosion) and the scattering can be recorded with the imaging technique already implemented in our laboratory. Furthermore, the ability to shape the fs pulse opens the possibility to “control” the outcome (fragments=products) from this unimolecular reaction (decay).

 

 Wine analysis by spectroscopic methods

 

Use UV-Vis, FTIR, MS techniques to monitor wine production and quality.

 Development of New Ion Sources

         Molecular beam/Laser ablation, Electrospray ionization, MALDI

 

 

 Structural Properties of Clusters

        Mass spectroscopic investigations on the stability and structure of doped noble gas and molecular clusters

 

 

 Optical Properties of Mass Selected Clusters

         The optical absorption of the clusters as a function of their size.

 

 

 Investigations on Novel Molecules

        Diagnostics and studies on novel  molecules (C₆₀, TiC, C:N, YBCO )

        Gas phase synthesis and studies on novel molecules (metal oxide clusters and biomolecules)

 

 

 Collision Induced Dissociation (CID)

        Cluster beam-cell collisions for measuring the integral cross section.

 

 

 Crossed molecular beam scattering

        Measurements of the

                 1) integral  cross section  by the method of

                                  a)  beam attenuation   

                                  b)  fragmentation

                 2) differential cross section (angular distribution).

                 3) double differential cross section (energy-transfer)

       of mass selected ions colliding with a secondary gas beam.