Research Center

 

DFG Transregional Collaborative Research Center 24 (TRR 24)

 

“Fundamentals of Complex Plasmas”

 

within the project B5

 

“Dynamics and reactivity of electronegative plasmas”

Electron attachment and detachment processes in electronegative plasmas such as oxygen will be investigated by Gaussian beam microwave interferometry and laser photodetachment. Their influence on plasma instabilities and discharge operation modes in continuous as well as pulsed capacitively and inductively coupled radio frequency plasmas (low/high electronegative mode, a/?-mode, E/H-mode) will be studied. Another focus is directed on the collision detachment of negative ions in the RF-sheath and the generation of pseudo-gamma electrons.
(© SFB TRR24)

 

(© J. Meichsner)

 
 

Research Group

 

 

Low-temperature Plasma Physics group

 

Institute of Physics of the University of Greifswald

 

Prof. Dr. Jürgen Meichsner

The research fields of this group comprise the physics and chemistry of non-thermal plasmas. In particular, the dynamics, structure formation and reactivity of low and atmospheric pressure plasmas in contact with surfaces are in the focus of interest. Advanced plasma and gas phase diagnostics are used to achieve fundamental knowledge on the discharge development and stability, the plasma sheath properties as well as the influence of surface charges, secondary species, negative ions and metastables.
The complex interaction of molecular plasmas with material surfaces, leading to the chemical surface modification, etching or deposition of functional thin films, is a second line of investigations. The latter may be applied for synthesis of novel materials combining plasma and nanoscience as well as plasma science and biomedicine.
(© J. Meichsner)