Michalis Velegrakis

 is Director of Research  in IESL-FORTH (http://www.iesl.forth.gr/people/person.aspx?id=171).




He holds a B.S in Physics at the University of Ioannina, Greece (1979), and a Ph. D. in Physics, at the University of Bielefeld, Germany (1987).




Postdoc, University of Bielefeld, Physics (1987 - 1988)

Assistant, University of Bielefeld, (1988 - 1991)

Research Fellow, FORTH-IESL (1991-11/1994)

Visiting Professor, University of Crete, Physics (1993-2003)

Associated Researcher, FORTH-IESL (1995-1999)

Principal Researcher, FORTH-IESL (1999-2014)

Director of Research,  FORTH-IESL (2014-


Teaching Experience:


Since 1982 he had taken several laboratory, courses and lectures in both undergraduate and postgraduate level in the universities Bielefeld/Germany and Crete.

He has supervised 4 Diploma theses, 4 Masters, 3 Doctoral theses and 6 postdocs.


Research activities and achievements:


Since 1992, he is active in IESL-FORH, where he has grounded (with external funding and grants -e.g. Volkswagen Stiftung) the Cluster Physics and Chemistry Laboratory (http://www.iesl.forth.gr/research/activity.aspx?id=16), with activities that belong to the areas of Molecular Physics, Physical Chemistry and Materials Science.

The research targets the understanding the formation mechanisms, the stability, the structure (geometric and/or electronic) and the properties (optical activity, chemical reactivity, catalytic activity) of clusters and free biomolecules and also to study nanostructured materials made out of clusters.

These goals are approached in a state-of-the-art molecular beam apparatus, employing advanced mass spectrometric, laser spectroscopic and crossed molecular beam scattering in combination with imaging techniques. Based on the results of this research, strong collaborations with theoretical groups in the national and international level have been established.


The output of his research is presented in over 40 publications in peer-reviewed journals and in several talks at international conferences, universities and research centres. He has been involved in several international and national funded research projects either as coordinator or as participant.


Research Fields


Mass spectrometry (Quadrupole Analyzers,    Time of flight Mass Spectrometry)

Laser Spectroscopy

                          Absorption Spectroscopy

                          Multiphoton Spectroscopy

                          Laser Induced Fluorescence (LIF)

                          Cavity Ring Down Spectroscopy (CRDS)

Physics and Chemistry of Clusters and Radicals

Molecular Dynamics

Molecular Beams

Crossed Molecular Beam Scattering


Research Interests


Clusters: formation and properties as a function of their size

Spectroscopy and dynamics on small systems

Instrumentation: development of low-cost, small scale analytical instruments for fast food & beverage quality analysis (mass analysis, optical absorption and emission, electronic nose, etc.).