1. Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno 612 00, Czech Republic
2. Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, Brno 612 65, Czech Republic
3. Institute of Physical Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2, Brno 616 69, Czech Republic
4. Central European Institute of Technology, Masaryk University, Kamenice 753/5, Brno 625 00, Czech Republic