1. Faculty of Mechanical Engineering, Institute of Physical Engineering, Brno University of Technology, Technická 2, 616 69 Brno, Czech Republic
2. NenoVision, Purkyňova 127, 612 00 Brno, Czech Republic
3. Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 612 00 Brno, Czech Republic