1. Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland
2. Advanced Imaging and Microscopy Laboratory, Maryland Nano Center, Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD, 20742-2831, USA
3. Faculty of Science and Technology, Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
4. Department of Physics, Faculty of Mechanical Engineering, University of Technology and Humanities, Stasieckiego 54, 26-600 Radom, Poland