1. Institute of Technology, Pedagogical University, Krakow, Poland
2. Institute of Physics, Pedagogical University, Krakow, Poland
3. Faculty of Materials Science and Ceramics, AGH-University of Science & Technology, Krakow, Poland
4. Department of Physics, Electronics and Computer Systems, Oles’ Honczar Dnipro National University, Dnipro, Ukraine
5. Faculty of Computer Science, Electronics and Telecommunications, AGH-University of Science & Technology, Krakow, Poland