1. Institute of Physics, Pedagogical University, Krakow, Poland
2. Institute of Technology, Pedagogical University, Krakow, Poland
3. Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, Krakow, Poland
4. Faculty of Materials Science and Ceramics, AGH-University of Science & Technology, Krakow, Poland
5. Faculty of Computer Science, Electronics and Telecommunications, AGH-University of Science & Technology Krakow, Poland