1. Institute of Physics, University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500 Chorzów, Poland
2. Silesian Centre of Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
3. Department of Chemistry, Laboratory of Physical Chemistry, National & Kapodistrian University of Athens, Panepistimiopolis, 157-71 Athens, Greece
4. The Katowice Institute of Information Technologies, Mickiewicza 29, 40-085 Katowice, Poland