1. Institute of Physics, Technical University of Czȩstochowa, Al. Armii, Krajowej 19, PL-42-200 Czȩstochowa, Poland
2. Institute of Technology, Technical University of Czȩstochowa, Al. Armii, Krajowej 21, PL-42-200 Czȩstochowa, Poland
3. Institute of Physics, Pedagogical University, Al. Armii Krajowej 13, PL-42-200 Czȩstochowa, Poland
4. Institute of Chemistry, Military University of Technology, PL-00-908 Warsaw-Bemovo, Poland