1. Laboratoire de Photonique d'Angers EA 4464
2. University of Angers
3. Physics Department
4. 49045 Angers, France
5. MOLTECH Anjou
6. UMR CNRS 6200
7. Research Institute for Applied Physics and Astronomy
8. University of Tabriz
9. Tabriz, Iran
10. Wroclaw University of Technology
11. Faculty of Chemistry
12. Department of Polymer Engineering and Technology
13. 50-370 Wroclaw, Poland