Affiliation: | a Opticianry Department, Vocational School of Medical Sciences, Turgut Ozal University, Ankara 06370, Turkey;b Physics Department, Faculty Sciences, Dumlupinar University, Kütahya 43000, Turkey;c Physics Department, Gebze Institute of Technology, Kocaeli 41400, Turkey;d Physics Department, Faculty of Sciences, Gazi University, Ankara 06500, Turkey |