[1] Nevsehir University, Faculty of Arts and Sciences, Physics Department, 50300 Nevsehir, Turkey
[2] TUBITAK-UME, National Metrology Institute, P.O. Box 54, 41470 Gebze, Kocaeli, Turkey
[3] Ankara University, Faculty of Sciences, Physics Department, 06100 Besevler, Ankara, Turkey