1. Selçuk University, Faculty of Arts and Sciences, Department of Physics, TR-42049 Campus, Konya, Turkey
2. Ankara University, Faculty of Engineering, Department of Engineering Physics, TR-06100, Tandoğan, Ankara, Turkey
3. Ankara University, Faculty of Sciences, Department of Physics, TR-06100 Tandoğan, Ankara, Turkey
4. Balikesir University, Faculty of Art and Sciences, Department of Physics, TR-10100 Balikesir, Turkey