Affiliation: | 1. Physics Department, Faculty of Science, Helwan University, 11792, Helwan, Cairo, Egypt;2. Spectroscopy of Polarized Light Laboratory, Physics Department, Faculty of Science, Galala University, New Galala City, Suez, 43511, Egypt;3. Physics Department, Faculty of Science, Ain Shams University, 11566, Abbassia, Cairo, Egypt;4. Physics Department, Faculty of Science, Al-Azhar University, 71452, Assuit, Egypt;5. Physics Department, Faculty of Science, Islamic University of Madinah, Almadinah Al-Munawarah, 42351, Saudi Arabia;1. Nano and Thin film lab. Physics Department, Faculty of Science, South Valley University, Qena 83523, Egypt;2. Electrical and Mechanical Engineering Department, Nagoya Institute of Technology, Nagoya 466-8555, Japan;3. Physics Department, Faculty of Science, South Valley University, Qena 83523, Egypt |